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General Mach Discussion / Threading problem with Mach 3 Turn
« on: December 18, 2008, 06:24:42 AM »
I have just equipped my old Logan lathe with steppers and have successfully gotten pretty good results on the control of the X and Z axes.
I have a Hall effect device (the vane is almost 180 degrees, good long pulse) for the index sensor. It is working fine and the software gives the correct speed.
When I try threading the return passes are way out of sync. with the threads being totally screwed up.
My question: Does Mach 3 need the spindle speed to be EXACTLY the speed specified in the threading wizard or does it continually modify the threading (Z axis) speed to match the spindle speed?
If it is the former then I need to change my motor to one that is WAY more powerful (presently a 1 hp treadmill DC variable speed).
I have a Hall effect device (the vane is almost 180 degrees, good long pulse) for the index sensor. It is working fine and the software gives the correct speed.
When I try threading the return passes are way out of sync. with the threads being totally screwed up.
My question: Does Mach 3 need the spindle speed to be EXACTLY the speed specified in the threading wizard or does it continually modify the threading (Z axis) speed to match the spindle speed?
If it is the former then I need to change my motor to one that is WAY more powerful (presently a 1 hp treadmill DC variable speed).