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#1
Wed 17 February 2021, 13:48
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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? Paul 
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#2
Fri 19 February 2021, 09:58
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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.
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#3
Fri 19 February 2021, 11:47
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Thanks Kenrbass
Found it it was a broken connection on the z zero plate lead
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