Hello everyone,
I’m encountering strange behavior on my Maslow CNC and would appreciate your input.
During the cuts, the machine deviates abruptly, then continues normally afterward.
Technical Context:
Material: Plywood
Tool: 6mm helical bit, 2 flutes, UBGXH
Feed rate: ~1500 mm/min
Spindle speed: ~14,000 RPM
Depth of cut : 1,5 mm
Observation: The first trajectory (bottom of the workplace) is correct, while the second one (higher on the bed) shows a clear and sudden deviation
I’ve attached a photo clearly showing the deviation (red arrows). The rest of the cut is perfect.
Has anyone experienced this issue before? Your suggestions are welcome!
Thank you in advance.
1 Like
This happened to me due to friction in one of the reels that couldn’t keep up with the others; I solved it by smoothing the rotation between them.
2 Likes
bar
January 5, 2026, 5:13pm
3
This generally happens when something is preventing the machine from moving correctly and the motors are fighting each other.
The fact that it happens higher on the board makes sense because the force on the top belts is higher there.
How close to the top are we talking?
I had already sanded the arms; maybe it wasn’t enough.
the deviation occurred roughly around the middle of the plywood (1220 x 2440 mm)
Compote
1 Like
bar
January 6, 2026, 5:09am
6
Yeah, that seems much too low to be caused by it being too close to the top of the sheet.
How does the tension in the belts feel? This could be caused by too much tension in opposing belts fighting each-other. Running “Find Anchor Points” again might improve it because each time it runs it will improve on the last run.
