How to check the flat cable connections (Epsilon Series)

In this article you will learn how to check the flat cable connections









Flat flexible cables (FFC) are used as connections between the mainboard, the drivers, and the extruder boards on your printer. It's important that these cables are properly connected and in good condition in order for the printer to operate correctly.



Check FFC connections

1. To lose the flat cables you can use a flat screwdriver to carefully apply pressure to the clip. In order to avoid damaging the board, make sure that you apply pressure to the connection clip and not the PCB.




2. To check the cables, remove them from the board these are connected to, and check the condition of the pins and the cable itself.



This problem is more likely to happen on the Y axis flat cable, since if it is not properly installed, it can be damaged by the Y axis rear pulley.


3. When connecting the cable back, make sure that it is properly connected, as shown here.




Note: This problem is more likely to happen in the FFC that are in motion during a print job (X0, X1, H0, H1)

In case you need to order a new cable you can contact your reseller or our sales department at Find the SKU references below.


Parts     Buy these parts
    Epsilon W50 Epsilon W27
FFC X0 X Axis Left SKU 16080 SKU 16522
FFC X1 X Axis Right SKU 16082 SKU 16518
FFC H0 Extruder - Hotend Left SKU 16005 SKU 16514
FFC H1 Extruder - Hotend Right SKU 16006 SKU 16516
FFC Y Y Axis SKU 16078 SKU 16519
FFC Z Z Axis SKU 10860 SKU 10860
FFC E0 Mainboard - Extruder Left SKU 16081 SKU 16521
FFC E1 Mainboard - Extruder Right SKU 16079 SKU 16520


Forum community 

Repair didn’t go as planned? Check out our forum community for troubleshooting help.


It's important to keep your printer in good shape to make the most out of it. In this chart you can find a list of the extruder maintenance procedures and how frequently these should be done. Maintenance Plan


bcn3d-recycle  Take your e-waste to a certified recycler. Check how we do it in BCN3D.



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