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General Mach Discussion / Re: Help with G-540 and xyz probe
« on: January 04, 2010, 04:05:54 PM »
Thanks again, but color me confused. The clip that goes on the router is attached to a wire that goes to DC Common. This is the same place that the limit switches complete their circuit. I have an aluminum plate that sits on top of whatever wood I am working with and that has a wire attached to it that is landed on terminal 3 of the G-540. The signal is generated by the tip of the router bit lightly contacting the aluminum plate to set the Z Zero. I think the only way for me to use this system is for the router frame or bit to be connected to DC Common so the signal can complete when it touches the aluminum plate and then it is disconnected immediately thereafter. My G-540 has no physical connection to earth ground
At what point is the signal going back through earth ground? I cannot see where that would be the case but am extremely eager to learn. I have read through the debate that you and Mariss engaged re: machine grounding and connecting to earth ground and I am unable to trace where in my setup that earth ground is anywhere near the DC Common.
At what point is the signal going back through earth ground? I cannot see where that would be the case but am extremely eager to learn. I have read through the debate that you and Mariss engaged re: machine grounding and connecting to earth ground and I am unable to trace where in my setup that earth ground is anywhere near the DC Common.