Hi everyone

I have a Duet3d running an Anycubic Kossel printer. Ever since I installed the Duet3d motherboard I've not been able to get bed leveling working correctly.

I have an IR probe but I can't seem to mount it close enough to the hot end to be accurate. I have had to resort to manual bed leveling. This works but after each print I have to level again (even though the printer and bed does not move).

I also have a micro switch and I am hoping that I can use this to make a more accurate bed leveler.
The micro switch is plugged into E0 on the motherboard. The switch isn't being recognised and when I run the auto level it just smashes into the print bed.

Does anyone have any experience with putting a micro switch on the Duet3d or could you point me to some instructions on the net.

Also, if anyone has any idea why the manual bed leveling does not remain accurate after a print that may help me too.

Thanks in advance for any help you can give.

Thanks for this. I've upgraded to the new firmware and manual calibration works now. I'll try again with the IR probe and see if it makes a difference.

Thanks very much for this assistance. When I set M558 to P0 X0 Y0 I get the message below. It doesn't seem to be giving me an option to jog the Z coordinate. Just the X coordinate.

Hi everyone

I'm new to this forum having recently bought a Duet3d board and IR probe for my Anycubic Kossel (after burning out their motherboard).

The Duet3d is all fully installed and working well but I just can't get the bed level. I have the Duet3d IR probe installed and it is working too.

But when I try to level the bed it's not generating accurate results.

This has been my process:

• First I've zeroed the bed correctly (for my printer I have used M665 R105.6 L215 B85 H332.8 in the config.g file). This is accurate to just grip a piece of paper.

• I have run a single probe (G30 s-1) and found the right Z height to put in my G31 command in config.g (https://www.duet3d.com/wiki/Setting_up_automatic_probing_of_the_print_bed)

• I have set the Z probe and trigger height (G31 P500 X10 Y20 Z4.17)

• I altered the bed.g file using this calculator (http://escher3d.com/pages/wizards/wizardbed.php). I had to set the radius to 85 for the Anycubic so it didn't hit the margins of the bed.

• Run auto calibration (G31)

Now when I do a bed levelling test print (circle) it is clearly off as one side is higher than the other.

I thought it may be an offset problem with the IR probe so I tried to fix this by setting H parameters in the bed.g file for every single probe point but this didn't work either. Followed the instructions on the wiki

Ironically when I clear all the bed levelling and run the test print this is closer to level than after doing the auto calibration. But still not good enough to print.

I had a feeling that this had something to do with the offset of the IR probe so I fixed it to the hot end (without heating) and ran a calibration but again it didn't level.

Any assistance greatly appreciated.

I'd be happy even to be able to manually level at this stage so I can just start printing.

Finn