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paul60 Wed 17 February 2021 12:48

Zero touch place not connecting
I am running mach3 BOB PMDX-122 Gecko drive G203v.
been running for a few years with no problems.

just had a problem popped up i went to zero to the table top using the zero plate
when i ran the zero. The spindle moved down but did not stop when it touch the plate. have to hit the page up for it to go back up.
been using a piece of paper to zero.
any idea where to start looking to correct this?

Kenrbass Fri 19 February 2021 08:58

On the last page of the mach screen you can view the inputs. Touch the plate to a good ground while watchine the inputs. Sometimes older routers don't ground through them after lots of running. If the input works as shown on the screen, I would suspect the router is not passing ground. You can replace the router or use a ground wire clip on the bit if that is the case.

paul60 Fri 19 February 2021 10:47

Thanks Kenrbass

Found it it was a broken connection on the z zero plate lead

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