Anomalous 'Run from here' function behavior

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25 Aug 2013 04:05 - 25 Aug 2013 17:12 #38042 by garymcrobertpdx
I have been using Linux cnc 2.6.0 and have noticed a problem using
the right mouse click 'Run from here' function. When invoked G Code
execution starts on some other instruction not the selected instruction.

I have noted that this problem also can involve my remapped M6 tool
change routine which is also G code and often causes a bogus tool
change rather than starting execution at the selected line.

For the moment I have a work around using IF statements to enable
or disable blocks of code while debugging
Last edit: 25 Aug 2013 17:12 by BigJohnT. Reason: There is no 2.6

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25 Aug 2013 04:21 - 25 Aug 2013 04:23 #38043 by BigJohnT
Just a quick note there is no 2.6, I have to assume your referring to one of the branches or master and perhaps I can assume your running Axis as well? Each GUI might handle run from line different.

Does this involve a subroutine? I seem to recall some problems involving subroutines and run from line.

Do you find yourself using run from line often? Perhaps some well placed M0's instead.

JT
Last edit: 25 Aug 2013 04:23 by BigJohnT. Reason: there is no 2.6

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25 Aug 2013 15:53 #38056 by ArcEye
Hi

In addition to what JT highlighted, at the most basic level, the line that you 'run from' must be a linear move.

There are all sorts of problems if you try to run from a line which is part of a recursive routine, because you will lose any nesting.

If you are going to have to stop to clear swarf or whatever, M0 is often the best option.

regards

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