A tool breaking in the midst of a CNC ... a similar approach should work for most CNC mills. You’ll need an unused port for the limit switch (that you can access), but that isn’t uncommon.
Typically it depends on the tool, but when you can upgrade your 3040 CNC router to use USB instead of a parallel port with the TinyG motion controller… most definitely! The 3040 or 3020 CNC ...
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