All of a sudden at the start or in the middle of a job, the machine will not go down on z and stay on the same pass. it makes a low grind noise and continues. The other is when pressing the Z+ button< the machine will randomly go up or down. Already upgraded to 1.0.7 and the issue was occurring pr…

@Benozaur 100% a wire issue as stated in this troubleshooting faq: [image] Troubleshooting: Rail is getting hung, stuck, grinding, or moving in opposite direction Troubleshooting Rail is getting hung/stuck/grinding. Special notes to read before following each …

Hello @BTAPIA1 - generally truly “random” things with CNC machines are mechanical in nature. Check your wiring and connections. Does the machine do ‘random’ things when you are moving it manually? Or only during a cut? -Tom

Thanks for the response! It does it both manually and cutting . Wires are all connected that I can see.

Same thing is happening to me. Do you happen to recall what was the issue?

I came here looking for a solution too. I’ve had this problem before where the z axis just turns around 180 degrees and jogs the opposite direction. The first time it started doing this was when a magnet from my dust collector came loose and attached itself to one of the shafts. This blocked upward…

Thank you for pointing me here, I appreciate the help.

Z axis grinding and will go both directions when pressing Z+ button (solved, wire issue, see faq)

Original/PRO Series (Buildbotics) (Gen 1) Troubleshooting (X35/X50)

OnefinityCNC (Onefinity CNC Official ✅) April 2, 2024, 4:17pm 6

@Benozaur
100% a wire issue as stated in this troubleshooting faq:

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Z axis grinding and will go both directions when pressing Z+ button (solved, wire issue, see faq)

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