Software and Calibration Trouble

Troubleshooting
41

I was able to do the manual calibration. That process was easier for me than dealing with the fitness issues I was seeing before.

are the belts good as you go all around your work area?

That said, I am still getting cuts that are consistently about 1/8” off in the Y.

Tonight I tried a 10x10 square, a 15x15 square and a 5” circle. Both squares were spot on in the x but off in the y. The circle was within the 1/8” of variance around the diameter.

the easiest fix will be to tweak the scaling factor, but before you declare
success check if the error varies depending on where in your work area you are
cutting.

David Lang

42

What do you mean by this? Just that they are staying taught?

I will try making the same cut in a few other areas and see what I come up with.

43

Matt wrote:

What do you mean by this? Just that they are staying taught?

I will try making the same cut in a few other areas and see what I come up with.

before you try a bunch of cuts, just jog around the work area and make sure the
belts stay tight everywhere.

David Lang

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44

Hi David,

I moved the CNC around my 4x8 work area. What I notice is that the bottom belts always seem to have some slack in them. Its never enough that they are drooping or hanging but they don’t seem tight. Is that normal?

45

I also did a couple more test cuts of 10x10 squares near the upper and lower corners. The inaccuracy is greater in these locations. It’s about 1/8” off in the X now and about 1/4” in the Y.

What is normal tolerance for a cut like this? If mine is outside of it, any suggestions on what to try next to dial it in?

Thanks

46

If the bottom belts are drooping a bit, that is not normal, and that indicates
that the anchor locations are not quite right.

David Lang

47

Yes
I suggest you save a copy of your maslow.yaml file now that the anchor points are close, set your configuration grid to a larger value Width 2000, height 1000 and grid size to 9x9 and run find anchor points again. If it doesn’t improve out of the 0.02 fitness fairly quickly it will probably not improve, and we will have to look deeper.
When I save the yaml file I like to incorporate the date in the file name so it’s easier to find the one you want later.

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