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General Mach Discussion / Re: Homing LURCH issue, Mach3
« on: November 14, 2015, 09:27:46 AM »
Thanks for that Robert! The motors and drives work properly, in that the machine actually produces accurate parts. The other odd thing is that X and Z home switch cables run through a cable chain tightly bundled with all kinds of power cables including the 5hp spindle cables. The Y axis home switch cable is only about 3 feet long, yet it is the only problem child.
...... brainstorm .. 30 minutes later
OK Problem solved. The 4 conductor cable that connects the Y axis home switch WAS shared with the tool height switch. 2 for the Y home switch and 2 for the tool switch. Just to eliminate all the possibilities, I clipped the wires that connect the tool switch, and now Y homes as it should, even after lowering the debounce to 5. I don't get that at all! But whatever. Hopefully the problem with not return after a separate cable is run to the tool switch.
Thanks again to you and Gerry for the suggestions.
Jon
...... brainstorm .. 30 minutes later
OK Problem solved. The 4 conductor cable that connects the Y axis home switch WAS shared with the tool height switch. 2 for the Y home switch and 2 for the tool switch. Just to eliminate all the possibilities, I clipped the wires that connect the tool switch, and now Y homes as it should, even after lowering the debounce to 5. I don't get that at all! But whatever. Hopefully the problem with not return after a separate cable is run to the tool switch.
Thanks again to you and Gerry for the suggestions.
Jon