From the original Synthetos forum (2011–2025)
Hello,
It is probably a beginner's question, sorry for that:
We are using a Shapeoko with two switches on each axis. Homing works perfectly and all switches (NO) are set to the right mode ($xsn=3, $xsx=2, $ysn=3, $ysx=2, $zsn=2, $zsx=3).
When a limit switch is triggered, TinyG resets and a system alarm is output, but the motors continue to finish the last gcode command.
How can I set TinyG to stop all motion, when a limit switch is triggered?
Thank you very much for your help.
kcg
kcg - Note that another member is chasing what sounds to be similar issue starting with this post in a tgFX thread
https://www.synthetos.com/topics/tgfx-3009-problems/#post-5821
As I said there, I don't use limit switches so have no hands-on experience, but one question that came to my mind on that thread - are you sure that the limit switches are properly wired to tinyG, specifically that the X+ switch is the one hit when X exceeds limit in + direction?
You might have to check that with a voltmeter, or perhaps there is a tinyG query you can run, I'm not sure yet myself.
Thanks! I posted there!
I am sure the limit switches are wired properly (measured it again!).
The strange thing is that TinyG recognizes that a limit switch was hit, but does not stop the motion.
This is a bug in 412.01 tinyg firmware. We are working on it. Sorry for your troubles.
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