this post was submitted on 04 Feb 2024
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I recently made the switch from the marlin-based stock firmware on my anycubic kobra 2, to klipper. I didn't have issues with bed levelling or first layer on the stock firmware, but I'm having significant issues running klipper. The bed is uneven, the probed mesh shows a deviation of 0.197mm, it was the same when running stock FW+octoprint.

But it seemed to be correcting just fine for this on the stock FW. I got a consistent decent first layer across the entire bed.

With klipper, it's absolutely impossible to get it to correct for this unevenness. Half the bed will get perfect first layer, but then the second half is either way too squished or hardly connecting to the bed. And it's causing further issues as it's also hitting the print when moving, despite having Z-hop of 0.3mm for travel moves.

What the hell is going on? How do I fix this?

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[–] [email protected] 6 points 9 months ago* (last edited 9 months ago) (1 children)

Looks like you have it set to load the profile "default" instead of "bed60"

Also worth asking, did you have your start gcode set in your slicer previously and if so, did you delete it out of there now that you're using klipper macros?

For me, in Cura, I simply have START_PRINT and END_PRINT in the start/end fields in the Cura settings. Based on your macro title, it would be PRINT_BEGIN and PRINT_END

[–] [email protected] 3 points 9 months ago* (last edited 9 months ago) (1 children)

Yeah forgot that I switched to default again to make sure it wasn't something with the different profiles messing it up. I update the mesh before every print now, once it's reached temp.

I did have my start gcode in the slicer before, but that's been replaced with the macro.

[–] [email protected] 3 points 9 months ago (1 children)

I'll try to check mine when I'm back home later. I just use the default profile since I don't ever adjust anything with the bed unless it's out of spec. Even printing at slightly different temps doesn't seem to affect anything as far as bed leveling is concerned.

[–] [email protected] 1 points 9 months ago

Yeah I'm not seeing any significant deviations in the mesh based on temps either.