Prusa i3 Hephestos

Prusa i3 Hephestos

Release status: working

Description
License	GPL
Author	User:bq
Contributors
Based-on	Prusa i3
Categories	RepRap, Prusa Mendel Development
CAD Models
External Link	github: bq: Code

Introduction

facilitate and more comfortable to the user installation and commissioning of the printer.

Prusa 3D printer Hephestos is an open source 3D printer designed and developed by the bq Department of Innovation and Robotics. Hephestos is based on the Prusa i3 and adds several improvements from other printers as PowerCode, parts developed by the RepRap community, modifications to these parts, and new parts by bq.

This project has sought to offer a robust printer design, addressing many of the shortcomings of earlier designs such as the end-stops positioning and wiring routing. We have placed particular emphasis on providing good documentation to ease its assembly.

Where to buy

 - bq Spain - (author) - free shipment
 - Leds & Chips Assembled - Portugal
 - Leds & Chips Portugal
 - Iniciativas 3D Spain
 - wi3d Print Spain
 - 3D Proditive Shop Spain
 - Simac Spain
 - Crea3D Italy
 - 3DPrinter Store Ch

Building Instructions Video (Youtube):

<videoflash type="youtube">nvTeJvRi8Bo</videoflash>

Prusa i3: Unboxing video (Youtube):

<videoflash type="youtube">c_TUTrBQ2XU</videoflash>

Gallery

Technical specifications

Dimensions

-Dimensions printer: (x) 460 x (y) x 370 (without roll z) 510 (with roll z) 583 mm

-Dimensions printer area  : (x) 215 x (y) 210 x (z) 180 mm

-Dimensions box: (x) 400 x (y) 400 x (z) 250mm

Mechanical

-Aluminum frame and base powder coated

-Chromed smooth rod X, Y, Z

-Linear ball bearing LM8UU for X, Y, Z

-Axial B623ZZ bearing pulleys balls for X, Y

-Igus chain stitch

-Flexible coupling aluminum 5 to 5 mm Z Axis

-System level print base with 4 points and cushioning

-System quick change print base with Clips

-Fans brushless axial ball bearings.

Print resolution

-Very high: 60 microns

-High 100 microns

-Media 200 microns

-Low 300 microns

Extruder Mechanics

-Witbox extruder

-0.4mm nozzle

-Sink fins with axial fan

-Irrigation Nozzle Part

Print speed

-Recommended speed: 50 mm / s

-Maximum recommended speed: 80 mm / s

Electronics

Any RepRap electronics conforming to RepRap Interface Standard RIS 1.

-Display LCD and rotary encoder with pushbutton navigation

-Cold Base Glass size 220 ​​x 220 x 3 mm

-Power supply 220 AC 12 DC 100W

-Thermistor 100k extruder

-Heating element 12V 40W

Software

-Firmware derivative Marlin

-Recommended environment: Cura Software

-Supported Files:. Gcode

-OS supported:

Windows XP and above

Mac OS X and above

Linux

Communications

-Reader Standard SD cards

-Port USB Type B

Materials

PLA Filament 1.75-mm

Changes with respect to other models Prusa i3

Limit switch clamping:

Designed by the department specifically for this model.

Belt tensioners

Tensor X axis identical to the Power Code. Tensor Axis And http://www.thingiverse.com/thing:6818 downloaded from Thingiverse.

Support for RAMPS

Designed by the department specifically for this model. Includes three anchors to collect the wires on one side flanged.

Support LCD

Designed by the department specifically for this model. The design has been inspired by http://www.thingiverse.com/thing:121640

Support Fan

Designed by the department specifically for this model.

Chain Stitch

Parts modified to include the chain stitch on all axes, avoiding pinching, cuts and caught the cable axis movement.

Power supply

Pc power supply

Extruder

Witbox extruder.

Frame

Official modified Prusa. It has a recess in the Y axis area to prevent friction may exist once the leveling of the base if the screw protrudes. File:Frame&base Hephestos.dxf.zip

Printing volume

215x210x180 mm

Printed Parts

Thingiverse page: http://www.thingiverse.com/thing:371842

Own desings

X Axis coupling chain stitch

Part	Downloads
	File:Acople cadeneta Eje X.zip

Mechanical Endstop clamping X axis

Part	Downloads
	File:EjeX final de carrera.zip

Mechanical Endstop clamping Y axis

Parts	Downloads
	File:EjeY final carrera marco.zip
	File:EjeY final carrera base.zip

Mechanical Endstop clamping Z axis

Part	Downloads
	File:Eje Z final carrera.zip

Hot End security

Part	Downloads
	File:Seguridad Hot end.zip

Tools

Part	Downloads
	File:Llave fija impresa archivos.zip

LCD support

Part	Downloads
	File:Soporte lcd.stl
	File:Bisagra lcd.stl

Fan support

Part	Downloads
	File:Soporte ventilador archivos.zip

Filament holder

Part	Downloads
	File:Soporte filamento derecha archivos.zip
	File:Soporte filamento izquierda archivos.zip
	File:Soporte filamento union archivos.zip

Modified

X Axis carriage

The original carriage will have made the following changes:

-Attach to rewind Igus chain stitch at the top (above the bearings).

-Addition of a small cap to ensure contact with the limit of X axis (on the side, next to the linear bearing carriage below)

Original	Modified
X Axis carriage (PowerCode)	X Axis carriage (Hephestos)
	File:Eje X carro A archcivos.zip

Clamping the left Z Axis motor

-Incorporated hitch chainstitch.

Original	Modified
Clamping the left Z Axis motor (PowerCode)	Clamping the left Z Axis motor (Hephestos)
File:I3-zbottom izq.stl	File:Eje Z soporte inferior izquierda archivos.zip

End of the X Axis motor

To provide robustness to the screw to adjust the height in Z.

-The base is elongated and has reduced the looseness of the nut to prevent the screw from moving.

-Has shifted the screw hole out to get a better accuracy in mechanical Endstop activation.

Original	Modified
X Axis left (Power CODE)	X Axis left (Hephestos)
[[File:Eje X izquierda (PowerCode).PNG|100px|]]
	File:EjeX izquierda.zip

RAMPS support

They have added three hooks. Each hook allows through a bridle, hold and collect all the cables connected to the RAMPS. By guiding the cables through the side and into the plate at the top left corner promotes cooling of drivers having no cables above the sinks.

Original	Modified
RAMPS support (Witbox)	RAMPS support (Hephestos)
File:Suplemento RAMPS(original).stl	File:Soporte RAMPS archivos.zip

Complete Kit

Complete Kit Parts to Hephestos:

File:Piezas Hephestos.zip

Bill of Materials

Tools

Part	Name	Quantity
	Allen key s/long Ø 2 UNIOR Ø 2 mm	1
	Allen key s/long Ø 2.5 mm	1
	Ceramic screw driver trimmer for electronics.	1
	Precision Needle 0.4mm diameter
	Printed spanner 10 (M6) - 13 (M8) - 17 (M10)	1

Electronic

Part	Name	Quantity
	Ramps 1.4	1
	Stepstick Drivers A4988	4
	Endstop
	LCD control panel	1
	USB cable (type B), 1.8 m.	1
	Motor wire Nema 17	4
	EndStop wire with click and female connector 40 cm	2
	EndStop wire with click and female connector 85 cm	1
	Motor Nema 17	4
	Wire kit extruder (Motor wire Nema (with connector) + Thermistor wire with connector + Fan and blower wire + Heater cartridge)	1
	150 mm of flexible wire of two bicolor threads by 1 mm²	1
	Power supply 220 AC 12 DC 100W	1
	Wire 220AC (European)	1
	Printed support for lcd	1
	Printed support for lcd	1
	Printed support for ramps	1
	Printed support for fan	1
	M3x10 Screw - DIN-912 Class 8.8 Black	4
	M3x12 Screw - DIN-912 Class 8.8 Black	2
	M3x16 Screw - DIN-912 Class 8.8 Black	2
	M3x20 Screw - DIN-912 Class 8.8 Black	4
	M3 Nut - DIN 934 Class 8 Black	12
	Heat shrink tube 2.5 x 500 mm	1
	Black bridle 100 x 2.5 mm	10
	Brushless DC Cooling Fan - RD5010B12H with 20cm wire without connector	1
	Adapter/connector Jack-Ramps	1
	Plastic Drag Chain Link 15x35 mm	52

Extruder

Part	Name	Quantity
	Witbox Extruder ( direct extruder for 1.75 mm filament, with 0.4mm nozzle)	1
	Extruder support	1
	Hot End security	1
	M4 x 6mm Screw DIN-912 8.8 Class (with head for Allen 2.5mm)	2
	M3x10 Screw - DIN-912 8.8 Class Black	2
	M3 x16 Screw - DIN-912 8.8 Class Black	1
	M3 Nut - DIN 934 Class 8 Black	1

X Axis

Part	Name	Quantity
	Chromed smooth rod 8mm x 370mm	2
	M3x10 Screw - DIN-912 8.8 Class Black	4
	M3x16 Screw - DIN-912 8.8 Class Black	2
	M3x20 Screw - DIN-912 8.8 Class Black	2
	M3x25 Screw - DIN-912 8.8 Class Black	1
	M6x40 Screw - DIN-912 8.8 Class Black	1
	M3 Nut - DIN 934 Class 8 Black	7
	M5 Nut - DIN 934 Class 8 Black	2
	M6 Nut - DIN 934 Class 8 Black	3
	X Axis Carriage A	1
	X Axis Carriage B	1
	X Axis B623ZZ bearing Pulley	2
	X Axis Right	1
	X Axis tensor B623ZZ bearing	1
	X Axis left	1
	X Axis left thread chain coupling	1
	X Axis Endstop	1
	B623ZZ axial bearing	1
	GT2 pulley (20 theet)	1
	LM8UU Linear bearing	1
	Black bridle 100x2.5mm	1

Y Axis

Part	Name	Quantity
	Chromed smooth rod 8mm x 340mm	2
	Black threaded rod M10x370mm	2
	Black threaded rod M8 x 205mm	4
	M3 x10 Screw - DIN-912 8.8 Class Black	7
	M3 x16 Screw - DIN-912 8.8 Class Black	1
	M3 x20 Screw - DIN-912 8.8 Class Black	1
	M3 x25 Screw - DIN-912 8.8 Class Black	6
	M3 Nut - DIN 934 Class 8 Black	7
	M8 Nut - DIN 934 Class 8 Black	22
	M10 Nut - DIN 934 Class 8 Black	12
	M8 Washer - DIN-125 Class 6 Black	22
	M10 Washer - DIN-125 Class 6 Black	12
	Y Axis B623ZZ bearing Pulley	2
	Y Axis belt holder	1
	Y Axis tensor B623ZZ bearing http://www.thingiverse.com/thing:68185	1
	Y Axis motor	1
	Y Axis Corner	1
	Y Axis base Endstop	1
	Y Axis frame Endstop	1
	GT2 pulley (20 teeth)	1
	LM8UU Linear bearing	3
	Black bridle 100x2.5mm	11
	GT2 belt 6mmx1m	1
	Aluminum base	1
	Acrylic base 220x220x8mm holes 3.5mm	1
	B623ZZ axial bearing	1
	Spring (long: 30,5mm ; Outside diameter: 4,5mm; Wire thickness: 0.45mm)	4
	Glass 220x220x3mm	1
	Black Biinder Clip (35x10mm)	4
	Black bridle 100x2.5mm	11

Z Axis

Pieza	Nombre	Cantidad
	Chromed smooth rod 8mm x 320mm	2
	Black threaded rod M5x300mm	2
	M3x10 Screw - DIN-912 8.8 Class Black	16
	M3 x18 Screw - DIN-912 8.8 Class Black	2
	M3 Nut - DIN 934 Class 8 Black	2
	Z Axis top support	1
	Z Axis right bottom support	1
	Z Axis Endstop	1
	Z Axis left bottom support	1
	Flexible coupling aluminum 5 to 5 mm	2
	Black aluminum frame	1

Assembly Guide

Required tools not included in the BOM

Part	Picture
	Welder and tin
	Jaw
	Nail file
	Scissors

Preparation before assembly

Prepare pulleys

Materials Needed:

Part	Name	Quantity
	LM8UU Linear bearing	1
	X and Y Axis Pulley bearing B623ZZ	2

Assembly:

Step A

Step B

Step C

Step D

Preparation of the motors

Materials Needed:

Part	Name	Quantity
	Motor Nema 17	4
	Nail file	1
	Jaw	1

Assembly:

Step A

Step B

Step C

Embed nuts

Materials Needed:

Picure	Name
	Welder
	Part
-	Nut

Assembly:

Step A

Step B

Step C

Step D

Step E

Step F

Parts to be embed with nut:

Picture	Detail Picture	Name	Nut	Quantity
		X Axis Right	M5 Nut - DIN 934 Class 8 Black	1
		X Axis left	M3 Nut - DIN 934 Class 8 Black	1
		X Axis left	M5 Nut - DIN 934 Class 8 Black	1
		X Axis tensor B623ZZ bearing	M3 Nut - DIN 934 Class 8 Black	1
		Y Axis tensor B623ZZ bearing	M3 Nut - DIN 934 Class 8 Black	1
		X Axis Carriage A	M3 Nut - DIN 934 Class 8 Black	2
		Fan support	M3 Nut - DIN 934 Class 8 Black	2
		Fan support	M3 Nut - DIN 934 Class 8 Black	2
		Y Axis base Endstop	M3 Nut - DIN 934 Class 8 Black	1
		Hot End Security	M3 Nut - DIN 934 Class 8 Black	1

Preparation of motor cables

Materials Needed:

Picture	Name	Quantity
	Motor Nema 17	4
	Motor Nema wire 17	4
	Welder and tin	1
	Heat shrink tube 2.5 x 500 mm	1

Cable length (from base of engine to end of connector)

Motor	Total length (cm)	Motor length (cm)	Extesnion lenght(cm)
X	85	30	55
Y	50	20	30
Z Right	45	15	30
Z Left	65	30	35

Note: Cut four parts of heat shrink tubing Motor wire 2cm long.

Note: Prepare motors X and Y axes before mounting the engines and Prusa Z Axis after mounting.

Assembly:

Step A

Step B

Step C

Step D

Step E

Step F

Step G

Step H

Step I

Step J

Note: Before welding cables Z axis motors, pass the bare wire through the motor hole.

Assembly:

Step A

Step B

Power supply cable preparation

Materials Needed:

Picture	Name	Quantity
	Scissors	1
	Adapter/connector Jack-Ramps	1
	Power supply 220 AC 12 DC 100W	1
	150 mm of flexible wire of two bicolor threads by 1 mm²	1

Assembly:

Step A

Step B

Step C

Step D

Step E

Step F

Step G

Axis assembly

X Axis

Introduce bearings

Materials Needed:

Part	Name	Quantity
	LM8UU Linear bearing	4
	X Axis left	1
	X Axis Right	1

Assembly:

Step A

Step B

Step C

Prepare the tensor X Axis

Materials Needed:

Part	Name	Quantity
	X Axis tensor B623ZZ bearing	1
	Pulley	1
	M3x20 Screw - DIN-912 8.8 Class Black	1
	M6x40 Screw - DIN-912 8.8 Class Black	1

Assembly:

Step A

Step B

Step C

Step D

Enter the X Axis tensor

Materials Needed:

Part	Name	Quantity
	Assembly step 1	1
	Assembly step 2	1
	M6 Nut - DIN 934 Class 8 Black	3

The objective of the tensor is load or unload a belt comfortably once set.

Note: It is necessary to sand the parts. The tensioner should slide perfectly with the part that holds it.

Assembly:

Step A

Step B

Step C

Note: The two nuts are to be tightened in the end together. To do this with the aid of a nut wrench against the other, in this way it is achieved that these nuts are integral with the screw tightened. Now introducing the wrench as shown in the picture, a crank to slide linearly tensor is achieved.

Step D

Step E

Step F

Note: With the help of the key nut and tighten nut to get a wing nut on the screw.

Introduce smooth rod bearings

Materials Needed:

Part	Name	Quantity
	Chromed smooth rod Ø 8mm x 370mm	2
	LM8UU Linear bearing	3

Assembly:

Step A

Step B

Prepare the X Axis Endstop sensor

Materials Needed:

Part	Name	Quantity
	X Axis Endstop	1
	Endstop	1
	M3 Nut - DIN 934 Class 8 Black	2
	M3x10 Screw - DIN-912 8.8 Class Black	2

Assembly:

Step A

Step B

Introduce the X Axis Endstop sensor in the smooth rod

Materials Needed:

Part	Name	Quantity
	Assembly step 4	1
	Assembly step 5	1

Assembly:

Step A

Step B

Introduce the smooth rod in the side parts

Materials Needed:

Part	Name	Quantity
	Assembly step 1	1
	Assembly step 3	1
	Assembly step 6	2

Assembly:

The length of the rod once joined in the side parts, should be approximately 31 cm.

Step A

Step B

Mount the X Axis motor

Materials Needed:

Part	Name	Quantity
	Motor Nema 17	1
	M3x10 Screw - DIN-912 8.8 Class Black	2
	M3x16 Screw - DIN-912 8.8 Class Black	2
	Assembly step 7	1
	X Axis left thread chain coupling	1

Assembly:

Note: Orient the motor cable from the top.

Step A

Step B

Step C

Introduce the adjustment screw for the X Axis Endstop

Materials Needed:

Part	Name	Quantity
	Assembly step 8	8
	M3x25 Screw - DIN-912 8.8 Class Black	1

Assembly:

Step A

Step B

Introduce the pulley on the X Axis motor

Materials Needed:

Part	Name	Quantity
	Motor Nema 17	1
	GT2 pulley (20 theet)	1

Assembly:

Note: Use the 2mm Allen wrench to tighten the pulley to the motor axis by the chamfered area.

Step A

Step B

Step C

Z Axis

Couple the motor hold on the frame

Materials Needed:

Part	Name	Quantity
	Z Axis right bottom support	1
	Z Axis left bottom support	1
	Black aluminum frame	1
	M3x10 Screw - DIN-912 8.8 Class Black	6

Assembly:

Step A

Step B

Couple the Z motors

Materials Needed:

Part	Name	Quantity
	Motor Nema 17	2
	Assembly step 1	1
	M3x10 Screw - DIN-912 8.8 Class Black	6

Assembly:

Note: Orient the motor cable to the frame

Step A

Step B

Attach the top tether of smooth rods

Materials Needed:

Part	Name	Quantity
	Black aluminum frame	1
	Z Axis top support	2
	M3x10 Screw - DIN-912 8.8 Class Black	2
	M3x18 Screw - DIN-912 8.8 Class Black	2

Assembly:

Note: It is necessary to sand the parts.

Step A

Step B

Prepare the Z Axis Endstop

Materials Needed:

Part	Name	Quantity
	Endstop	1
	Z Axis Endstop	1
	M3x10 Screw - DIN-912 8.8 Class Black	2
	M3 Nut - DIN 934 Class 8 Black	2

Assembly:

Step A

Step B

Step C

Union X Axis with Z Axis: Insert threaded rods

Materials Needed:

Part	Name	Quantity
	X Axis	1
	Z Axis Endstop	1

Assembly:

Step A

Step B

Union X Axis with Z Axis: Introduce smooth rod

Materials Needed:

Part	Name	Quantity
	Assembly step 2 and 3	1
	Chromed smooth rod 8mm x 320mm	2

Assembly:

Step A

Step B

Union X Axis with Z Axis: Union with X Axis:

Materials Needed:

Part	Name	Quantity
	Assembly step 6	1
	Assembly step 5	1

Assembly:

Step A

Step B

Step C

Union X Axis with Z Axis: Flexible coupling

Materials Needed:

Part	Name	Quantity
	Assembly step 7	1
	Flexible coupling aluminum 5 to 5 mm	2

Assembly:

Step A

Step B

Step C

Step D

Union X Axis with Z Axis: Z Axis Endstop

Materials Needed:

Part	Name	Quantity
	Assembly step 8	1
	Assembly step 4	1

Assembly:

Note: Paste with adhesive for plastics the step assembly 4 to the motor bracket.

Step A

Step B

Y Axis

Preparation of M10 threaded rod

Materials Needed:

Part	Name	Quantity
	Black threaded rod M10x370mm	2
	M10 Nut - DIN 934 Class 8 Black	4
	M10 Washer - DIN-125 Class 6 Black	4
[[File:|100px|]]	M10 Washer -(Ø 30 mm) DIN-9021 Negra	4
[[File:|100px|]]	M10 Nut - DIN 934 Class 8 Black	4

Assembly:

Step A

Step B

Preparation of smooth rods

Materials Needed:

Part	Name	Quantity
	Chromed smooth rod Ø 8mm x 340mm	2
	LM8UU Linear bearing	3

Assembly:

Step A

Step B

Union of smooth rods with threaded rods

Materials Needed:

Part	Name	Quantity
	Y Axis Corner	4
	Assembly step 1	1
	Assembly step 2	1

Assembly:

Step A

Step B

Secure with nuts

Materials Needed:

Part	Name	Quantity
	M10 Nut - DIN 934 Class 8 Black	4
	M10 Washer - DIN-125 Class 6 Black	4

Assembly:

Step A

Step B

Step C

Secure with flnages

Materials Needed:

Part	Name	Quantity
	Black bridle 100x2.5mm	4

Assembly:

Step A

Step B

Step C

Preparation of Y Axis tensioner

Materials Needed:

Part	Name	Quantity
	Pulley	1
	Y Axis tensor B623ZZ bearing	1
	M3 x20 Screw - DIN-912 8.8 Class Black	1
	M3 x25 Screw - DIN-912 8.8 Class Black	1
	M3 Nut - DIN 934 Class 8 Black	2

Assembly:

Note: The 25 mm screw is used as shaft for the pulley and the 20mm screw for the tensioner.

Step A

Step B

Preparation of Y Axis motor

Materials Needed:

Part	Name	Quantity
	Motor Nema 17	1
	Y Axis motor	1
	M3 x10 Screw - DIN-912 8.8 Class Black	3

Assembly:

Step A

Step B

Preparation of the threaded rods M8 - Part 1

Materials Needed:

Part	Name	Quantity
	Varilla roscada negra M8 x 205mm	4
	M8 Washer - DIN-125 Class 6 Black	6
	M8 Nut - DIN 934 Class 8 Black	6
	Assembly step 6	1
	Assembly step 7	1

Assembly:

Step A

Step B

Preparation M8 threaded rod - Part 2

Materials Needed:

Part	Name	Quantity
	M8 Washer - DIN-125 Class 6 Black	8
	M8 Nut - DIN 934 Class 8 Black	8
	Assembly step 8	1

Assembly:

Step A

Step B

Union of the rods

Materials Needed:

Part	Name	Quantity
	Assembly step 5	1
	Assembly step 9	1

Assembly:

Step A

Step B

Secure with nuts the structure

Materials Needed:

Part	Name	Quantity
	M8 Nut - DIN 934 Class 8 Black	8
	M8 Washer - DIN-125 Class 6 Black	8
	Assembly step 10	1

Assembly:

Step A

Step B

Step B

Preparation of the aluminum base

Materials Needed:

Part	Name	Quantity
	Aluminum base	1
	Y Axis belt holder	1
	M3 x10 Screw - DIN-912 8.8 Class Black	2

Assembly:

Step A

Step B

Secure the base aluminum with flanges

Materials Needed:

Part	Name	Quantity
	Assembly step 11	1
	Assembly step 12	1
	Black bridle 100x2.5mm	3

Assembly:

Step A

Step B

Step C

Step D

Step E

Step F

Step G

Step H

Prepare the Endstop of the base

Materials Needed:

Part	Name	Quantity
	Y Axis Endstop	1
	M3 x25 Screw - DIN-912 8.8 Class Black	1

Assembly:

Step A

Step B

Secure the Endstop at the base

Materials Needed:

Part	Name	Quantity
	Assembly step 13	1
	Assembly step 14	1

Assembly:

Step A

Step B

Step C

Step D

Place the belt of the Axis Y

Materials Needed:

Part	Name	Quantity
	GT2 belt 6mmx1m	1
	GT2 pulley (20 theet)	1
	Black bridle 100 x 2.5 mm	4

Assembly:

Note: Turn the set

Note: Tighten pulley with 2mm Allen wrench

Step A

Step B

Step C

Step D

Note: Screw out screw to slacken the tensioner

Step E

Step F

Step G

Step H

Step I

Step J

Step K

Step L

Note: Align belt

Step M

Step N

Step Ñ

Step O

Note: Tighten the belt tensioner bolt tightening

Tighten all nuts

Materials Needed:

Part	Name	Quantity
	Printed spanner 10 (M6) - 13 (M8) - 17 (M10)	1

Assembly:

Note: It is necessary to file the burrs.

Step A

Place the acrylic base

Materials Needed:

Part	Name	Quantity
	Acrylic base 220x220x8mm holes 3.5mm	1
	M3 x25 Screw - DIN-912 8.8 Class Black	4
	Spring (long: 30,5mm ; Outside diameter: 4,5mm; Wire thickness: 0.45mm)	4

Assembly:

Note: It is necessary to file the burrs.

Step A

Step B

Prepare the Y Axis Endstop on the frame

Materials Needed:

Part	Name	Quantity
	Y Axis Endstop	1
	Endstop	1
	M3x10 Screw - DIN-912 8.8 Class Black	2
	M3 Nut - DIN 934 Class 8 Black	2

Assembly:

Step A

Step B

Secure the Y Axis Endstop on the frame

Materials Needed:

Part	Name	Quantity
	Assembly step 19	1
	Black aluminum frame	1
	M3x16 Screw - DIN-912 Class 8.8 Black	1
	M3 Nut - DIN 934 Class 8 Black	1

Assembly:

Step A

Step B

Step C

Step D

Step E

Union Y Axis with the X and Z axes: Snap axes

Materials Needed:

Part	Name	Quantity
	Y Axis	1
	XZ Axis	1

Assembly:

Step A

Step B

Step C

Union Y Axis with the X and Z axes: Fit and tighten nuts

Materials Needed:

Part	Name	Quantity
	Assembly step21	1
	Printed spanner 10 (M6) - 13 (M8) - 17 (M10)	1

Assembly:

Step A

Extruder

Prepare the carriage

Materials Needed:

Part	Name	Quantity
	X Axis Carriage A	1
	X Axis Carriage B	1
	M3x20 Screw - DIN-912 8.8 Class Black	1
	M3 Nut - DIN 934 Class 8 Black	1

Assembly:

Step A

Step B

Place the carriage in the X axis

Materials Needed:

Part	Name	Quantity
	Step assembly 1	1
	Prusa	1

Assembly:

Step A

Step B

Step C

Step D

Secure the carriage with a flange

Materials Needed:

Part	Name	Quantity
	Step assembly 2	1
	Black bridle 100 x 2.5 mm	1

Assembly:

Step A

Step B

Step C

Step D

Step E

Place the belt on the X Axis

Materials Needed:

Part	Name	Quantity
	GT2 belt 6mmx1m	1
	Step assembly 3	1
	Black bridle 100 x 2.5 mm	4

Assembly:

Step A

Step B

Step C

Step D

Step E

Step F

Screw the Extruder support

Materials Needed:

Part	Name	Quantity
	Extruder support	1
	M3x10 Screw - DIN-912 8.8 Class Black	2

Assembly:

Step A

Step B

Place the extruder

Materials Needed:

Part	Name	Quantity
	Witbox Extruder	1
	M4 x 6mm Screw DIN-912 8.8 Class (with head for Allen 2.5mm)	2

Assembly:

Note: This step is necessary to remove the nozzle of the extruder.

Nota: Secure with screws the Extruder.

Step A

Step B

Step C

Placing the blower nozzle and Hot end security

Materials Needed:

Part	Name	Quantity
	M3 x20 Screw - DIN-912 8.8 Class Black	1
	Blower nozzle of the Witbox extruder	1
	Hot End security	1

Assembly:

Nota: The Hot end security is a opcional complement and no necessary for the correct printer working, but its use is highly recommended to avoid burns.

Step A

Step B

Step C

Place the glass on the base

Materials Needed:

Part	Name	Quantity
	Glass 220x220x3mm	1
	Black Biinder Clip (35x10mm)	4

Assembly:

Step A

Step B

Step C

Electronic

Place the RAMPS 1.4

Materials Needed:

Part	Name	Quantity
	Ramps 1.4	1
	M3x20 Screw - DIN-912 Class 8.8 Black	2
	Printed support for ramps	1

Assembly:

Step A

Step B

Step C

Prepare the LCD control panel

Materials Needed:

Part	Name	Quantity
	LCD control panel	1
	Printed support for lcd	2
	Printed hinge for lcd	1
	M3x10 Screw - DIN-912 Class 8.8 Black	4
	M3x20 Screw - DIN-912 Class 8.8 Black	2

Assembly:

Step A

Step B

Step C

Step D

Mount the LCD control panel on the frame

Materials Needed:

Part	Name	Quantity
	Assembly step 2	1
	M3 Nut - DIN 934 Class 8 Black	2

Assembly:

Step A

Step B

Step C

Tuck the wires in the X Axis chain stitch

Materials Needed:

Part	Name	Quantity
	Cadeneta 25 eslabones	1
	Cadeneta 27 eslabones	1
	Kit cables para extrusor (Cable motor Nema (con conector) + Cable termistor extrusor con conector + Cable para ventilador y blower + Cable cartucho calefactor)	1

Assembly:

Note: Introduce the wires singly

Step A

Step B

Step C

Step D

Place the X Axis chain stitch

Materials Needed:

Part	Name	Quantity
	Cadeneta Eje X con cables	1

Assembly:

Note: The 25 shackle chain stitch link the X Axis carriage with the X Axis left.

Step A

Step B

Step C

Step D

Step E

Step F

Introduce the Z Axis wires in to the Z Axis chain stitch.

Materials Needed:

Part	Name	Quantity
	Assembly step 5	1
	EndStop wire with click and female connector 85 cm	1

Assembly:

Note: Introduce in to the Z Axis chain stitch the X Axis motor and Endstop wires.

Step A

Step B

Note: The 27 shackle chain stitch link the X Axis left with the Z Axis left bottom support.

Step C

Step D

Step E

Prepare the fan

Materials Needed:

Part	Name	Quantity
	Fan 50 x 50 mm	1
	Printed support for fan	1
	M3 x16 Screw - DIN-912 8.8 Class Black	2

Assembly:

Step A

Step B

Wiring and cable routing

Cable connection diagram

Materials Needed:

Part	Name	Quantity
	Black bridle 100 x 2.5 mm	11
	Power supply wire	1
	EndStop wire with click and female connector 40 cm	2

Extruder wiring

Step A

Step B

Step C

Note: Use a flange with the extruder wires.

Step D

Step E

Motors cable routing

Note: Use a flange with the motors wires.

Step A

Step B

Endstop cable routing

Step A

Step B

Step C

RAMPS Wiring and cable routing

Note: Use the flanges with the wires.

Step A

Step B

Step C

Note: Guide the cables through the printed part that holds the RAMPS and secure them with the flanges.

Note: Connect the clamp plate the fan cables and power supply.

Step D

Step E

Step F

Place the fan

Materials Needed:

Part	Name	Quantity
	Assembly step 8	1
	M3x12 Screw - DIN-912 Class 8.8 Black	2

Assembly:

Note: Disconnect the LCD panel control Ramps before placing the fan and pass it through the hole in the workpiece.

Step A

Step B

Step C

Placement the filament holder

Materials Needed:

Part	Name	Quantity
	Filament holder	1

Assembly:

Note: Disconnect the LCD control panel of Ramps before placing the fan and pass it through the hole in the workpiece.

Step A

Step B

Step C

Printer settings

Z Axis adjustment

Before printing with your printer you must calibrate the screw that adjusts the height of the Z axis so that the extruder is to the correct height of the base. To do this, follow these steps:

-Put the same height ends of the X Axis. Thread each axis manually until both are at the same height.

Step A

-Tighten the set screw everything without possible forcing the printer part.

Step B

-Use the LCD control panel to bring the extruder to home.

Control > Move Axis > Auto home

Step C

Step D

Note: Make sure that the Endstops are being touching correctly by their respective axes.

-Adjusts the position of the endstop sensor adjustment screw and repeat the previous step (bringing the Z axis to home).

Step E

-If the adjustment isn't correct, repeat the previous step.

Step F

Level plate

Once Z Axis is adjusted, is necessary level the plate.

Using the LCD control panel, start the leveling program.

Control > Level plate

The program moves the extruder at four points of the base, where you must adjust the screws on each corner, so that you can pass a sheet between the extruder nozzle and glass. Must feel the friction produced by the extruder in the paper passing therebetween.

Step A

Step B

Step C

Step D

Extruder obstruction

If a blockage occurs in the extruder, follow the next step:

You must hate the extruder at 220 ° C and insert the 0.4mm needle into the nozzle until you see it come out the other end. After you must clean the needle of adhered plastic.

Step A

---

Hello world: Your first print

If you followed all steps of this manual, you should have your Prusa i3 Hephestos ready to do his first print!

First you must laminate the 3D design. The 3D designs must be in .stl. For this, you can follow our guides for some used programs.

Slic3r guide: https://www-cdn.bq.com/file/Witbox/Manual_Slic3r_ES.pdf

Repetier-Host guide: https://www-cdn.bq.com/file/Witbox/Manual_Repetier_ES.pdf

Cura 3D guide: https://www-cdn.bq.com/file/Witbox/Manual_Cura_ESP.pdf

Note: Remember that Prusa i3 Hephestos area is 215x210x180 mm.

Once you have the g-code file, save the file in a SD card. Insert the SD card in the LCD control panel slot. In main menu select "Print from SD". Now select your g-code file. The printer will start automatically. You can view the progress of the part and the extrusion temperature from the LCD panel of the printer. When printing is completed remove the glass base by removing the clamps. With the base resting on a glass table parts removed by pulling them tight.

You need apply lac on the glass for the correct adhesion of parts!

Annex

Firmware load

For load a new firmware follow the next steps:

1. Donwload the firmware. In RepRap wiki you can find a entire list of available firmwares:

   Link: http://reprap.org/wiki/List_of_Firmware

2. Here are some of the most popular firmwares and our modification of Marlin:

       Marlin: http://reprap.org/wiki/Marlin
       Sprinter: http://reprap.org/wiki/Sprinter
       Marlin Hephestos: File:Marlin Hephestos.zip

3. Download and install Arduino software from main site:

        Link: http://www.arduino.cc/en/Main/Software

4. Inside of firmware folder, you must open .ino file with the Arduini IDE.

5. Once open, will appear one tab called "configuration.h". In this file you can configurate the params of your printer.

6. When you complete configuration, load program into Arduino Mega.

Drivers calibration

Materials Needed

Part	Name	Quantity
	Motor Nema 17	2
	Endstop	1
	Witbox Extruder	1
	Ramps 1.4	1
	Power supply 220 AC 12 DC 100W	1
	Multimeter	1
	Ceramic screw trimmer f	1
	Clema	1
	Cable USB tipy B de 1.8 meters	1
-	Computer with Pronterface	1

This step must be repeat with all drivers, you will need two motors for Z Axis driver calibration.

Intensity for each Driver

Driver	Intensity (mA)
X Axis	250
Y Axis	250
Z Axis	450
Extruder	680
Arduino with RAMPS	aprox. 74 (no regulable)

• 

Wiring

Is necessary connect one endstop sensor and thermistor, because of firmware firewalls.

• 

  Step A

• 

  Step B

Multimeter preparation

Connect the multimeter in serial connection between Arduino and power supply. Put multimeter in intensity measurement mode.

• 

  Step A

• 

  Step B

Potenciometer adjust

Connect Arduino Mega to computer. The flowing current is 74 mA aprox. (this may differ between plates). Open Pronterface, select the correct port and connect to Arduino.

You must move the motor using Pronterface interface. Measures the current and regule this using the Ceramic screw trimmer with the driver potenciometer. la corriente debe ser la suma de la corriente que circula por la placa y la que circula por el motor. For example, in X Axis current must be 74 mA + 250 mA = 324 mA.

Make a pre-heat or send the M302 command is needed for the extruder calibration

Arduino need be reset before calibrating the next driver.

• 

  Step A

• 

  Step B

• 

  Step C

• 

  Step D

Pronterface donwload link: http://reprap.org/wiki/Printrun