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General Mach Discussion / Re: Auto detecting and zeroing of z axis
« on: December 14, 2009, 06:09:37 AM »
First reply deleted as I misunderstood the question.
After a lot more thought – If your workpieces are electrically conductive and the cutter is electrically isolated from the workpiece the auto tool zero button could possibly be redefined as an OEM button and your GCode would then call a macro to touch off the surface of the work automatically for the start of each part.
On the other hand if the workpiece and cutter are electrically connected (both ground) then the alternative would be to use a touch plate (as I and many others have done) but due the proximity of fingers I do not think it would be wise to perform this operation within a running program so placing the macro within the auto tool zero button and manually clicking on it would be preferable.
Tweakie.
After a lot more thought – If your workpieces are electrically conductive and the cutter is electrically isolated from the workpiece the auto tool zero button could possibly be redefined as an OEM button and your GCode would then call a macro to touch off the surface of the work automatically for the start of each part.
On the other hand if the workpiece and cutter are electrically connected (both ground) then the alternative would be to use a touch plate (as I and many others have done) but due the proximity of fingers I do not think it would be wise to perform this operation within a running program so placing the macro within the auto tool zero button and manually clicking on it would be preferable.
Tweakie.