IR Sensor is not homing the Z-Axis correctly

[fcwilt]

@juanito16k said in IR Sensor is not homing the Z-Axis correctly:

then i probe the bad and get between 1.25 and 1.3 mm which i put in to my config.

What command are your issuing to do that?

Frederick

[juanito16k]

@juanito16k said in IR Sensor is not homing the Z-Axis correctly:

G31 P500 X0 Y-20 Z1.265

[fcwilt]

@juanito16k said in IR Sensor is not homing the Z-Axis correctly:

@juanito16k said in IR Sensor is not homing the Z-Axis correctly:

G31 P500 X0 Y-20 Z1.265

That is for configuring the probe.

To actually probe you use one of the G30 variants.

So which variant did you use?

Thanks.

Frederick

[JayJay]

As you look to be on RRF3

The M558 command switch "probe type" needs to be set to P8 instead of P1

IR Probe

With Duet 3 main board, expansion board or tool board: Connect the VCC, GND and OUT pins of the sensor to 3.3V, GND and IN respectively on an IO probe connector, and select mode 8 in the M558 command.

[juanito16k]

okay i did that but my Z0 stays like in the picture after homing again

[Veti]

your surface is reflective and not dull.
that is not good for ir.

[juanito16k]

@fcwilt G30 S-1 ?

[fcwilt]

@juanito16k said in IR Sensor is not homing the Z-Axis correctly:

@fcwilt G30 S-1 ?

OK that variant is used to report what the Z trigger height is.

To set the Z=0 datum you want to use just G30.

Frederick

[juanito16k]

@fcwilt thank for the respones, i actually do that in my homing file

[Phaedrux]

Place a plain piece of paper on your bed and try testing again. As Veti says, your bed may not be very suitable for an IR sensor.

[juanito16k]

i think the problem was, that i had the printer right besight a window where a lot of light entered i moved the printer to a darker place and haddent had any further problems

[Phaedrux]

Ah yes, that would definitely do it.