Been working well, last week did a 5 hour run of parts :)
Today i had one part and the blasted spindle cut out 4 times on me, luckily as i don't trust it i was close enough to e-stop each time and save my cutter.
I can't see any loose wires and its the same vfd message each time :(
Not sure what i can check really?
Ok, pulled it apart and rewired the VFD relay into Mach3, if it faults now it will throw the Cycle-Stop button so at least that will save any more busted tooling.
Not sure what the real cause of the drop-outs is but at least i can walk away from it now.
So far so good - no faults since wiring changes :)
Did have a probing error though - setting up for engraving plastic, 0.2mm 30deg 3mm tool in, tested the touch-plate as i always do, pressed the Z-Ref button, tool comes down and just keeps on going - pushed that little carbide bit through the pcb touch-plate, through 3mm of engraving plastic and a couple of mm into the machine bed :(
By the time i had hit the e-stop, the stepper was stalling, no idea why, i rebooted and it was ok for the rest of the day.
Last edited by Davek0974; 30-08-2016 at 01:25 PM.
Yep thats the stance i adopt now - one hand on the plate the other over the red button!
This was on the little stepper machine, on the Bridgeport with its AC servo drive i think things would have been far worse as they just do not stop until things break.
30-08-2016 #96Did have a probing error though..Clive
Thats a possible reason there, thanks. It also could be a bit of crap under the tool maybe - this was a tiny tool with a 0.2mm tip so not a lot of contact area.
It would mean carnage if it happened on the Bridgeport though, I am not using probing on the main spindle as have now sorted out fixed-height tooling etc, but when i have the engraving spindle fitted i will need to use it then as the spindle only has Er20 collet.
I always touch the touchplate to the tool before doing the probing now, just to make sure!
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