GD32 UBL 7x7 auto build mesh stops at ~37/49 and gives no mesh.

[vica153]

I was previously running GD32-UBL-ProUI and it worked without issue. I switched to GD32-UBL-7x7-NoPro-IS so that I could use input shaping. Now when I select 'Auto Build Mesh' it probes 37 of 49 points and then stops there. If I try to view the mesh, it says 'No Valid Mesh'.

Did I miss a step somewhere?

[classicrocker883]

I'm not so sure what would cause this, except that try adjusting your Probe Offsets.

I think there was a Marlin update which had some similar issue, im working on a new release so look out for that, ill look to see if theres anything I can do but let me know if you got it to work.

so I would say try zero/reset the current mesh. when you view it it should be all 0.00. also check your probe offsets so that when the probe Home's Z, it ends up in the same spot as where the nozzle is. you can check this by putting a sticky note on the bed, go to Z offset settings, have it lower to bed and basically touch the note and use marker to dot where it is. then do a Home, and watch where the probe touches. it should be in the same spot as where the nozzle was. if not adjust the probe offsets.

when the probe does its last point, and fails, pay attention and see if the probe is maybe off the bed, or if it attempts to probe multiple times. I had an issue once with the probe sticking.

[vica153]

Aha, it looks like after 'Auto Build Mesh' is done I need to select "Smart Fill In". Quite obvious now, but the "Smart Fill In" step was done automatically in the previous firmware versions so i didn't think about it.

[classicrocker883]

yeah I had thought so too. it should fill automatically for any points it could not probe (because of XY limits).

do you suggest I leave as is, or modify it

[vica153]

Leaving 'Smart Fill in' as a manual step leaves the option for people to do something else if they want...though I'm not sure what that might be.