What would cause this? I have 4 horizontal lines that I cut completely through my material. They were all on the same tool path so they should have cut identical. As you can see the top and bottom line cut deeper into my spoil board. The difference in depth is from .0375 (two middle lines) to .11 (the top and bottom line). I am running on a one infinity elite with pwn spindle. The bit is a downtown Jenny .25”. Cutting dept .20 at 80 ipm @ 18000 rpm. This has happened to me before when I was cutting 20 parts out of a board and 2 of the 20 went deep. Luckily this issue has never ruined anything yet but I would like to figure out why it’s happening. The material is flat and my bit did not move. The middle two lines were carved first. Then it went to the top and then bottom.
I had a similar problem when running G-code from Fusion 360 on Buildbotics. When drilling patterns of holes, Fusion generated canned-cycle commands that Buildbotics does not support. Instead of throwing an error, the controller simply ignored the commands, resulting in real-world Z-position errors.
Search your G-code for any G80 commands. If you find any, I’ll share a workaround that worked for me.
