@dc42, it is working now. Thank you for the quick update.

I guess it could be a bad connection.But why does it happens at random points on the buildplate. And why can't I reproduce the issue on RRF 3.6.0-RC.1 or before. Could it be an issue with the debouncer ?

I switched to a NO sensor and the issue is now flipped the error is now "Error: G29: Probe already triggered before probing move started". and the Z-probe status is stuck in the triggered state until I trigger/un trigger it manually.

@dwuk3d this particular bug was new in 3.6.0-rc.1.

Programming Z probes connected to expansion boards is not yet supported. For now you need to temporarily connect the Smart Effector to the main board if you want to change its sensitivity. I've logged this issue: https://github.com/Duet3D/RepRapFirmware/issues/815

dc42 created this issue in Duet3D/RepRapFirmware open Support programming Smart Effector sensitivity when the effector is connected to an expansion board #815

@Cognirit we've also integrated the scanning Z probe into our new Revo Roto Tool Board.

@o_lampe said in "Cat whiskers" sensor as Z-probe?:

@arhi
It only makes sense to spend more money than a BLTouch would cost, when the result is equal or better.

To me it would make sense investing time if it would solve a problem that exist and is not solved. TBH I don't see what unsolved problem this could solve except to work as underbed probe. ATTM I don't know of reliable underbed probe. Probing from the top, I doubt it can have smaller footprint than some piezo/bltouch/easytouch/.. sensor .. and as for precission and repeatability a simple microswitch is "good enough" so

but a real winner would be the heatsink-necklace as it has zero offset and requires less force than piezos.

I can't visualize how would this work

can you please share your config? this can help me too