Ir Z Probe issues

fragle

Hello,

i have some problems to get my ir probe working. If i put an metall ruler under the sensor, the red light is going on, but my print table ( 8mm alu platte with pertinax ) is not triggering the sensor```
; Z-Probe
M558 P1 C"io4.in" H5 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed
M557 X15:215 Y15:195 S20

Chris

Phaedrux

Photo of the print surface?

Can you try placing a plain piece of paper over the bed and see if that will trigger?