IR Z Probe DC42

[Dennild]

Hello new member here just made the user but i have been reading of of here for quite awhile now.

I'm currently building a HEVO corexy printer and my plan was you use the IR sensor by DC42 but my bed is gonna be PEI.
In the guide it states that if i paint the back black it would work but it seems like it also triggers on scratches on the surface?

should i use another sensor or is the IR sensor gonna be fine?
PEI is 0,8 mm thigh

people seem to clam that the peizo is extremely good but i haven't been able to find a mount with the piezo and the chimera from e3d

[dc42]

Yes the trigger height of the IR sensor can be affected by scratches on the surface of the PEI. The piezo should give more accurate results.