I’m trying to configure an infrared probe from filastruder and I’m having some issues. I normally use proximity probes that are detachable and below the hot end. This seems to work great and I have no problem with auto calibration.
I’m not sure if it’s related, but this probe is above the hot end and it will not move all the way down to the bed using G30. It stops at varying spots and reports like it received a probe hit.
During full calibration the first probe doesn’t match the second so it stops.
Do I need negative probe heights? Or am I just getting false readings from the probe.
Smoothieboard v1,1, output pin connected to GPIO pin 2.11. Probe registers when manually triggered checked using m119
Imported from wikidot
What are you using for the bed surface?
The bed surface is glass with black paper underneath. The probe triggers just fine if it makes it down there.
Using G30 moves down to probe the bed and stops mid way and reports the position it stopped at. The point where it stops is different every time.
Trying to do a full calibration using G32 it has the same problem. You would think it is losing connection or something
Hmm… could it be getting false readings from the glass? If you put the black paper on top of the glass as just a test does it do the same thing?
I don’t think so, the IR probe LED does not flash when it stops and it’s 200mm + away from the bed sometimes.
Oh wow that far away huh. I assume this is the MINI DIFFERENTIAL IR HEIGHT SENSOR one from Filistruder?
If so did you wire it to the instructions for the smoothieboard from here: https://miscsolutions.wordpress.com/mini-height-sensor-board/