I was using the large CNC today, and it seems like it’s Z-axis isn’t as good as it has been. I’m doing cuts of material sitting against the spoil board, and I’m having an ~1/8" variance in depth of cut. Danny looked at it quickly and pointed out there are bolts missing between the frame for the bed and the frame for the X axis in the area I’m having problems with.
You can also see the problem I’m talking about if you look at the cuts in the spoil board. Straight lines have variable depth across the machine in the X direction. It’s not that the spoil board needs to be re-surfaced, it’s lost some rigidity in the past few months.
Can we have someone look at it and trace down where we might be having rigidity problems?