[bernielim]

I recently purchased a cnc router from a China supplier. It came with Panasonic Servo Motor and HIWIN guide rail. It runs on Mach3 USB
and I have a lot of problem getting a good circle.

I tried changing many parameter in Mach3 and the same problem resurface after I tried cutting the same pattern over and over again.
Some of the changes on Mach3 made but not workable were:-
1) Enable CV Distance Tolerance
2) Enable G100 Adaptive Nurbs
3) Distance Mode (IJ Mode) change from Absolute to Increment
4) Enable Radius Comp Off

I need some help from the forum here. Please let me know if there is anything I could do to resolve the issue.
I notice that my Panasonic motor give some braking sound when I pressed the up, down, right or left movement

Please assist

BL

[ger21]

Based on the circle, your machine has backlash in one axis that you need to get rid of.

It's not a Mach3 issue, it's a mechanical issue.

[Tkamsker]

It May be a Mixture for sure one axis is not doing the stepps it Should May be friction Backslash or less likely Electronic and more less Software

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[bernielim]

I need help on the adjustment of backlash. The screw thread I have is TBI 1605.
It looks like the backlash is on the Y axis. Can mach3 do the backlash compensation ?

[Tkamsker]

Hmm i found tbi 1650 on alibaba and it says ballbearing Type they shouldnt (China?) have backslash at all so probably you have another Issue like that there is a Kind of Travel between the Bearing and your axis spindles? Is that possible , on mach i cant help because i use Windows only if i get Payed a Lot per Hour or Gaming ,..


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