Hood,
I set up to do the repeatability test again on the Y-axis. It ran 6 minutes with a variation of about .0006 inches. I was cycling .350 inches. Just past the 6 minute mark the stepper motor did its twiching and pushed the dial indicator out of the way. I ran a drive test right away all the displays looked normal but there was no line on the graph. 23731 to 23733, 547 and, 4192. The motor tuning settings are 23.94 in/min. 2.98 in/sec2. FRO is at 6. I have G17, G61, G90 and , G94 on the first line of the program. I am using G01 to go to the dimensions.
I stopped it when it hit the dial indicator. When I hit the start again all that would run is the elapsed time.
I will hook up a millivolt meter on the drive and run the experiment again.
B.E.N.