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Topics - Scott Wallis

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Hi,

I am having trouble making it all the way through a program because somewhere in the middle of a build a limit switch is triggerd and stops the program - The problem is, I don't have any limit switches installed......

Heres how the problem plays out.

I am using a Taig Micromill with Mach3 running G code generated by Meshcam. The parts I (try to) make are only 1 inch by 1 inch out of aluminium, so there is no way that any limits are even close to being exceeded.

I set the zero's the the edge of my stock and begin the program. The mill works great for about 45 minutes, cutting out a fantastic looking part. Then for no reason the spindle stops, and Mach 3 gives me an error message "A limit switch has been triggered",

I dont have any limit switches installed so why would I get this message??

Thats not even the biggest problem....

The big issue I have is that after I reset, and recommence the program, Mach skips about 1000 lines of code, tries to dig way too deep and breaks bits. Even if I rewind back to the same line of code that the limit switch was triggered on, the program runs through slightly offset from the original pocket, like somehow it has dropped its program zero.

So..

Can anyone tell me

1) How can I get Mach to ignore these phantom limit switch activations?, or
2) How can I get the program to continue and complete the part rather than spazzing out and breaking my endmills?

Thanks

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