Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: DICKEYBIRD on July 08, 2013, 11:52:18 AM
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Got my spindle motor tach generator installed and working well which now gives me a very steady spindle speed. Steady enough that I'm ready to try some threading
I did some dry runs last night and when I grab the chuck in my hands to slow down the spindle a little, I can hear the Z stepper slow down & speed up when I release it; so far so good!
I'm sure there's going to be a lot of cut & try until I get more familiar with things. When the threading cycle finishes & the spindle shuts off, does the Z stay indexed to the spindle? In other words do I have to "pick up" the thread again if I find that it's a bit too large and I have to go back & shave off a bit more....or does Mach remember where it was and stay synced up so it runs right back down the thread exactly so all I have to do is dial up a bit deeper cut?
EDIT: Sorry, should have said I'm using the PP with an optical sensor with single slot on the spindle.
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As long as you do not remove the part from the chuck and your code starts from the same Z position you can alter the X min dimension and run again no problem.
Hood
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Thanks Hood, one less thing thing to worry about! ;D