Lowrider mesh bed leveling?

LowRider CNC Troubleshooting
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I have a very wide lowrider build that I’m using for a laser cutting machine. The wire mesh that I’m using for a cheap material holding bed has a lot of variation in it. Is it possible to save a mesh of the bed that I could somehow collect with the zmin?

I know the better choice would be to try to level the wire but just curious. Thanks!

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I was just thinking about this the other day.

I haven’t tried it. But it should work, theoretically. You need to enable mesh leveling (like bilinear) and then G29 to do the mesh leveling.

There are a bunch of options. I think there is a way to save it to. With M500. But I am not sure if I am thinking of klipper or Marlins documentation.

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When I edited the marlin firmware for my biggest 3-D printer, which has a print bed size of 410 mm x 410 mm, I noticed a UBL mesh remark in the configuration file that specified/suggested a maximum number for the mesh at 25. At first I misread this, thinking it meant 25 spots to check. But it actually means 25 columns by 25 rows, giving 625 intersections in the grid of the mesh (spots to check). That is a pretty high-resolution mesh for a 16“ x 16“ print bed. However the flatness of a LowRider table is not required to be held to the same demands as a printer bed. A 25x25 mesh for a full size LR could be quite helpful.

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I did something similar years back when I first put together my LR2 (or 1?) It did work, but I think it puts a little more strain on the Z motors, moving up and down all the time. It may not be an issue with a plasma cutter, but if I remember I just hooked up a push button switch to get my mesh co-ordinates

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did you get this woking if so do you have any more info

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Lately, I’ve been thinking pretty seriously about implementing this (i.e. marlin feature) as the software side of a table flatness checking / variation accommodation set up that will also involve a new design by yours truly for the hardware side.

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Very fast surface scanner option to help with bed leveling…

~$80 though… Connects to Pi/SBC running Klipper. Relies on Eddy currents, so metal bed needed, e.g. spring steel.

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