I have encountered an issue where my woodworker makes a grinding noise and shuddering action partway through a toolpath. After the noise, the toolpath is offset as if it has lost coordinates. I have slowed my feeds down as low as 60ipm and am only taking a 1/16 inch cut with a 1/8 DCbit when this is…

Two conditions that often have come up in the forums regarding similar issues are 1) loose wiring connections - sometimes with the cables/connectors run inside the tubes, and 2) loose stepper/ball screw couplings.

I have the same issue when circular interpolation is not enable. [image] Fusion 360 and Circles (arcs) (circular interpolation) Fusion 360 Fusion recently updated their software and has Circular Interpolation disabled by default. Ensure you ENABLE this setting by checkin…

Thanks for responding. I saw that post and made the change prior to this issue.

The loose stepper ball screw connection issue makes sense to me. How are they adjusted?

I do not have my 1F yet, but I believe 1F support have sent a video describing the fix to users having to tighten the stepper motor couplers. Others who have done it will hopefully respond as well.

Can you share the NC program? You should probably email support@ with it and see if they can reproduce the issue.

[image] Fusion Circular Interpolation? Fusion 360 If you want to see what was the issue on my machine when ‘allowedCircularPlanes = 0;’ is present look at the video for the test-bug project I shared with support. Everything is ok when enable. https://1drv.ms…

Did you resolve your issue? My machine is doing that exact same thing but so far on only 1 particular file…??

Yes. follow my post above and look at my comments.

Thanks for your help. I made the change to update circular interpolation prior to this issue, unless I have done this in the wrong area. Which is possible as the screens in the posts don’t look the same as mine. I haven’t had the time to tackle this further lately.

Grinding Slipping Noise

Original/PRO Series (Buildbotics) (Gen 1)

blaghislain (Ghislain Blanchette) April 7, 2021, 3:57pm 3

I have the same issue when circular interpolation is not enable.

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Grinding Slipping Noise

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