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General Mach Discussion / Re: Spindle RPM and Threading Problem
« on: October 18, 2017, 06:23:37 AM »
Hi,
I don't know. I operated my mill with manual control of the spindle for quite a period of time. For simple handcoded or teach jobs I still operate
that way. Unless your Gcode uses speed, commanded or actual, I don't think it matters. Whether some of the canned cycles in lathe ops rely on
S, commanded or actual, is more than I can say.
I saw something in another thread today which may be related to your problem and may be worth investigating. Config/Ports and Pins/Spindle Setup
in the Special Functions panel check 'Use Spindle Feedback In Sync Mode' and 'Spindle Speed Averaging'. Haven't yet found any documentation about
what those settings mean but they sound promising! May be try them and see what happens.
Craig
I don't know. I operated my mill with manual control of the spindle for quite a period of time. For simple handcoded or teach jobs I still operate
that way. Unless your Gcode uses speed, commanded or actual, I don't think it matters. Whether some of the canned cycles in lathe ops rely on
S, commanded or actual, is more than I can say.
I saw something in another thread today which may be related to your problem and may be worth investigating. Config/Ports and Pins/Spindle Setup
in the Special Functions panel check 'Use Spindle Feedback In Sync Mode' and 'Spindle Speed Averaging'. Haven't yet found any documentation about
what those settings mean but they sound promising! May be try them and see what happens.
Craig