https://reprap.org/mediawiki/api.php?action=feedcontributions&user=Matej101&feedformat=atomRepRap - User contributions [en]2024-03-29T13:06:16ZUser contributionsMediaWiki 1.30.0https://reprap.org/mediawiki/index.php?title=Prusa_i3_MK3&diff=187498Prusa i3 MK32020-03-04T20:39:54Z<p>Matej101: Made the github link point directly to the MK3S page to avoid confusion of non-github-savvy readers</p>
<hr />
<div>{{Languages|Prusa i3 MK3}}<br />
[[Category:Prusa i3| ]]<br />
{{RepRapNavigation|name=Prusa i3 MK3}}<br />
<br />
{{Development<br />
|name = Prusa i3 MK3<br />
|status = working<br />
|image = Prusai3-MK3.jpg<br />
|description = Prusa i3 MK3 is a design by Josef Prusa.<br />
|license = [[GPL]]<br />
|author = Prusajr<br />
|reprap = Prusa i3 MK2<br />
|categories =<br />
[[:Category:Prusa i3|Prusa i3]],<br />
{{tag|Prusa i3 Development}},<br />
{{tag|Prusa Mendel Development}},<br />
{{tag|Prusa Mendel}},<br />
{{tag|Mendel Variations}},<br />
{{tag|Cartesian-XZ-head}}<br />
|url = [https://github.com/prusa3d/Original-Prusa-i3/tree/MK3S Github] <br />
}}The Prusa i3 (iteration 3) MK3 is the newest and most current 3D Printer design by RepRap Core Developer Prusajr. The i3 MK3 incorporates lessons learned from the previous Prusa designs.<br />
See also [[Prusa Mendel (iteration 2)]].<br />
<br />
{{Note | Derivates | The Prusa i3 is a very popular design, which led to many people creating derivates. We list these derivates in [[:Category: Prusa i3 Derivate]]. Also check [http://reprap.org/wiki/Prusa_i3_Variants the Prusa i3 Variants page], as well as [http://reprap.org/wiki/Category:Prusa_i3_Development the Prusa i3 Development page]}}<br />
&nbsp;<br />
<br />
== Main improvements ==<br />
The following is a list of the main improvements from MK2S.<br />
<br />
* Filament sensor<br />
* Power Panic<br />
* RPM sensing fans and Noctua fan<br />
* Ambient thermistor and P.I.N.D.A 2 with thermistor<br />
* EINSY Rambo motherboard<br />
* Trinamic 2130 drivers with layer shift detection, faster and silent printing<br />
* New robust Y axis made out of aluminium profiles<br />
* Bondtech hobbed gears<br />
* Magnetic MK52 Heatbed<br />
* Powder coated PEI spring steel print sheet<br />
* Ready for OctoPrint<br />
<br />
== History ==<br />
<br />
=== Offical kit available (Sep 2017) ===<br />
<br />
In May 2016, the MK3 has been [https://www.prusaprinters.org/original-prusa-i3-mk3-bloody-smart/ announced by Prusa] with the phrases of "IT'S BLOODY SMART!".<br />
<br />
=== B7/R3 extruder parts released (Jul 2018) ===<br />
<br />
In July 2018, Prusa3d released a new updated extruder with better airflow for both fans. The new parts are available on Prusa's website and on the github page.<br />
<br />
=== Multi material upgrade 2.0 (August 2018) ===<br />
<br />
In August 2018, Prusa started shipping the MMU2.0. The upgrade consists of five spoolholders with bowden tubing and a filament switching mechanism on the top of the printer frame. The upgrade makes the printer capable of using up to five materials in the same print with just a single direct drive extruder and one hotend. The switching mechanism has it's own custom control board based on Atmega 32u4.<br />
<br />
=== Textile wrap upgrade + more B7/R3 parts (Nov 2018) ===<br />
<br />
Since November 2018, the MK3's have been shipping with a textile sleeve wrap for the cables instead of the previous spiral wrap. The textile wrap is supposed to make the wires last longer. <br />
New B7/R3 parts have been released:<br />
<br />
a new Einsy RAMBo case with better and easier to use cable mounts and an add on slot for Octoprint<br />
<br />
an updated x axis that is easier to assemble<br />
<br />
reinforced y axis parts (the previous version sometimes cracked during assembly) <br />
<br />
reinforced Z motor holders<br />
<br />
=== MK3S and MMU2S released(Feb 2019) ===<br />
<br />
In February 2019, Prusa3d released a new version of the MK3 called MK3S. The upgrade swaps out the previously used unreliable laser filament sensor for an IR one (thus requiring a complete extruder redesign) and improves the Y axis tensioning system. The new printed parts are designated C1/R4. As with MK2S, all new orders ship with this upgrade already in place. Prusa offers the upgrade for $24.2. <br />
The MMU2S upgrade is free for all MMU2 owners and consists of a redesigned extruder that prevents jamming and a filament buffer that prevents tangling. It also includes the MK3S upgrade. New orders of the Multi material upgrade from now on ship pre-upgraded to MMU2S.<br />
<br />
== Printed Parts ==<br />
<br />
The STL files are available on [https://www.prusa3d.com/prusa-i3-printable-parts/ Prusa Research].<br />
The SCAD and some STEP files are available on [https://github.com/prusa3d/Original-Prusa-i3/tree/MK3?files=1 Github] <br />
<br />
== Electronics ==<br />
=== Power ===<br />
<br />
Unlike previous Prusa machines, the MK3 runs on 24 volts. The fans run on 5V supplied by the mainboard. <br />
<br />
=== Mainboard ===<br />
<br />
The printer uses [[EinsyRambo]] as the main controller. <br />
<br />
=== Filament sensor ===<br />
<br />
This optical filament encoder is sensing the movement of the filament.<br />
So the printer can detect not only filament outage, but also a jammed nozzle.<br />
In addition, you can use filament auto loading function with this sensor.<br />
<br />
MK3 uses a laser filament sensor aimed directly at the filament, which proved unreliable because different filament reflected the laser in different ways. <br />
<br />
In the MK3S extruder, the filament moves aside a bearing ball which presses a small lever, triggering an infrared laser sensor. In this design, the sensor functions the same way a normally closed micro switch would, so the sensor cannot sense if the filament is moving or not. <br />
<br />
=== Z endstop/bed leveling sensor (PINDA 2) ===<br />
<br />
The printer uses an 8mm NPN inductive proximity sensor for bed leveling and as a z axis endstop. The heated bed has nine chunks of metal embedded in it in a grid pattern for automatic bed warp compensation. <br />
Normally, inductive probes have different triggering distances with different temperatures. The probe has an integrated thermistor to help the board compensate for that. <br />
<br />
=== Extruder ===<br />
<br />
[[Extruder]]<br />
<br />
The extruder uses Bontech drive gears and an E3d V6 hotend with the standard e3d thermistor (Semitec 104GT), a 24V 40W heater and a 0.4mm brass nozzle. The extruder is a direct drive one, the Bondtech gear is mounted directly to the motor shaft. <br />
<br />
===Heated Bed===<br />
<br />
The printer uses a custom MK52 heatbed. The bed is made out of very thick PCB with 27 embedded magnets. The magnets hold a removable sheet of spring steel that is either powder coated with PEI or has a replacable PEI sheet glued to it. The steel sheets can be removed immidiatelly after a print stops and a new sheet can be inserted, resulting in faster printing in large quantities. After the printed objects cool down, they can be easily removed just by flexing the sheet.</div>Matej101https://reprap.org/mediawiki/index.php?title=Prusa_i3_MK2&diff=186270Prusa i3 MK22019-09-05T20:12:43Z<p>Matej101: Fixed link</p>
<hr />
<div>{{Languages|Prusa i3 MK2}}<br />
[[Category:Prusa i3| ]]<br />
{{RepRapNavigation|name=Prusa i3 MK2}}<br />
<br />
{{Development<br />
|name = Prusa i3 MK2<br />
|status = working<br />
|image = Prusai3-MK2.jpg<br />
|description = Prusa i3 MK2 is a design by Josef Prusa.<br />
|license = [[GPL]]<br />
|author = Prusajr<br />
|reprap = Prusa i3<br />
|categories =<br />
[[:Category:Prusa i3|Prusa i3]],<br />
{{tag|Prusa i3 Development}},<br />
{{tag|Prusa Mendel Development}},<br />
{{tag|Prusa Mendel}},<br />
{{tag|Mendel Variations}},<br />
{{tag|Cartesian-XZ-head}}<br />
|url = [https://github.com/prusa3d/Original-Prusa-i3 Github]<br />
}}The Prusa i3 (iteration 3) MK2 is the most popular 3D Printer design by RepRap Core Developer Prusajr. The i3 MK2 incorporates lessons learned from the previous three Prusa designs.<br />
See also: [[Prusa Mendel (iteration 2)]], [[Prusa i3 MK3]].<br />
<br />
{{Note | Derivates | The Prusa i3 is a very popular design, which led to many people creating derivates. We list these derivates in [[:Category: Prusa i3 Derivate]]. Also check [http://reprap.org/wiki/Prusa_i3_Variants the Prusa i3 Variants page], as well as [http://reprap.org/wiki/Category:Prusa_i3_Development the Prusa i3 Development page]}}<br />
&nbsp;<br />
<br />
== Main improvements ==<br />
The following is a list of the main improvements made upon the Prusa Mendel Iteration 3<br />
<br />
* Enhanced frame rigidity by conection the Y axis to the PSU cover.<br />
* Easy assembly<br />
* Bigger build area (250x210x200mm)<br />
* Zoned PCB heatbed MK42<br />
* Better Z motors<br />
* Automatic bed leveling with an inductive proximity sensor<br />
<br />
== Development ==<br />
The development of the Prusa i3 MK2 is hosted on github: https://github.com/prusa3d/Orignal-Prusa-i3/tree/MK2.<br />
<br />
== History ==<br />
<br />
=== Offical kit available (May 2016) ===<br />
<br />
In May 2016, the official kit became [http://shop.prusa3d.com/en/3d-printers/59-original-prusa-i3-mk2-kit.html available from Prusa].<br />
<br />
=== Multi Material upgrade available (September 2016) ===<br />
<br />
Multi Material kit has been [https://www.prusaprinters.org/original-prusa-i3-mk2-multi-material-upgrade-release/ released in September 2016].<br />
<br />
This kit allows you to print not only just one filament, but also 2-4 colors simultaneously.<br />
Since multi material extruders take huge place on the X-axis, prusa decided to use Bowden type extruders instead of direct drive system.<br />
<br />
=== MK2S has been available (March 2017) ===<br />
<br />
In March 2017, the MK2S has been [https://www.prusaprinters.org/original-prusa-i3-mk2s-release/ released].<br />
This update contains following components:<br />
* Better LM8UU mounting on Y axis<br />
* Better LM8UUs and smooth rods<br />
* Better P.I.N.D.A. probe mount<br />
* Improved cable stress relief on extruder<br />
* Better electronics cover<br />
<br />
MK2 users are able to get upgrade kit for $49.<br />
When this upgrade has been announced, new shipments of the MK2 was automatically upgraded to MK2"S".<br />
<br />
=== MK3 and MK2.5 upgrade (February 2018) ===<br />
<br />
Following the release of the [[Prusa i3 MK3]], Prusa3D released two upgrade kits - a full MK3 upgrade and a partial MK2.5 upgrade. The MK2.5 upgrade offers most of the functionality of the MK3 (except power panic, a more rigid frame, a taller Z axis and smoother stepper drivers) for about 1/3 of the price,because a full MK3 upgrade requires all electronics to be swapped out for 24V variants. <br />
<br />
Further development of the MK2.5 is identical to MK3 in most aspects, using just slightly modified printed parts and firmware. <br />
<br />
=== MK2/S discontinued (February 2019) ===<br />
In the MK3S release announcement, Prusa stated that the MK2S is no longer being produced and that stocks are dwindling. The MK2S can no longer be ordered from Prusa. <br />
<br />
== Printed Parts ==<br />
<br />
[[OpenSCAD]] files for the printed parts are available on the [https://github.com/prusa3d/Orignal-Prusa-i3/tree/MK2 Github repository] or [https://www.prusa3d.com/prusa-i3-printable-parts/ Prusa Research].<br />
<br />
== Electronics ==<br />
=== Power ===<br />
<br />
The original printer runs on 12V.<br />
<br />
=== Inductive proximity sensor (PINDA) ===<br />
<br />
The original printer uses a custom - made "PINDA probe". It is a 5V NPN normally closed inductive proximity sensor. The probe is 35mm long and has an M8 thread on the outside. It has a 4mm sensing range with 3% repeat accuracy and a 1000/s sample rate.<br />
<br />
=== Stepper Motors ===<br />
<br />
The Prusa i3 MK2 uses, including the extruder, 5 NEMA17 stepper motors. Two of these motors, the Z axis motors, are connected to the same stepper driver of the electronics and have integrated trapezoid leadscrews. <br />
<br />
=== Controller Electronics ===<br />
<br />
In it's original configuration Prusa i3 MK2 is using RAMBo mini board from Ultimachine.<br />
<br />
=== [[Extruder]] ===<br />
<br />
Prusa i3 MK2 extruder is designed around E3D V6 hotend. It uses a 38mm NEMA17 stepper motor with a hobbled gear mounted directly to the motor's shaft. <br />
<br />
=== Heated Bed ===<br />
<br />
The Prusa i3 MK2 was released together with PCB Heatbed MK42. There is a PEI sheet glued on top of the PCB for print adhesion. There 9 metal discs embedded in the heatbed that serve as measuring points for the inductive sensor. The measuring points are placed in a grid pattern and the printer can compensate for a warped bed after measuring the height of every measuring point compared to the others.</div>Matej101https://reprap.org/mediawiki/index.php?title=SKR&diff=185927SKR2019-08-02T21:48:19Z<p>Matej101: Added the features section</p>
<hr />
<div>{{Languages}}<br />
{{Development<br />
|name = SKR 1.3<br />
|status = Working<br />
|image = SKR_V1.3.jpg<br />
|description = 32bit mainboard<br />
|license = unknown, unprovided<br />
|author = BIQU/BIGTREETECH<br />
|url = [https://github.com/bigtreetech/BIGTREETECH-SKR-V1.3 Github]<br />
|categories = {{tag | Electronics}}, {{tag | 32-bit board}}<br />
}}The SKR is a 32/bit 3d printer mainboard developed and manufactured by BIQU/BIGTREETECH. <br />
== Features ==<br />
=== Hardware ===<br />
* 32bit [https://www.nxp.com/products/processors-and-microcontrollers/arm-based-processors-and-mcus/general-purpose-mcus/lpc1700-cortex-m3/512kb-flash-64kb-sram-ethernet-usb-lqfp100-package:LPC1768FBD100 LPC1768] ARM Cortex-M3 CPU: 100MHz clock, 512 kB flash, 64kB RAM<br />
* 5 Pololu Stepstick slots. Each stepstick slot also has a 4pin EN,STEP,DIR,GND header for external stepstick compatability. The socket rows are color coded to avoid accidentally plugging the stepstick in backwards.<br />
* Jumper configurable SPI and UART interface for Trinaic stepper drivers (so you don't need to have a mess of jumper cables on top of your drivers)<br />
* Replaceable automotive fuses (one for the heatbed, one for everything else)<br />
* 4 PWM MOSFET outputs: 1 heatbed, 2 extruder heaters, 1 fan by default<br />
* "Always on fan header" (a VCC + GND header with a fan connector)<br />
* Onboard SD card slot<br />
* 4 thermistor inputs<br />
* 6 endstop inputs<br />
* LCD plus TFT touchscreen connectors<br />
* 5V power can be switched between USB supplied and internal 5V regulator with a jumper (printing only works with internal regulator power)<br />
=== Software ===<br />
The SKR can run [[Marlin]] 2.0 and [[Smoothieware]] out of the box. It should also be possible to run [[Klipper]] or an experimental [[RepRapFirmware]] [https://reprap.org/forum/read.php?147,810214 port].</div>Matej101https://reprap.org/mediawiki/index.php?title=File:SKR_V1.3.jpg&diff=185926File:SKR V1.3.jpg2019-08-02T21:23:39Z<p>Matej101: Image of the SKR board</p>
<hr />
<div>Image of the SKR board</div>Matej101https://reprap.org/mediawiki/index.php?title=SKR&diff=185925SKR2019-08-02T21:17:02Z<p>Matej101: initial version</p>
<hr />
<div>{{Languages}}<br />
{{Development<br />
|name = SKR 1.3<br />
|description = 32bit mainboard<br />
|license = unknown, unprovided<br />
|author = BIQU/BIGTREETECH<br />
|url = [https://github.com/bigtreetech/BIGTREETECH-SKR-V1.3 Github]<br />
|categories = {{tag | Electronics}}, {{tag | 32-bit board}}<br />
}}The SKR is a 32/bit 3d printer mainboard developed and manufactured by BIQU/BIGTREETECH.</div>Matej101https://reprap.org/mediawiki/index.php?title=Sbase&diff=185923Sbase2019-08-02T20:46:34Z<p>Matej101: Added the Features section, updated license, added Github link, reformated description</p>
<hr />
<div>{{Languages}}<br />
{{Development<br />
|image = MKS_SBASE_V1.3.jpg<br />
|status = Working<br />
|name = SBASE v1.3<br />
|description = 32bit board<br />
|license = uknown, there is no license on the github page and MKS stated it is not open source<br />
|author = MKS<br />
|reprap = Arduino-based electronics<br />
|categories = {{tag|Electronics}} {{tag|32-bit board}}<br />
|url = [https://github.com/makerbase-mks/MKS-SBASE Github]<br />
}}MKS-SBASE is a 32bit 3D Printer main board designed and manufactured by Makerbase (MKS).<br />
<br />
== Features ==<br />
=== Hardware ===<br />
* 32bit [https://www.nxp.com/products/processors-and-microcontrollers/arm-based-processors-and-mcus/general-purpose-mcus/lpc1700-cortex-m3/512kb-flash-64kb-sram-ethernet-usb-lqfp100-package:LPC1768FBD100 LPC1768] ARM Cortex-M3 CPU: 100MHz clock, 512 kB flash, 64kB RAM (newest revision uses [https://www.nxp.com/products/processors-and-microcontrollers/arm-based-processors-and-mcus/general-purpose-mcus/lpc1700-cortex-m3/512kb-flash-64kb-sram-ethernet-usb-lqfp100-package:LPC1769FBD100 LPC1769], which is identical but runs at 120MHz)<br />
* 5 soldered DRV8852 stepper drivers with a pre-instaled heatsink. Every driver has a header with STEP, ENABLE and DIR pins to make using external drivers possible.<br />
* On-board SD card reader<br />
* On-board Ethernet, remote controll through Smoothieware web interface<br />
* 24V compatable<br />
* Driver Vref set by digipots<br />
* 4 thermistor inputs<br />
* 4 PWM MOSFET channels (heated bed, two extruders, one fan by default) with a pre-installed heatsink<br />
* 6 endstop inputs, endstop voltage can be switched between 5V and 3.3V with a jumper<br />
* Thermocouple connector<br />
* Onboard ReprapDiscount connectors plus TFT touchscreen connector (supports LCD12864 and MKS TFT)<br />
* Unused GPIO header: 5 I/O pins plus ground pin<br />
* 6pin programming header<br />
=== Software ===<br />
The SBASE can run [[Marlin]] 2.0 and [[Smoothieware]]. There is also an experimental [https://reprap.org/forum/read.php?147,810214 port] of [[Reprapfirmware]] in the forums.<br />
It should be noted that the [[Smoothieware]] community [http://smoothieware.org/troubleshooting#what-is-wrong-with-mks considers the board (and MKS in general) decremental] to their mission and goals because the board is not open source and does not help the Smoothie project in any way. Because of that, SBASE users may find it difficult to get support for [[Smoothieware]] related issues.</div>Matej101https://reprap.org/mediawiki/index.php?title=Prusa_i3_MK3&diff=185922Prusa i3 MK32019-08-02T20:09:54Z<p>Matej101: another typo fix</p>
<hr />
<div>{{Languages|Prusa i3 MK3}}<br />
[[Category:Prusa i3| ]]<br />
{{RepRapNavigation|name=Prusa i3 MK3}}<br />
<br />
{{Development<br />
|name = Prusa i3 MK3<br />
|status = working<br />
|image = Prusai3-MK3.jpg<br />
|description = Prusa i3 MK3 is a design by Josef Prusa.<br />
|license = [[GPL]]<br />
|author = Prusajr<br />
|reprap = Prusa i3 MK2<br />
|categories =<br />
[[:Category:Prusa i3|Prusa i3]],<br />
{{tag|Prusa i3 Development}},<br />
{{tag|Prusa Mendel Development}},<br />
{{tag|Prusa Mendel}},<br />
{{tag|Mendel Variations}},<br />
{{tag|Cartesian-XZ-head}}<br />
|url = [https://github.com/prusa3d/Original-Prusa-i3/ Github] <br />
}}The Prusa i3 (iteration 3) MK3 is the newest and most current 3D Printer design by RepRap Core Developer Prusajr. The i3 MK3 incorporates lessons learned from the previous Prusa designs.<br />
See also [[Prusa Mendel (iteration 2)]].<br />
<br />
{{Note | Derivates | The Prusa i3 is a very popular design, which led to many people creating derivates. We list these derivates in [[:Category: Prusa i3 Derivate]]. Also check [http://reprap.org/wiki/Prusa_i3_Variants the Prusa i3 Variants page], as well as [http://reprap.org/wiki/Category:Prusa_i3_Development the Prusa i3 Development page]}}<br />
&nbsp;<br />
<br />
== Main improvements ==<br />
The following is a list of the main improvements from MK2S.<br />
<br />
* Filament sensor<br />
* Power Panic<br />
* RPM sensing fans and Noctua fan<br />
* Ambient thermistor and P.I.N.D.A 2 with thermistor<br />
* EINSY Rambo motherboard<br />
* Trinamic 2130 drivers with layer shift detection, faster and silent printing<br />
* New robust Y axis made out of aluminium profiles<br />
* Bondtech hobbed gears<br />
* Magnetic MK52 Heatbed<br />
* Powder coated PEI spring steel print sheet<br />
* Ready for OctoPrint<br />
<br />
== History ==<br />
<br />
=== Offical kit available (Sep 2017) ===<br />
<br />
In May 2016, the MK3 has been [https://www.prusaprinters.org/original-prusa-i3-mk3-bloody-smart/ announced by Prusa] with the phrases of "IT'S BLOODY SMART!".<br />
<br />
=== B7/R3 extruder parts released (Jul 2018) ===<br />
<br />
In July 2018, Prusa3d released a new updated extruder with better airflow for both fans. The new parts are available on Prusa's website and on the github page.<br />
<br />
=== Multi material upgrade 2.0 (August 2018) ===<br />
<br />
In August 2018, Prusa started shipping the MMU2.0. The upgrade consists of five spoolholders with bowden tubing and a filament switching mechanism on the top of the printer frame. The upgrade makes the printer capable of using up to five materials in the same print with just a single direct drive extruder and one hotend. The switching mechanism has it's own custom control board based on Atmega 32u4.<br />
<br />
=== Textile wrap upgrade + more B7/R3 parts (Nov 2018) ===<br />
<br />
Since November 2018, the MK3's have been shipping with a textile sleeve wrap for the cables instead of the previous spiral wrap. The textile wrap is supposed to make the wires last longer. <br />
New B7/R3 parts have been released:<br />
<br />
a new Einsy RAMBo case with better and easier to use cable mounts and an add on slot for Octoprint<br />
<br />
an updated x axis that is easier to assemble<br />
<br />
reinforced y axis parts (the previous version sometimes cracked during assembly) <br />
<br />
reinforced Z motor holders<br />
<br />
=== MK3S and MMU2S released(Feb 2019) ===<br />
<br />
In February 2019, Prusa3d released a new version of the MK3 called MK3S. The upgrade swaps out the previously used unreliable laser filament sensor for an IR one (thus requiring a complete extruder redesign) and improves the Y axis tensioning system. The new printed parts are designated C1/R4. As with MK2S, all new orders ship with this upgrade already in place. Prusa offers the upgrade for $24.2. <br />
The MMU2S upgrade is free for all MMU2 owners and consists of a redesigned extruder that prevents jamming and a filament buffer that prevents tangling. It also includes the MK3S upgrade. New orders of the Multi material upgrade from now on ship pre-upgraded to MMU2S.<br />
<br />
== Printed Parts ==<br />
<br />
The STL files are available on [https://www.prusa3d.com/prusa-i3-printable-parts/ Prusa Research].<br />
The SCAD and some STEP files are available on [https://github.com/prusa3d/Original-Prusa-i3/tree/MK3?files=1 Github] <br />
<br />
== Electronics ==<br />
=== Power ===<br />
<br />
Unlike previous Prusa machines, the MK3 runs on 24 volts. The fans run on 5V supplied by the mainboard. <br />
<br />
=== Mainboard ===<br />
<br />
The printer uses [[EinsyRambo]] as the main controller. <br />
<br />
=== Filament sensor ===<br />
<br />
This optical filament encoder is sensing the movement of the filament.<br />
So the printer can detect not only filament outage, but also a jammed nozzle.<br />
In addition, you can use filament auto loading function with this sensor.<br />
<br />
MK3 uses a laser filament sensor aimed directly at the filament, which proved unreliable because different filament reflected the laser in different ways. <br />
<br />
In the MK3S extruder, the filament moves aside a bearing ball which presses a small lever, triggering an infrared laser sensor. In this design, the sensor functions the same way a normally closed micro switch would, so the sensor cannot sense if the filament is moving or not. <br />
<br />
=== Z endstop/bed leveling sensor (PINDA 2) ===<br />
<br />
The printer uses an 8mm NPN inductive proximity sensor for bed leveling and as a z axis endstop. The heated bed has nine chunks of metal embedded in it in a grid pattern for automatic bed warp compensation. <br />
Normally, inductive probes have different triggering distances with different temperatures. The probe has an integrated thermistor to help the board compensate for that. <br />
<br />
=== Extruder ===<br />
<br />
[[Extruder]]<br />
<br />
The extruder uses Bontech drive gears and an E3d V6 hotend with the standard e3d thermistor (Semitec 104GT), a 24V 40W heater and a 0.4mm brass nozzle. The extruder is a direct drive one, the Bondtech gear is mounted directly to the motor shaft. <br />
<br />
===Heated Bed===<br />
<br />
The printer uses a custom MK52 heatbed. The bed is made out of very thick PCB with 27 embedded magnets. The magnets hold a removable sheet of spring steel that is either powder coated with PEI or has a replacable PEI sheet glued to it. The steel sheets can be removed immidiatelly after a print stops and a new sheet can be inserted, resulting in faster printing in large quantities. After the printed objects cool down, they can be easily removed just by flexing the sheet.</div>Matej101https://reprap.org/mediawiki/index.php?title=Prusa_i3_MK3&diff=185921Prusa i3 MK32019-08-02T19:09:26Z<p>Matej101: Typo fixes</p>
<hr />
<div>{{Languages|Prusa i3 MK3}}<br />
[[Category:Prusa i3| ]]<br />
{{RepRapNavigation|name=Prusa i3 MK3}}<br />
<br />
{{Development<br />
|name = Prusa i3 MK3<br />
|status = working<br />
|image = Prusai3-MK3.jpg<br />
|description = Prusa i3 MK3 is a design by Josef Prusa.<br />
|license = [[GPL]]<br />
|author = Prusajr<br />
|reprap = Prusa i3 MK2<br />
|categories =<br />
[[:Category:Prusa i3|Prusa i3]],<br />
{{tag|Prusa i3 Development}},<br />
{{tag|Prusa Mendel Development}},<br />
{{tag|Prusa Mendel}},<br />
{{tag|Mendel Variations}},<br />
{{tag|Cartesian-XZ-head}}<br />
|url = [https://github.com/prusa3d/Original-Prusa-i3/ Github] <br />
}}The Prusa i3 (iteration 3) MK3 is the newest and most current 3D Printer design by RepRap Core Developer Prusajr. The i3 MK3 incorporates lessons learned from the previous Prusa designs.<br />
See also [[Prusa Mendel (iteration 2)]].<br />
<br />
{{Note | Derivates | The Prusa i3 is a very popular design, which led to many people creating derivates. We list these derivates in [[:Category: Prusa i3 Derivate]]. Also check [http://reprap.org/wiki/Prusa_i3_Variants the Prusa i3 Variants page], as well as [http://reprap.org/wiki/Category:Prusa_i3_Development the Prusa i3 Development page]}}<br />
&nbsp;<br />
<br />
== Main improvements ==<br />
The following is a list of the main improvements from MK2S.<br />
<br />
* Filament sensor<br />
* Power Panic<br />
* RPM sensing fans and Noctua fan<br />
* Ambient thermistor and P.I.N.D.A 2 with thermistor<br />
* EINSY Rambo motherboard<br />
* Trinamic 2130 drivers with layer shift detection, faster and silent printing<br />
* New robust Y axis made out of aluminium profiles<br />
* Bondtech hobbed gears<br />
* Magnetic MK52 Heatbed<br />
* Powder coated PEI spring steel print sheet<br />
* Ready for OctoPrint<br />
<br />
== History ==<br />
<br />
=== Offical kit available (Sep 2017) ===<br />
<br />
In May 2016, the MK3 has been [https://www.prusaprinters.org/original-prusa-i3-mk3-bloody-smart/ announced by Prusa] with the phrases of "IT'S BLOODY SMART!".<br />
<br />
=== B7/R3 extruder parts released (Jul 2018) ===<br />
<br />
In July 2018, Prusa3d released a new updated extruder with better airflow for both fans. The new parts are available on Prusa's website and on the github page.<br />
<br />
=== Multi material upgrade 2.0 (August 2018) ===<br />
<br />
In August 2018, Prusa started shipping the MMU2.0. The upgrade consists of five spoolholders with bowden tubing and a filament switching mechanism on the top of the printer frame. The upgrade makes the printer capable of using up to five materials in the same print with just a single direct drive extruder and one hotend. The switching mechanism has it's own custom control board based on Atmega 32u4.<br />
<br />
=== Textile wrap upgrade + more B7/R3 parts (Nov 2018) ===<br />
<br />
Since November 2018, the MK3's have been shipping with a textile sleeve wtlrap for the cables instead of the previous spiral wrap. The textile wrap is supposed to make the wires last longer. <br />
New B7/R3 parts have been released:<br />
<br />
a new Einsy RAMBo case with better and easier to use cable mounts and an add on slot for Octoprint<br />
<br />
an updated x axis that is easier to assemble<br />
<br />
reinforced y axis parts (the previous version sometimes cracked during assembly) <br />
<br />
reinforced Z motor holders<br />
<br />
=== MK3S and MMU2S released(Feb 2019) ===<br />
<br />
In February 2019, Prusa3d released a new version of the MK3 called MK3S. The upgrade swaps out the previously used unreliable laser filament sensor for an IR one (thus requiring a complete extruder redesign) and improves the Y axis tensioning system. The new printed parts are designated C1/R4. As with MK2S, all new orders ship with this upgrade already in place. Prusa offers the upgrade for $24.2. <br />
The MMU2S upgrade is free for all MMU2 owners and consists of a redesigned extruder that prevents jamming and a filament buffer that prevents tangling. It also includes the MK3S upgrade. New orders of the Multi material upgrade from now on ship pre-upgraded to MMU2S.<br />
<br />
== Printed Parts ==<br />
<br />
The STL files are available on [https://www.prusa3d.com/prusa-i3-printable-parts/ Prusa Research].<br />
The SCAD and some STEP files are available on [https://github.com/prusa3d/Original-Prusa-i3/tree/MK3?files=1 Github] <br />
<br />
== Electronics ==<br />
=== Power ===<br />
<br />
Unlike previous Prusa machines, the MK3 runs on 24 volts. The fans run on 5V supplied by the mainboard. <br />
<br />
=== Mainboard ===<br />
<br />
The printer uses [[EinsyRambo]] as the main controller. <br />
<br />
=== Filament sensor ===<br />
<br />
This optical filament encoder is sensing the movement of the filament.<br />
So the printer can detect not only filament outage, but also a jammed nozzle.<br />
In addition, you can use filament auto loading function with this sensor.<br />
<br />
MK3 uses a laser filament sensor aimed directly at the filament, which proved unreliable because different filament reflected the laser in different ways. <br />
<br />
In the MK3S extruder, the filament moves aside a bearing ball which presses a small lever, triggering an infrared laser sensor. In this design, the sensor functions the same way a normally closed micro switch would, so the sensor cannot sense if the filament is moving or not. <br />
<br />
=== Z endstop/bed leveling sensor (PINDA 2) ===<br />
<br />
The printer uses an 8mm NPN inductive proximity sensor for bed leveling and as a z axis endstop. The heated bed has nine chunks of metal embedded in it in a grid pattern for automatic bed warp compensation. <br />
Normally, inductive probes have different triggering distances with different temperatures. The probe has an integrated thermistor to help the board compensate for that. <br />
<br />
=== Extruder ===<br />
<br />
[[Extruder]]<br />
<br />
The extruder uses Bontech drive gears and an E3d V6 hotend with the standard e3d thermistor (Semitec 104GT), a 24V 40W heater and a 0.4mm brass nozzle. The extruder is a direct drive one, the Bondtech gear is mounted directly to the motor shaft. <br />
<br />
===Heated Bed===<br />
<br />
The printer uses a custom MK52 heatbed. The bed is made out of very thick PCB with 27 embedded magnets. The magnets hold a removable sheet of spring steel that is either powder coated with PEI or has a replacable PEI sheet glued to it. The steel sheets can be removed immidiatelly after a print stops and a new sheet can be inserted, resulting in faster printing in large quantities. After the printed objects cool down, they can be easily removed just by flexing the sheet.</div>Matej101https://reprap.org/mediawiki/index.php?title=Prusa_i3_MK2&diff=185523Prusa i3 MK22019-05-05T15:41:58Z<p>Matej101: fixed a typo in a link (Mk3 --> MK3)</p>
<hr />
<div>{{Languages|Prusa i3 MK2}}<br />
[[Category:Prusa i3| ]]<br />
{{RepRapNavigation|name=Prusa i3 MK2}}<br />
<br />
{{Development<br />
|name = Prusa i3 MK2<br />
|status = working<br />
|image = Prusai3-MK2.jpg<br />
|description = Prusa i3 MK2 is a design by Josef Prusa.<br />
|license = [[GPL]]<br />
|author = Prusajr<br />
|reprap = Prusa i3<br />
|categories =<br />
[[:Category:Prusa i3|Prusa i3]],<br />
{{tag|Prusa i3 Development}},<br />
{{tag|Prusa Mendel Development}},<br />
{{tag|Prusa Mendel}},<br />
{{tag|Mendel Variations}},<br />
{{tag|Cartesian-XZ-head}}<br />
[https://github.com/prusa3d/Original-Prusa-i3 Github]<br />
}}The Prusa i3 (iteration 3) MK2 is the most popular 3D Printer design by RepRap Core Developer Prusajr. The i3 MK2 incorporates lessons learned from the previous three Prusa designs.<br />
See also: [[Prusa Mendel (iteration 2)]], [[Prusa i3 MK3]].<br />
<br />
{{Note | Derivates | The Prusa i3 is a very popular design, which led to many people creating derivates. We list these derivates in [[:Category: Prusa i3 Derivate]]. Also check [http://reprap.org/wiki/Prusa_i3_Variants the Prusa i3 Variants page], as well as [http://reprap.org/wiki/Category:Prusa_i3_Development the Prusa i3 Development page]}}<br />
&nbsp;<br />
<br />
== Main improvements ==<br />
The following is a list of the main improvements made upon the Prusa Mendel Iteration 3<br />
<br />
* Enhanced frame rigidity by conection the Y axis to the PSU cover.<br />
* Easy assembly<br />
* Bigger build area (250x210x200mm)<br />
* Zoned PCB heatbed MK42<br />
* Better Z motors<br />
* Automatic bed leveling with an inductive proximity sensor<br />
<br />
== Development ==<br />
The development of the Prusa i3 MK2 is hosted on github: https://github.com/prusa3d/Orignal-Prusa-i3/tree/MK2.<br />
<br />
== History ==<br />
<br />
=== Offical kit available (May 2016) ===<br />
<br />
In May 2016, the official kit became [http://shop.prusa3d.com/en/3d-printers/59-original-prusa-i3-mk2-kit.html available from Prusa].<br />
<br />
=== Multi Material upgrade available (September 2016) ===<br />
<br />
Multi Material kit has been [https://www.prusaprinters.org/original-prusa-i3-mk2-multi-material-upgrade-release/ released in September 2016].<br />
<br />
This kit allows you to print not only just one filament, but also 2-4 colors simultaneously.<br />
Since multi material extruders take huge place on the X-axis, prusa decided to use Bowden type extruders instead of direct drive system.<br />
<br />
=== MK2S has been available (March 2017) ===<br />
<br />
In March 2017, the MK2S has been [https://www.prusaprinters.org/original-prusa-i3-mk2s-release/ released].<br />
This update contains following components:<br />
* Better LM8UU mounting on Y axis<br />
* Better LM8UUs and smooth rods<br />
* Better P.I.N.D.A. probe mount<br />
* Improved cable stress relief on extruder<br />
* Better electronics cover<br />
<br />
MK2 users are able to get upgrade kit for $49.<br />
When this upgrade has been announced, new shipments of the MK2 was automatically upgraded to MK2"S".<br />
<br />
=== MK3 and MK2.5 upgrade (February 2018) ===<br />
<br />
Following the release of the [[Prusa i3 MK3]], Prusa3D released two upgrade kits - a full MK3 upgrade and a partial MK2.5 upgrade. The MK2.5 upgrade offers most of the functionality of the MK3 (except power panic, a more rigid frame, a taller Z axis and smoother stepper drivers) for about 1/3 of the price,because a full MK3 upgrade requires all electronics to be swapped out for 24V variants. <br />
<br />
Further development of the MK2.5 is identical to MK3 in most aspects, using just slightly modified printed parts and firmware. <br />
<br />
=== MK2/S discontinued (February 2019) ===<br />
In the MK3S release announcement, Prusa stated that the MK2S is no longer being produced and that stocks are dwindling. The MK2S can no longer be ordered from Prusa. <br />
<br />
== Printed Parts ==<br />
<br />
[[OpenSCAD]] files for the printed parts are available on the [https://github.com/prusa3d/Orignal-Prusa-i3/tree/MK2 Github repository] or [https://www.prusa3d.com/prusa-i3-printable-parts/ Prusa Research].<br />
<br />
== Electronics ==<br />
=== Power ===<br />
<br />
The original printer runs on 12V.<br />
<br />
=== Inductive proximity sensor (PINDA) ===<br />
<br />
The original printer uses a custom - made "PINDA probe". It is a 5V NPN normally closed inductive proximity sensor. The probe is 35mm long and has an M8 thread on the outside. It has a 4mm sensing range with 3% repeat accuracy and a 1000/s sample rate.<br />
<br />
=== Stepper Motors ===<br />
<br />
The Prusa i3 MK2 uses, including the extruder, 5 NEMA17 stepper motors. Two of these motors, the Z axis motors, are connected to the same stepper driver of the electronics and have integrated trapezoid leadscrews. <br />
<br />
=== Controller Electronics ===<br />
<br />
In it's original configuration Prusa i3 MK2 is using RAMBo mini board from Ultimachine.<br />
<br />
=== [[Extruder]] ===<br />
<br />
Prusa i3 MK2 extruder is designed around E3D V6 hotend. It uses a 38mm NEMA17 stepper motor with a hobbled gear mounted directly to the motor's shaft. <br />
<br />
=== Heated Bed ===<br />
<br />
The Prusa i3 MK2 was released together with PCB Heatbed MK42. There is a PEI sheet glued on top of the PCB for print adhesion. There 9 metal discs embedded in the heatbed that serve as measuring points for the inductive sensor. The measuring points are placed in a grid pattern and the printer can compensate for a warped bed after measuring the height of every measuring point compared to the others.</div>Matej101https://reprap.org/mediawiki/index.php?title=Prusa_i3_MK3&diff=185017Prusa i3 MK32019-02-26T15:42:55Z<p>Matej101: Clarified filament sensor with new information</p>
<hr />
<div>{{Languages|Prusa i3 MK3}}<br />
[[Category:Prusa i3| ]]<br />
{{RepRapNavigation|name=Prusa i3 MK3}}<br />
<br />
{{Development<br />
|name = Prusa i3 MK3<br />
|status = working<br />
|image = Prusai3-MK3.jpg<br />
|description = Prusa i3 MK3 is a design by Josef Prusa.<br />
|license = [[GPL]]<br />
|author = Prusajr<br />
|reprap = Prusa i3 MK2<br />
|categories =<br />
[[:Category:Prusa i3|Prusa i3]],<br />
{{tag|Prusa i3 Development}},<br />
{{tag|Prusa Mendel Development}},<br />
{{tag|Prusa Mendel}},<br />
{{tag|Mendel Variations}},<br />
{{tag|Cartesian-XZ-head}}<br />
|url = [https://github.com/prusa3d/Original-Prusa-i3/ Github] <br />
}}The Prusa i3 (iteration 3) MK3 is the newest and most current 3D Printer design by RepRap Core Developer Prusajr. The i3 MK3 incorporates lessons learned from the previous Prusa designs.<br />
See also [[Prusa Mendel (iteration 2)]].<br />
<br />
{{Note | Derivates | The Prusa i3 is a very popular design, which led to many people creating derivates. We list these derivates in [[:Category: Prusa i3 Derivate]]. Also check [http://reprap.org/wiki/Prusa_i3_Variants the Prusa i3 Variants page], as well as [http://reprap.org/wiki/Category:Prusa_i3_Development the Prusa i3 Development page]}}<br />
&nbsp;<br />
<br />
== Main improvements ==<br />
The following is a list of the main improvements from MK2S.<br />
<br />
* Filament sensor<br />
* Power Panic<br />
* RPM sensing fans and Noctua fan<br />
* Ambient thermistor and P.I.N.D.A 2 with thermistor<br />
* EINSY Rambo motherboard<br />
* Trinamic 2130 drivers with layer shift detection, faster and silent printing<br />
* New robust Y axis made out of aluminium profiles<br />
* Bondtech hobbed gears<br />
* Magnetic MK52 Heatbed<br />
* Powder coated PEI spring steel print sheet<br />
* Ready for OctoPrint<br />
<br />
== History ==<br />
<br />
=== Offical kit available (Sep 2017) ===<br />
<br />
In May 2016, the MK3 has been [https://www.prusaprinters.org/original-prusa-i3-mk3-bloody-smart/ announced by Prusa] with the phrases of "IT'S BLOODY SMART!".<br />
<br />
=== B7/R3 extruder parts released (Jul 2018) ===<br />
<br />
In July 2018, Prusa3d released a new updated extruder with better airflow for both fans. The new parts are available on Prusa's website and on the github page.<br />
<br />
=== Multi material upgrade 2.0 (August 2018) ===<br />
<br />
In August 2018, Prusa started shipping the MMU2.0. The upgrade consists of five spoolholders with bowden tubing and a filament switching mechanism on the top of the printer frame. The upgrade makes the printer capable of using up to five materials in the same print with just a single direct drive extruder and one hotend. The switching mechanism has it's own custom control board based on Atmega 32u4.<br />
<br />
=== Textile wrap upgrade + more B7/R3 parts (Nov 2018) ===<br />
<br />
Since November 2018, the MK3's have been shipping with a textile sleeve wtlrap for the cables instead of the previous spiral wrap. The textile wrap is supposed to make the wires last longer. <br />
New B7/R3 parts have been released:<br />
<br />
a new Einsy RAMBo case with better and easier to usd cable mouunts and an add on slot for Octoprint<br />
<br />
an updated x axis that is easier to assemble<br />
<br />
reinforced y axis parts (the previous version sometimes cracked during assembly) <br />
<br />
reinforced Z motor holders<br />
<br />
=== MK3S and MMU2S released(Feb 2019) ===<br />
<br />
In February 2019, Prusa3d released a new version of the MK3 called MK3S. The upgrade swaps out the previously used unreliable laser filament sensor for an IR one (thus requiring a complete extruder redesign) and improves the Y axis tensioning system. The new printed parts are designated C1/R4. As with MK2S, all new orders ship with this upgrade already in place. Prusa offers the upgrade for $24.2. <br />
The MMU2S upgrade is free for all MMU2 owners and consists of a redesigned extruder that prevents jamming and a filament buffer that prevents tangling. It also includes the MK3S upgrade. New orders of the Multi material upgrade from now on ship pre-upgraded to MMU2S.<br />
<br />
== Printed Parts ==<br />
<br />
The STL files are available on [https://www.prusa3d.com/prusa-i3-printable-parts/ Prusa Research].<br />
The SCAD and some STEP files are available on [https://github.com/prusa3d/Original-Prusa-i3/tree/MK3?files=1 Github] <br />
<br />
== Electronics ==<br />
=== Power ===<br />
<br />
Unlike previous Prusa machines, the MK3 runs on 24 volts. The fans run on 5V supplied by the mainboard. <br />
<br />
=== Mainboard ===<br />
<br />
The printer uses [[EinsyRambo]] as the main controller. <br />
<br />
=== Filament sensor ===<br />
<br />
This optical filament encoder is sensing the movement of the filament.<br />
So the printer can detect not only filament outage, but also a jammed nozzle.<br />
In addition, you can use filament auto loading function with this sensor.<br />
<br />
MK3 uses a laser filament sensor aimed directly at the filament, which proved unreliable because different filament reflected the laser in different ways. <br />
<br />
In the MK3S extruder, the filament moves aside a bearing ball which presses a small lever, triggering an infrared laser sensor. In this design, the sensor functions the same way a normally closed micro switch would, so the sensor cannot sense if the filament is moving or not. <br />
<br />
=== Z endstop/bed leveling sensor (PINDA 2) ===<br />
<br />
The printer uses an 8mm NPN inductive proximity sensor for bed leveling and as a z axis endstop. The heated bed has nine chunks of metal embedded in it in a grid pattern for automatic bed warp compensation. <br />
Normally, inductive probes have different triggering distances with different temperatures. The probe has an integrated thermistor to help the board compensate for that. <br />
<br />
=== Extruder ===<br />
<br />
[[Extruder]]<br />
<br />
The extruder uses Bontech drive gears and an E3d V6 hotend with the standard e3d thermistor (Semitec 104GT), a 24V 40W heater and a 0.4mm brass nozzle. The extruder is a direct drive one, the Bondtech gear is mounted directly to the motor shaft. <br />
<br />
===Heated Bed===<br />
<br />
The printer uses a custom MK52 heatbed. The bed is made out of very thick PCB with 27 embedded magnets. The magnets hold a removable sheet of spring steel that is either powder coated with PEI or has a replacable PEI sheet glued to it. The steel sheets can be removed immidiatelly after a print stops and a new sheet can be inserted, resulting in faster printing in large quantities. After the printed objects cool down, they can be easily removed just by flexing the sheet.</div>Matej101https://reprap.org/mediawiki/index.php?title=Prusa_i3_MK2&diff=185002Prusa i3 MK22019-02-23T16:03:40Z<p>Matej101: Wording</p>
<hr />
<div>{{Languages|Prusa i3 MK2}}<br />
[[Category:Prusa i3| ]]<br />
{{RepRapNavigation|name=Prusa i3 MK2}}<br />
<br />
{{Development<br />
|name = Prusa i3 MK2<br />
|status = working<br />
|image = Prusai3-MK2.jpg<br />
|description = Prusa i3 MK2 is a design by Josef Prusa.<br />
|license = [[GPL]]<br />
|author = Prusajr<br />
|reprap = Prusa i3<br />
|categories =<br />
[[:Category:Prusa i3|Prusa i3]],<br />
{{tag|Prusa i3 Development}},<br />
{{tag|Prusa Mendel Development}},<br />
{{tag|Prusa Mendel}},<br />
{{tag|Mendel Variations}},<br />
{{tag|Cartesian-XZ-head}}<br />
[https://github.com/prusa3d/Original-Prusa-i3 Github]<br />
}}The Prusa i3 (iteration 3) MK2 is the most popular 3D Printer design by RepRap Core Developer Prusajr. The i3 MK2 incorporates lessons learned from the previous three Prusa designs.<br />
See also: [[Prusa Mendel (iteration 2)]], [[Prusa i3 MK3]].<br />
<br />
{{Note | Derivates | The Prusa i3 is a very popular design, which led to many people creating derivates. We list these derivates in [[:Category: Prusa i3 Derivate]]. Also check [http://reprap.org/wiki/Prusa_i3_Variants the Prusa i3 Variants page], as well as [http://reprap.org/wiki/Category:Prusa_i3_Development the Prusa i3 Development page]}}<br />
&nbsp;<br />
<br />
== Main improvements ==<br />
The following is a list of the main improvements made upon the Prusa Mendel Iteration 3<br />
<br />
* Enhanced frame rigidity by conection the Y axis to the PSU cover.<br />
* Easy assembly<br />
* Bigger build area (250x210x200mm)<br />
* Zoned PCB heatbed MK42<br />
* Better Z motors<br />
* Automatic bed leveling with an inductive proximity sensor<br />
<br />
== Development ==<br />
The development of the Prusa i3 MK2 is hosted on github: https://github.com/prusa3d/Orignal-Prusa-i3/tree/MK2.<br />
<br />
== History ==<br />
<br />
=== Offical kit available (May 2016) ===<br />
<br />
In May 2016, the official kit became [http://shop.prusa3d.com/en/3d-printers/59-original-prusa-i3-mk2-kit.html available from Prusa].<br />
<br />
=== Multi Material upgrade available (September 2016) ===<br />
<br />
Multi Material kit has been [https://www.prusaprinters.org/original-prusa-i3-mk2-multi-material-upgrade-release/ released in September 2016].<br />
<br />
This kit allows you to print not only just one filament, but also 2-4 colors simultaneously.<br />
Since multi material extruders take huge place on the X-axis, prusa decided to use Bowden type extruders instead of direct drive system.<br />
<br />
=== MK2S has been available (March 2017) ===<br />
<br />
In March 2017, the MK2S has been [https://www.prusaprinters.org/original-prusa-i3-mk2s-release/ released].<br />
This update contains following components:<br />
* Better LM8UU mounting on Y axis<br />
* Better LM8UUs and smooth rods<br />
* Better P.I.N.D.A. probe mount<br />
* Improved cable stress relief on extruder<br />
* Better electronics cover<br />
<br />
MK2 users are able to get upgrade kit for $49.<br />
When this upgrade has been announced, new shipments of the MK2 was automatically upgraded to MK2"S".<br />
<br />
=== MK3 and MK2.5 upgrade (February 2018) ===<br />
<br />
Following the release of the [[Prusa i3 Mk3]], Prusa3D released two upgrade kits - a full MK3 upgrade and a partial MK2.5 upgrade. The MK2.5 upgrade offers most of the functionality of the MK3 (except power panic, a more rigid frame, a taller Z axis and smoother stepper drivers) for about 1/3 of the price,because a full MK3 upgrade requires all electronics to be swapped out for 24V variants. <br />
<br />
Further development of the MK2.5 is identical to MK3 in most aspects, using just slightly modified printed parts and firmware. <br />
<br />
=== MK2/S discontinued (February 2019) ===<br />
In the MK3S release announcement, Prusa stated that the MK2S is no longer being produced and that stocks are dwindling. The MK2S can no longer be ordered from Prusa. <br />
<br />
== Printed Parts ==<br />
<br />
[[OpenSCAD]] files for the printed parts are available on the [https://github.com/prusa3d/Orignal-Prusa-i3/tree/MK2 Github repository] or [https://www.prusa3d.com/prusa-i3-printable-parts/ Prusa Research].<br />
<br />
== Electronics ==<br />
=== Power ===<br />
<br />
The original printer runs on 12V.<br />
<br />
=== Inductive proximity sensor (PINDA) ===<br />
<br />
The original printer uses a custom - made "PINDA probe". It is a 5V NPN normally closed inductive proximity sensor. The probe is 35mm long and has an M8 thread on the outside. It has a 4mm sensing range with 3% repeat accuracy and a 1000/s sample rate.<br />
<br />
=== Stepper Motors ===<br />
<br />
The Prusa i3 MK2 uses, including the extruder, 5 NEMA17 stepper motors. Two of these motors, the Z axis motors, are connected to the same stepper driver of the electronics and have integrated trapezoid leadscrews. <br />
<br />
=== Controller Electronics ===<br />
<br />
In it's original configuration Prusa i3 MK2 is using RAMBo mini board from Ultimachine.<br />
<br />
=== [[Extruder]] ===<br />
<br />
Prusa i3 MK2 extruder is designed around E3D V6 hotend. It uses a 38mm NEMA17 stepper motor with a hobbled gear mounted directly to the motor's shaft. <br />
<br />
=== Heated Bed ===<br />
<br />
The Prusa i3 MK2 was released together with PCB Heatbed MK42. There is a PEI sheet glued on top of the PCB for print adhesion. There 9 metal discs embedded in the heatbed that serve as measuring points for the inductive sensor. The measuring points are placed in a grid pattern and the printer can compensate for a warped bed after measuring the height of every measuring point compared to the others.</div>Matej101https://reprap.org/mediawiki/index.php?title=Prusa_i3_MK2&diff=185001Prusa i3 MK22019-02-23T15:58:00Z<p>Matej101: Updated the history section, added Inductive probe, power and added information to heatbed section.</p>
<hr />
<div>{{Languages|Prusa i3 MK2}}<br />
[[Category:Prusa i3| ]]<br />
{{RepRapNavigation|name=Prusa i3 MK2}}<br />
<br />
{{Development<br />
|name = Prusa i3 MK2<br />
|status = working<br />
|image = Prusai3-MK2.jpg<br />
|description = Prusa i3 MK2 is a design by Josef Prusa.<br />
|license = [[GPL]]<br />
|author = Prusajr<br />
|reprap = Prusa i3<br />
|categories =<br />
[[:Category:Prusa i3|Prusa i3]],<br />
{{tag|Prusa i3 Development}},<br />
{{tag|Prusa Mendel Development}},<br />
{{tag|Prusa Mendel}},<br />
{{tag|Mendel Variations}},<br />
{{tag|Cartesian-XZ-head}}<br />
[https://github.com/prusa3d/Original-Prusa-i3 Github]<br />
}}The Prusa i3 (iteration 3) MK2 is the most popular 3D Printer design by RepRap Core Developer Prusajr. The i3 MK2 incorporates lessons learned from the previous three Prusa designs.<br />
See also: [[Prusa Mendel (iteration 2)]], [[Prusa i3 MK3]].<br />
<br />
{{Note | Derivates | The Prusa i3 is a very popular design, which led to many people creating derivates. We list these derivates in [[:Category: Prusa i3 Derivate]]. Also check [http://reprap.org/wiki/Prusa_i3_Variants the Prusa i3 Variants page], as well as [http://reprap.org/wiki/Category:Prusa_i3_Development the Prusa i3 Development page]}}<br />
&nbsp;<br />
<br />
== Main improvements ==<br />
The following is a list of the main improvements made upon the Prusa Mendel Iteration 3<br />
<br />
* Enhanced frame rigidity by conection the Y axis to the PSU cover.<br />
* Easy assembly<br />
* Bigger build area (250x210x200mm)<br />
* Zoned PCB heatbed MK42<br />
* Better Z motors<br />
* Automatic bed leveling with an inductive proximity sensor<br />
<br />
== Development ==<br />
The development of the Prusa i3 MK2 is hosted on github: https://github.com/prusa3d/Orignal-Prusa-i3/tree/MK2.<br />
<br />
== History ==<br />
<br />
=== Offical kit available (May 2016) ===<br />
<br />
In May 2016, the official kit became [http://shop.prusa3d.com/en/3d-printers/59-original-prusa-i3-mk2-kit.html available from Prusa].<br />
<br />
=== Multi Material upgrade available (September 2016) ===<br />
<br />
Multi Material kit has been [https://www.prusaprinters.org/original-prusa-i3-mk2-multi-material-upgrade-release/ released in September 2016].<br />
<br />
This kit allows you to print not only just one filament, but also 2-4 colors simultaneously.<br />
Since multi material extruders take huge place on the X-axis, prusa decided to use Bowden type extruders instead of direct drive system.<br />
<br />
=== MK2S has been available (March 2017) ===<br />
<br />
In March 2017, the MK2S has been [https://www.prusaprinters.org/original-prusa-i3-mk2s-release/ released].<br />
This update contains following components:<br />
* Better LM8UU mounting on Y axis<br />
* Better LM8UUs and smooth rods<br />
* Better P.I.N.D.A. probe mount<br />
* Improved cable stress relief on extruder<br />
* Better electronics cover<br />
<br />
MK2 users are able to get upgrade kit for $49.<br />
When this upgrade has been announced, new shipments of the MK2 was automatically upgraded to MK2"S".<br />
<br />
=== MK3 and MK2.5 upgrade (February 2018) ===<br />
<br />
Following the release of the [[Prusa i3 Mk3]], Prusa3D released two upgrade kits - a full MK3 upgrade and a partial MK2.5 upgrade. The MK2.5 upgrade offers most of the functionality of the MK3 (except power panic, a more rigid frame, a taller Z axis and smoother stepper drivers) for about 1/3 of the price,because a full MK3 upgrade requires all electronics to be swapped out for 24V variants. <br />
<br />
Further development is identical to MK3 in most aspects, using just slightly modified printed parts and firmware. <br />
<br />
=== MK2/S discontinued (February 2019) ===<br />
In the MK3S release announcement, Prusa stated that the MK2S is no longer being produced and that stocks are dwindling. The MK2S can no longer be ordered from Prusa. <br />
<br />
== Printed Parts ==<br />
<br />
[[OpenSCAD]] files for the printed parts are available on the [https://github.com/prusa3d/Orignal-Prusa-i3/tree/MK2 Github repository] or [https://www.prusa3d.com/prusa-i3-printable-parts/ Prusa Research].<br />
<br />
== Electronics ==<br />
=== Power ===<br />
<br />
The original printer runs on 12V.<br />
<br />
=== Inductive proximity sensor (PINDA) ===<br />
<br />
The original printer uses a custom - made "PINDA probe". It is a 5V NPN normally closed inductive proximity sensor. The probe is 35mm long and has an M8 thread on the outside. It has a 4mm sensing range with 3% repeat accuracy and a 1000/s sample rate.<br />
<br />
=== Stepper Motors ===<br />
<br />
The Prusa i3 MK2 uses, including the extruder, 5 NEMA17 stepper motors. Two of these motors, the Z axis motors, are connected to the same stepper driver of the electronics and have integrated trapezoid leadscrews. <br />
<br />
=== Controller Electronics ===<br />
<br />
In it's original configuration Prusa i3 MK2 is using RAMBo mini board from Ultimachine.<br />
<br />
=== [[Extruder]] ===<br />
<br />
Prusa i3 MK2 extruder is designed around E3D V6 hotend. It uses a 38mm NEMA17 stepper motor with a hobbled gear mounted directly to the motor's shaft. <br />
<br />
=== Heated Bed ===<br />
<br />
The Prusa i3 MK2 was released together with PCB Heatbed MK42. There is a PEI sheet glued on top of the PCB for print adhesion. There 9 metal discs embedded in the heatbed that serve as measuring points for the inductive sensor. The measuring points are placed in a grid pattern and the printer can compensate for a warped bed after measuring the height of every measuring point compared to the others.</div>Matej101https://reprap.org/mediawiki/index.php?title=Prusa_i3_MK3&diff=185000Prusa i3 MK32019-02-23T15:09:01Z<p>Matej101: Fixed typo</p>
<hr />
<div>{{Languages|Prusa i3 MK3}}<br />
[[Category:Prusa i3| ]]<br />
{{RepRapNavigation|name=Prusa i3 MK3}}<br />
<br />
{{Development<br />
|name = Prusa i3 MK3<br />
|status = working<br />
|image = Prusai3-MK3.jpg<br />
|description = Prusa i3 MK3 is a design by Josef Prusa.<br />
|license = [[GPL]]<br />
|author = Prusajr<br />
|reprap = Prusa i3 MK2<br />
|categories =<br />
[[:Category:Prusa i3|Prusa i3]],<br />
{{tag|Prusa i3 Development}},<br />
{{tag|Prusa Mendel Development}},<br />
{{tag|Prusa Mendel}},<br />
{{tag|Mendel Variations}},<br />
{{tag|Cartesian-XZ-head}}<br />
|url = [https://github.com/prusa3d/Original-Prusa-i3/ Github] <br />
}}The Prusa i3 (iteration 3) MK3 is the newest and most current 3D Printer design by RepRap Core Developer Prusajr. The i3 MK3 incorporates lessons learned from the previous Prusa designs.<br />
See also [[Prusa Mendel (iteration 2)]].<br />
<br />
{{Note | Derivates | The Prusa i3 is a very popular design, which led to many people creating derivates. We list these derivates in [[:Category: Prusa i3 Derivate]]. Also check [http://reprap.org/wiki/Prusa_i3_Variants the Prusa i3 Variants page], as well as [http://reprap.org/wiki/Category:Prusa_i3_Development the Prusa i3 Development page]}}<br />
&nbsp;<br />
<br />
== Main improvements ==<br />
The following is a list of the main improvements from MK2S.<br />
<br />
* Filament sensor<br />
* Power Panic<br />
* RPM sensing fans and Noctua fan<br />
* Ambient thermistor and P.I.N.D.A 2 with thermistor<br />
* EINSY Rambo motherboard<br />
* Trinamic 2130 drivers with layer shift detection, faster and silent printing<br />
* New robust Y axis made out of aluminium profiles<br />
* Bondtech hobbed gears<br />
* Magnetic MK52 Heatbed<br />
* Powder coated PEI spring steel print sheet<br />
* Ready for OctoPrint<br />
<br />
== History ==<br />
<br />
=== Offical kit available (Sep 2017) ===<br />
<br />
In May 2016, the MK3 has been [https://www.prusaprinters.org/original-prusa-i3-mk3-bloody-smart/ announced by Prusa] with the phrases of "IT'S BLOODY SMART!".<br />
<br />
=== B7/R3 extruder parts released (Jul 2018) ===<br />
<br />
In July 2018, Prusa3d released a new updated extruder with better airflow for both fans. The new parts are available on Prusa's website and on the github page.<br />
<br />
=== Multi material upgrade 2.0 (August 2018) ===<br />
<br />
In August 2018, Prusa started shipping the MMU2.0. The upgrade consists of five spoolholders with bowden tubing and a filament switching mechanism on the top of the printer frame. The upgrade makes the printer capable of using up to five materials in the same print with just a single direct drive extruder and one hotend. The switching mechanism has it's own custom control board based on Atmega 32u4.<br />
<br />
=== Textile wrap upgrade + more B7/R3 parts (Nov 2018) ===<br />
<br />
Since November 2018, the MK3's have been shipping with a textile sleeve wtlrap for the cables instead of the previous spiral wrap. The textile wrap is supposed to make the wires last longer. <br />
New B7/R3 parts have been released:<br />
<br />
a new Einsy RAMBo case with better and easier to usd cable mouunts and an add on slot for Octoprint<br />
<br />
an updated x axis that is easier to assemble<br />
<br />
reinforced y axis parts (the previous version sometimes cracked during assembly) <br />
<br />
reinforced Z motor holders<br />
<br />
=== MK3S and MMU2S released(Feb 2019) ===<br />
<br />
In February 2019, Prusa3d released a new version of the MK3 called MK3S. The upgrade swaps out the previously used unreliable laser filament sensor for an IR one (thus requiring a complete extruder redesign) and improves the Y axis tensioning system. The new printed parts are designated C1/R4. As with MK2S, all new orders ship with this upgrade already in place. Prusa offers the upgrade for $24.2. <br />
The MMU2S upgrade is free for all MMU2 owners and consists of a redesigned extruder that prevents jamming and a filament buffer that prevents tangling. It also includes the MK3S upgrade. New orders of the Multi material upgrade from now on ship pre-upgraded to MMU2S.<br />
<br />
== Printed Parts ==<br />
<br />
The STL files are available on [https://www.prusa3d.com/prusa-i3-printable-parts/ Prusa Research].<br />
The SCAD and some STEP files are available on [https://github.com/prusa3d/Original-Prusa-i3/tree/MK3?files=1 Github] <br />
<br />
== Electronics ==<br />
=== Power ===<br />
<br />
Unlike previous Prusa machines, the MK3 runs on 24 volts. The fans run on 5V supplied by the mainboard. <br />
<br />
=== Mainboard ===<br />
<br />
The printer uses [[EinsyRambo]] as the main controller. <br />
<br />
=== Filament sensor ===<br />
<br />
This optical filament encoder is sensing the movement of the filament.<br />
So the printer can detect not only filament outage, but also a jammed nozzle.<br />
In addition, you can use filament auto loading function with this sensor.<br />
<br />
MK3 uses a laser filament sensor aimed directly at the filament, which proved unreliable because different filament reflected the laser in different ways. <br />
<br />
In the MK3S extruder, the filament moves aside a bearing ball which presses a small lever, triggering an infrared laser sensor.<br />
<br />
=== Z endstop/bed leveling sensor (PINDA 2) ===<br />
<br />
The printer uses an 8mm NPN inductive proximity sensor for bed leveling and as a z axis endstop. The heated bed has nine chunks of metal embedded in it in a grid pattern for automatic bed warp compensation. <br />
Normally, inductive probes have different triggering distances with different temperatures. The probe has an integrated thermistor to help the board compensate for that. <br />
<br />
=== Extruder ===<br />
<br />
[[Extruder]]<br />
<br />
The extruder uses Bontech drive gears and an E3d V6 hotend with the standard e3d thermistor (Semitec 104GT), a 24V 40W heater and a 0.4mm brass nozzle. The extruder is a direct drive one, the Bondtech gear is mounted directly to the motor shaft. <br />
<br />
===Heated Bed===<br />
<br />
The printer uses a custom MK52 heatbed. The bed is made out of very thick PCB with 27 embedded magnets. The magnets hold a removable sheet of spring steel that is either powder coated with PEI or has a replacable PEI sheet glued to it. The steel sheets can be removed immidiatelly after a print stops and a new sheet can be inserted, resulting in faster printing in large quantities. After the printed objects cool down, they can be easily removed just by flexing the sheet.</div>Matej101https://reprap.org/mediawiki/index.php?title=Prusa_i3_MK3&diff=184999Prusa i3 MK32019-02-23T15:07:08Z<p>Matej101: Added history and parts, changed some parts that were copied over from marketing material.</p>
<hr />
<div>{{Languages|Prusa i3 MK3}}<br />
[[Category:Prusa i3| ]]<br />
{{RepRapNavigation|name=Prusa i3 MK3}}<br />
<br />
{{Development<br />
|name = Prusa i3 MK3<br />
|status = working<br />
|image = Prusai3-MK3.jpg<br />
|description = Prusa i3 MK3 is a design by Josef Prusa.<br />
|license = [[GPL]]<br />
|author = Prusajr<br />
|reprap = Prusa i3 MK2<br />
|categories =<br />
[[:Category:Prusa i3|Prusa i3]],<br />
{{tag|Prusa i3 Development}},<br />
{{tag|Prusa Mendel Development}},<br />
{{tag|Prusa Mendel}},<br />
{{tag|Mendel Variations}},<br />
{{tag|Cartesian-XZ-head}}<br />
|url = [https://github.com/prusa3d/Original-Prusa-i3/ Github] <br />
}}The Prusa i3 (iteration 3) MK3 is the newest and most current 3D Printer design by RepRap Core Developer Prusajr. The i3 MK3 incorporates lessons learned from the previous Prusa designs.<br />
See also [[Prusa Mendel (iteration 2)]].<br />
<br />
{{Note | Derivates | The Prusa i3 is a very popular design, which led to many people creating derivates. We list these derivates in [[:Category: Prusa i3 Derivate]]. Also check [http://reprap.org/wiki/Prusa_i3_Variants the Prusa i3 Variants page], as well as [http://reprap.org/wiki/Category:Prusa_i3_Development the Prusa i3 Development page]}}<br />
&nbsp;<br />
<br />
== Main improvements ==<br />
The following is a list of the main improvements from MK2S.<br />
<br />
* Filament sensor<br />
* Power Panic<br />
* RPM sensing fans and Noctua fan<br />
* Ambient thermistor and P.I.N.D.A 2 with thermistor<br />
* EINSY Rambo motherboard<br />
* Trinamic 2130 drivers with layer shift detection, faster and silent printing<br />
* New robust Y axis made out of aluminium profiles<br />
* Bondtech hobbed gears<br />
* Magnetic MK52 Heatbed<br />
* Powder coated PEI spring steel print sheet<br />
* Ready for OctoPrint<br />
<br />
== History ==<br />
<br />
=== Offical kit available (Sep 2017) ===<br />
<br />
In May 2016, the MK3 has been [https://www.prusaprinters.org/original-prusa-i3-mk3-bloody-smart/ announced by Prusa] with the phrases of "IT'S BLOODY SMART!".<br />
<br />
=== B7/R3 extruder parts released (Jul 2018) ===<br />
<br />
In July 2018, Prusa3d released a new updated extruder with better airflow for both fans. The new parts are available on Prusa's website and on the github page.<br />
<br />
=== Multi material upgrade 2.0 (August 2018) ===<br />
<br />
In August 2018, Prusa started shipping the MMU2.0. The upgrade consists of five spoolholders with bowden tubing and a filament switching mechanism on the top of the printer frame. The upgrade makes the printer capable of using up to five materials in the same print with just a single direct drive extruder and one hotend. The switching mechanism has it's own custom control board based on Atmega 32u4.<br />
<br />
=== Textile wrap upgrade + more B7/R3 parts (Nov 2018) ===<br />
<br />
Since November 2018, the MK3's have been shipping with a textile sleeve wtlrap for the cables instead of the previous spiral wrap. The textile wrap is supposed to make the wires last longer. <br />
New B7/R3 parts have been released:<br />
<br />
a new Einsy RAMBo case with better and easier to usd cable mouunts and an add on slot for Octoprint<br />
<br />
an updated x axis that is easier to assemble<br />
<br />
reinforced y axis parts (the previous version sometimes cracked during assembly) <br />
<br />
reinforced Z motor holders<br />
<br />
=== MK3S and MMU2S released(Feb 2019) ===<br />
<br />
In February 2019, Prusa3d released a new version of the MK3 called MK3S. The upgrade swaps out the previously used unreliable laser filament sensor for an IR one (thus requiring a complete extruder redesign) and improves the Y axis tensioning system. The new printed parts are designated C1/R4. As with MK2S, all new orders ship with this upgrade already in place. Prusa offers the upgrade for $24.2. <br />
The MMU2S upgrade is free for all MMU2 owners and consists of a redesigned extruder that prevents jamming and a filament buffer that prevents tangling. It also includes the MK3S upgrade. New orders of the Multi material upgrade from now on ship pre-upgraded to MMU2S.<br />
<br />
== Printed Parts ==<br />
<br />
The STL files are available on [https://www.prusa3d.com/prusa-i3-printable-parts/ Prusa Research].<br />
The SCAD and some STEP files are available on [https://github.com/prusa3d/Original-Prusa-i3/tree/MK3?files=1 Github] <br />
<br />
== Electronics ==<br />
=== Power ===<br />
<br />
Unlike previous Prusa machines, the MK3 runs on 24 volts. The fans run on 5V supplied by the mainboard. <br />
<br />
=== Mainboard ===<br />
<br />
The printer uses [[Einsy Rambo]] as the main controller. <br />
<br />
=== Filament sensor ===<br />
<br />
This optical filament encoder is sensing the movement of the filament.<br />
So the printer can detect not only filament outage, but also a jammed nozzle.<br />
In addition, you can use filament auto loading function with this sensor.<br />
<br />
MK3 uses a laser filament sensor aimed directly at the filament, which proved unreliable because different filament reflected the laser in different ways. <br />
<br />
In the MK3S extruder, the filament moves aside a bearing ball which presses a small lever, triggering an infrared laser sensor.<br />
<br />
=== Z endstop/bed leveling sensor (PINDA 2) ===<br />
<br />
The printer uses an 8mm NPN inductive proximity sensor for bed leveling and as a z axis endstop. The heated bed has nine chunks of metal embedded in it in a grid pattern for automatic bed warp compensation. <br />
Normally, inductive probes have different triggering distances with different temperatures. The probe has an integrated thermistor to help the board compensate for that. <br />
<br />
=== Extruder ===<br />
<br />
[[Extruder]]<br />
<br />
The extruder uses Bontech drive gears and an E3d V6 hotend with the standard e3d thermistor (Semitec 104GT), a 24V 40W heater and a 0.4mm brass nozzle. The extruder is a direct drive one, the Bondtech gear is mounted directly to the motor shaft. <br />
<br />
===Heated Bed===<br />
<br />
The printer uses a custom MK52 heatbed. The bed is made out of very thick PCB with 27 embedded magnets. The magnets hold a removable sheet of spring steel that is either powder coated with PEI or has a replacable PEI sheet glued to it. The steel sheets can be removed immidiatelly after a print stops and a new sheet can be inserted, resulting in faster printing in large quantities. After the printed objects cool down, they can be easily removed just by flexing the sheet.</div>Matej101https://reprap.org/mediawiki/index.php?title=Prusa_i3_MK3&diff=184990Prusa i3 MK32019-02-23T12:35:22Z<p>Matej101: Fixed the github link so it actually links to mk3 parts</p>
<hr />
<div>{{Languages|Prusa i3 MK3}}<br />
[[Category:Prusa i3| ]]<br />
{{RepRapNavigation|name=Prusa i3 MK3}}<br />
<br />
{{Development<br />
|name = Prusa i3 MK3<br />
|status = working<br />
|image = Prusai3-MK3.jpg<br />
|description = Prusa i3 MK3 is a design by Josef Prusa.<br />
|license = [[GPL]]<br />
|author = Prusajr<br />
|reprap = Prusa i3 MK2<br />
|categories =<br />
[[:Category:Prusa i3|Prusa i3]],<br />
{{tag|Prusa i3 Development}},<br />
{{tag|Prusa Mendel Development}},<br />
{{tag|Prusa Mendel}},<br />
{{tag|Mendel Variations}},<br />
{{tag|Cartesian-XZ-head}}<br />
|url = [https://github.com/prusa3d/Original-Prusa-i3/tree/MK3?files=1] <br />
}}The Prusa i3 (iteration 3) MK3 is the newest and most current 3D Printer design by RepRap Core Developer Prusajr. The i3 MK3 incorporates lessons learned from the previous Prusa designs.<br />
See also [[Prusa Mendel (iteration 2)]].<br />
<br />
{{Note | Derivates | The Prusa i3 is a very popular design, which led to many people creating derivates. We list these derivates in [[:Category: Prusa i3 Derivate]]. Also check [http://reprap.org/wiki/Prusa_i3_Variants the Prusa i3 Variants page], as well as [http://reprap.org/wiki/Category:Prusa_i3_Development the Prusa i3 Development page]}}<br />
&nbsp;<br />
<br />
== Main improvements ==<br />
The following is a list of the main improvements from MK2S.<br />
<br />
* Filament sensor<br />
* Power Panic<br />
* RPM sensing fans and Noctua fan<br />
* Ambient thermistor and P.I.N.D.A 2 with thermistor<br />
* EINSY Rambo motherboard<br />
* Trinamic 2130 drivers with layer shift detection, faster and silent printing<br />
* New robust Y axis<br />
* Bondtech extruder<br />
* Magnetic MK52 Heatbed<br />
* Powder coated PEI spring steel print sheet<br />
* Ready for OctoPrint<br />
<br />
== History ==<br />
<br />
=== Offical kit available (Sep 2017) ===<br />
<br />
In May 2016, the MK3 has been [https://www.prusaprinters.org/original-prusa-i3-mk3-bloody-smart/ announced by Prusa] with the phrases of "IT'S BLOODY SMART!".<br />
<br />
== Printed Parts ==<br />
<br />
The STL files are available on [https://www.prusa3d.com/prusa-i3-printable-parts/ Prusa Research].<br />
<br />
== Electronics ==<br />
=== Filament sensor ===<br />
<br />
This optical filament encoder is sensing the movement of the filament.<br />
So the printer can detect not only filament outage, but also a jammed nozzle.<br />
In addition, you can use filament auto loading function with this sensor.<br />
<br />
=== TMC2130 Stepper drivers ===<br />
<br />
TMC2130 drivers make this printer extremely quiet with its 256 micro-stepping.<br />
Differ from the TMC2100, it can detect layer shifting, and pause the print.<br />
<br />
=== Extruder ===<br />
<br />
[[Extruder]]<br />
<br />
Prusa i3 MK3 extruder is a perfect combination of E3D V6 hotend and Bondtech drive gears.<br />
<br />
===Heated Bed===<br />
<br />
Brand new design of MK52 makes us easier to remove the print from bed with its magnetic steel print sheet.<br />
You just need to flex the sheet.</div>Matej101