5

Assembly of the Extruder

1 x HeatCore Unibody extruder

1 x Extruder bracket

2 x M4 x 6 mm DIN-912 class 8.8 screw (with head for 2.5 mm Allen)

2 x M3 x 10 mm - DIN-912 class 8.8 black screw

1 x M3 x 20 mm - DIN-912 class 8.8 black screw

1 x M3 - DIN 934 class 8 black nut

G003796

List of components for the Extruder

1Preparing the carriage

1 x 1 x 1 x

1 x

Printed carriage A for X axis

Carriage for the X axis where the extruder is held, adapted for the use of chains.

Printed carriage B for X axisPart for fastening the belt of X axis to the carriage.

M3 x 20 mm screw

M3 nut

A B C

DA

B

C

D

1 2

2Mounting the carriage on the X axis

Assembly:

Fit the ensemble from step 1 onto the smooth rods of the X axis.

1 x 1 x

Prusa with all axes assembled

Ensemble from step 1

A B

A

B

1 2

3 4

3Securing the carriage with a strap

Ensemble from step 2

100 x 2.5mm black strap

A

B

1 x 1 x

A B

1 2 3

4 5

Assembly:

Pass the belt round the pulley of the right printed piece, then round the ensemble from step 3, and finally round the pulley of the left printed piece X axis. Tighten the belt and fix it with the straps.

GT2 6 mm x 1 m belt

Ensemble from step 3

100 x 2.5 mm black strap

Printed spanner

A

B

C

D

4Fitting the X axis belt

1 x 1 x1 x 4 x

A DB C

To make it easier to attach the belt, remove the pulley and place the belt on it before reattaching it.

Use the spanner as a handle with the tensioner to tighten the belt.

1 2 3

4 5

5Mounting the extruder bracket

1 x

A

2 x

B

Extruder bracketA metal bracket which allows the extruder to be fastened to the carriage of the X axis using two screws on the frame.

M3 x 10 mm screw

A

B

1 2

Assembly:

Screw the extruder bracket to the part assembled in the first step.

Mounting the extruder

6

HeatCore Unibody ExtruderHeatCore Unibody (direct filament extrusion of 1.75 mm with 0.4 mm nozzle).

M4 x 6 mm Screw

A

B

1 x 2 x

A B

1

2

Assembly:

First remove the nozzle. Using the screws, fix the extruder to the bracket mounted in the previous step.

7Fitting the nozzle and the protector

Hot-End protector printed partThis piece covers the Hot-End to prevent the user from touching it when hot, thus avoiding burns.

Printed blower nozzle

M3 x 20 mm screw

A

B

C

Assembly:

Connect the blower nozzle to the protector and fasten it round the Hot-End with a screw.

This screw (C) is not the same as the one screwed to the nozzle in the previous step.

1 x 1 x 1 x

A B C

1 2 3

The Hot-End safety protector is a non-essential extra, but it is strongly recommended during operation to prevent burns.

220 x 220 x 3 mm glass

Black binder clip (35 x 10 mm)

A

B

8

1 x 4 x

A B

Assembly:

Place the glass on the aluminium base, fixing it with the four clips.

Fit the glass of the base

1 2