Prusa i3 Build Manual
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Boxed style Frame Style
In the future this page might contain a tutorial until then a tutorial for the boxed frame style prusa i3 by Kliment: http://78.47.92.212/i3_documentation_pics/
http://koti.kapsi.fi/~kliment/photos/i3/ http://koti.kapsi.fi/~kliment/photos/prusa3/
Single Sheet Frame Style
There is no tutorial for the Single Sheet Frame style Prusa i3 however the X axis, X cariage and Y frame and bed are mostly the same.
JBFromOZ - preparing to build an aluminium frame prusa i3.
Rod lengths are listed here http://titanpad.com/bU77NESnMC.
Prusa i1/i2 smooth rod lengths should be usable for an i3 single-plate reprap.
Instructions on the github say to RP each part in the single-plate folder. I believe this instruction applies to the box frame version only, some items need more than 1 copy.
It is not yet 100% clear which extruder to use, there is a dual extruder and a compact extruder in the branch though neither looks complete. there is also a Greg's adapter in the /mini/extruder/greg-wade folder, it uses the nuts_and_bolts.scad which needs to be copied to the openscad library folder.
I am planning to use a MGS extruder with a Nema17 stepper, designs from Sound are shown from his i3-unterwelt branch
Build photos from EiNSTieN's build record, including some additional reference to his edits for 608 bearings, GT2 belts, dual extruders etc.
Y PCB Aluminium frame is connected to LM8UU's with zipties, no RP parts required (as per nateplate style attachment)
| Description | Qty | Image |
| RP Parts | located in Prusa/single_plate folder | |
| z-axis-top.scad | 1 | |
| z-axis-bottom.scad | 1 | |
| y-motor.scad | 1 | |
| y-idler.scad | 1 | |
| y-corners.scad | 4 | |
| y-belt-holder.scad | 1 | |
| x-end-motor.scad | 1 | |
| x-end-idler.scad | 1 | |
| x-carriage.scad | 1 | |
| magnetic-holder.scad (used for hall effect sensors / endstops) | 2 | |
| fan-mount.scad | 1 | |
| belt-guide.scad (suit 623 bearing) | 4 | |
| Extruder options | not complete documentation at this stage | |
| gregs-wade.scad (in box_frame/extras folder) | 1 (???) | |
| greg-adapter.scad (in mini/extruder/greg-wade folder) | 1 (???) | |
| dual-extruder.scad (deprecated - experimental) | 1 (???) | |
| compact-extruder.scad (experimental - likely to be replaced by nema17 extruder) | 1 (???) | |
| EiNSTeiN branch | master branch of i3 single-frame parts by EiNSTeiN: master at https://github.com/EiNSTeiN-/Prusa3/ | |
| platter.scad (EiNSTeiN variant) single plate for i3 | 1 | |
| compact-extruder.scad (EiNSTeiN variant) dual extruder in build log images below | 1 | |
| MGS Extruder T2.5 Belts | MGS branch of i3 single-frame parts bySound: i3-unterwelt at https://github.com/alexrj/Prusa3/tree/i3-unterwelt | |
| mgs-body.stl | 1 | |
| mgs-groovemount_ABS.stl | 1 | |
| mgs-idler.stl | 1 | |
| mgs-mount.stl | 1 | |
| x-carriage.stl | 1 | |
| Single-Frame i3 | Aluminium 6mm plate 370mm x 370mm | |
| Prusa3ALU-FREZOVANY-v4.dxf | 1 |
BOM
| Description | Qty | Image |
| Clean and de-burr aluminium 6mm plates., tap holes as required | ||
| Cable tie LM8UU's to Y carriage, and attach Y belt connection. | ||
| Attach Z mounts to Aluminium plate. | ||
| Attach Z steppers and smooth rods. Ensure LM8UU's are installed 2 per side. | ||
| build Y assembly using 4 corners, Y motor mount, Y Idler mount, bearing rods, 8mm nuts washers. | ||
| build X carriage and attach to ali plate | ||
| attach Y assembly to ali plate | ||
| attach and tension Y belt. | ||
| Attach and tension X belt. | ||
| Attach Heated Bed. | ||
| build extruder assembly (dual extruder based on EiNSTeiN's branch as per above in these pictures) | ||
| Attach Ramps (standoffs etc as shown) | ||
| Attach Extruder | ||
| Dual Printers! | ||
| Dual Extrusion! |
NEMA17 steppers x 5
J-Head MkV x 1
GT2 pulleys x 2
GT2 belts x 2
(Note that MGS files in Sound's i3-underwelt branch is stl's with T2.5 belts assumed)
clear tubing (z coupling) x 2
Z drives M5 (length) x 2
