We have a Chiron VMC that was giving torque alarms on Z. Figured the brake was sticking because we also had an issue with it dropping a bit when the access door was opened and the servos were dropped.
Of course, while the machine was locked out awaiting our attention, the cooling fan in the X Y servo amp packed it in so when we fired it up we had one more problem.
No problem, X Y amp pulled, fan replaced, machine erroring out saying it needed to be homed. No big deal other than it is dogless.
Z was easy, picked a spot near ot limit switch and did the 1815 bit 4 toggle thing.
Operator can touch off the tools to deal with that.
X Y seemed simple enough. Jog over to the collet chuck, indicate spindle to be on center with a bore of a finished part. Look at fixture offset numbers, move that much more in X and Y. Should be home, reference position, machines zero, take your pick.
Do the 1815 bit 4 toggle thing.
Life should have been good but I'm getting an overtravel on X.
MDI a G54 to load that sides fixture offset and a Y0 puts you at part Y0.
A X0 has the axis wanting to go 13 inches the wrong way.
The fixture offsets look legit. All negative numbers which match what I wrote down the last time I worked on this machine.
When I look at the keybad, no MPG (cheap bastards), axis move directions seem to match keypad layout.
Any ideas?
Thanks,
Wes