Stuck on limit switch

[dbunyip]

I've been searching but everything I find is for mach3, on pathpilot how do I override the hard limit switch? I hit the z axis one and now it won't move

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[popspipes]

pathpilot 1.9.8

you should be able to push reset while it sits on the limit, once reset the Z axis should move off the llimit.

[tbev]

If it doesn't, go to settings, check override switches, move table off switch, go back and change back in settings.

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[MetalShavings]

Or just loosen/move the switch or cam enough to disconnect and allow a reset. Keen

Yea; what he said. This is what I might have tried if simply clicking on the reset icon didn't work. If it doesn't work you can still get to the screws that hold the limit switch in place. Just mark its position, remove it completely, shut off the machine and restart. On start up you click on all the usual start up icons and you should be able to lower the Z axis. Then it's just a matter of re-installing the limit switch back in the same position.

When I first got my Tormach I started having an intermittent problem with one of my limit switches. On my machine it was the Y axis limit switch that was bad. A couple of times I mistakenly went a little to far in the X axis and had it get stuck but all I had to do was click on the flashing reset icon and I was able to get it to move the opposite direction to take care of the problem.

MetalShavings

[CountrySmith]

A temporary short across J2-4 and J2-2 on the 770 control board will defeat the y axis limit switch and allow movement. It appears to be the same for the 1100.

[RCaffin]

Power down or eStop
Twist drive (motor or ball screw) a bit to get off the limit switch
Power up, REZERO

Cheers
Roger

[tbev]

Jesus, try my option before you take anything apart. It happens sometimes, it's a software bug I think, try the easiest solution first. Just my 0.02...

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[TurboStep]

Jesus, try my option before you take anything apart. It happens sometimes, it's a software bug I think, try the easiest solution first. Just my 0.02...

+1, especially about not taking anything apart!
What popspipes said is also correct. This happens fairly often to me and PathPilot is designed to cope with it. You should be able to simply reset while on a limit switch and PP then allows ONE jog movement. If you jog in the wrong direction, or not far enough you'll have to reset again.
I've never had any issues with this feature.
Step

[dbunyip]

Just as a follow up, hitting reset did nothing. Power cycled and still nothing. Got distracted and left it alone for about 20 mins and when I came back it just worked. Not sure what it's problem was but I'm back to making chips. Thanks guys

[popspipes]

Just as a follow up, hitting reset did nothing. Power cycled and still nothing. Got distracted and left it alone for about 20 mins and when I came back it just worked. Not sure what it's problem was but I'm back to making chips. Thanks guys

Some of these things are "quirks" in Pathpilot, some of them have disapeared with later updates, it is a work in progress to some extent, no software works perfectly out of the box that I am familiar with.

I have never had it make a machining mistake..... that alone makes it a winner here!

It is good to see that you replied back to the topic as to your results, that is helpful to others who may have similar problems........

Glad to see you got it going again!