4879
« on: June 04, 2013, 02:55:33 AM »
The index pulse would be input to Mach on an input pin then you would tell Mach which pin by setting that up in Ports and Pins, Inputs.
If you do not have an index connected then that may well be your issue with the very slow feedrate, if you have "Use Spindle Feedback in Sync mode " chosen then Mach will not see the index so will not feed very fast. If you go to Config menu, Ports and Pins, then Spindle Setup you will see that option top right.
If you do have an Index input and you tell Mach to use it in sync mode then the axis will not be truely synchronised with Spindle. What will happen is each time a feedrate is called Mach will look at the true RPM and feed accordingly. If however the spindle speed drops/increases (spindle override or due to load) then the axis will not change its rate until a new feed is called, only then will it look again at the true spindle speed and adjust the feed accordingly.
Hood
Hood