Endstop issues and how to fix them (Epsilon Series)

 

Tools  
allen-icon
Allen key 2.5mm 
allen-2-icon
Allen key 2mm
cutter
Cutter

 

When the Epsilon gets stuck in home position producing a loud screeching noise. This is a clear sign that you need to check the endstops, maybe one of them is stuck or broken and needs replacing.

 

Note: It's possible that you need to disassemble the endstops from the printer in order to check them properly, in the end of this article there are links with instructions that will help you in the process. 

 

Below you can see where the printer’s endstops are placed:

endstops-sigma

The most common endstop related issues are:

 

1: Cable connection issues: Check that the endstop cable is properly connected to the
driver or extruder board in case of the Z axis one.

endstop-connection-check-2

endstop-connection-check-1

 

2: (Usually the Z endstops) Bent flat flexible cable. Check if the hotend flat cable is bent on the extruder board connection. If it is, you can straighten it manually and do a bed calibration to check if the problem continues.

ffc-extruder-board-epsilon

3: Jammed switch. It can be unblocked using a cutter or a needle.

jammed-endstop

4: Broken endstop. Replace the endstop for a new one, see the parts list in this same article: Parts list.

broken-endstop

 

Conclusions: 

If none of this works, replace the Endstop, you can learn how to do that in the following articles:

How to replace the X Endstop

How to replace the Y Endstop 

How to replace the Z Endstop 

 

Forum Community

This article doesn't fix your issue? Check out our forum community for more info about this.

 

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.

 

Parts   Buy these parts
x-endstop-component Epsilon Series X endstop SKU 10941
x-endstop-component Epsilon Series Y endstop SKU 10942
x-endstop-component Epsilon Series Z endstop SKU 10943

 


RELATED ARTICLES

replace extruder board eng check flat cable eng

 

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