Stepcraft UCCNC strange estop

Hello,
I have 2 Stepcraft D420 with performance kits that run the same work in parallel. They 99 % of the time stop at the same line (estop fired) and I don't know why ? I have to do "run from here" multiple times to get it done.

I have an equal setup and had similar problems. And found out that my feed rate was too fast.
Have you checked your feed rate?
Is the point where it stops by any chance a spot where a sharp angle is involved?

Kind regards.

Hello,
I manager the problem with a combinaison of 2 solutions:

In fusion 360 post, replace
allowedCircularPlanes = 1 << PLANE_XY; // allow only XY circular motion
with
allowedCircularPlanes = 0 << PLANE_XY; // not allow only XY circular motion

Dust management on the Y sensors: sometimes clean with brush and add protections that I designed (see attachments, you need 2 parts).

Fabien

Hello,
I manager the problem with a combinaison of 2 solutions:

In fusion 360 post, replace
allowedCircularPlanes = 1 << PLANE_XY; // allow only XY circular motion
with
allowedCircularPlanes = 0 << PLANE_XY; // not allow only XY circular motion

Dust management on the Y sensors: sometimes clean with brush and add protections that I designed (see attachments, you need 2 parts).

Fabien

yes that would be also one of my solutions for this. So good luck