How to Replace the X, Y, and Z Drivers (Epsilon Series)

This guide will help you replace the X, Y and Z driver boards in case you need to fix any of the issues related to them. 

 


 

EN

ES


  
 
Tools  
allen key icon
Allen key 2.5 mm
smaller allen key
Allen key 2 mm
socket wrench icon
5.5 mm Socket driver

 

Content table

 

bcn3d-electrical-hazard-02

 Attention! Electrical Hazard

it's very important to turn off and disconnect the printer to avoid short circuits or any risk of electrocution, before replacing any driver.

Do not touch the power supply or the power supply's terminals during this repair.

 

turn off epsilon

disconnect epsilon

Replacing the X-Axis Drivers

1. Remove the two Allen screws of the Driver holder

screw-iconx2 M3 8mm 

remove-screws-driver-support-epsilon-series

2. Disconnect the flat cable and the other connectors

remove-cable-driver-x-epsilon-series

3. Connect the flat cable and the other connectors to the new driver

You will need to sightly unscrew the clamp to insert the flat cable into the driver. Make sure that the flat cable is correctly installed and close the clamp adjusting the screws.

driver-x-flat-cable-clamp

4. Tighten the two screws of the Driver holder.


 

Replacing the Y-Axis Driver

1. Remove the two nuts and washers that are holding the Driver

nut-iconx2 M3  

washer-iconx2

washers on driver

2. Disconnect the flat cable and the other connectors

remove-cable-y-driver-sigma-series-d25

3. Connect the flat cable and the other connectors to the new Driver

Check that the flat cable is correctly installed before continuing with the next steps

 

flat-cable-4

  • If you have received a driver with flat cable clamp, you will need to place the upper part of the clamp over the driver spacer and adjust the screws to secure the cable.
driver-spacer-clamp-flat-cable upper-part-driver-spacer-clamp
Driver + Driver spacer with flat cable clamp Upper clamp

loose-driver-clamps-driver-spacer

4. Install the driver in its position, place the washers and re-tighten the two nuts


Replacing the Z-Axis Driver

1. Remove the lower bowdens from the FRS

epsilon frs and bowdens

2. Remove the bottom Z cable covers

Follow the next article to understand this process: How to remove the Z cable cover.

z-cable-cover-bottom

3. Raise the printing platform

To get access to the inner cover you will need to raise up the printer surface. If you can't turn on the printer, you will need to manually raise the printing platform by turning the Z motor lead screw.

epsilon lead screw

4. Remove the frontal inner cover

Follow this guide to understand this process: How to remove the inner cover

inner cover epsilon

5. Remove the two nuts and washers that are holding the Driver

nut-iconx2 M3  

washer-iconx2

z driver epsilon nuts

6. Disconnect all the cables from the Driver

remove-cable-driver-z-epsilon-sigma-series-d25-2

7. Connect the flat cable to the new Driver

Check that the flat cable is correctly installed before continuing with the next steps

 

flat-cable-4

  • If you have received a driver with flat cable clamp, you will need to place the upper part of the clamp over the driver spacer and adjust the screws to secure the cable.
driver-spacer-clamp-flat-cable upper-part-driver-spacer-clamp
Driver + Driver spacer with flat cable clamp Upper clamp

loose-driver-clamps-driver-spacer

8. Install the driver to its position, place the washers and re-tighten the two nuts

 

Parts   Buy these parts
motor-driver-bcn3d-01-01 Epsilon Series/Sigma Series XYZ stepper driver pack SKU 11931

 

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