I’ve also always used the generic post GRBL post processor for use with UGS. I just upgraded my x-carve grbl version to 1.1f and it is now having problems. One of the differences in the g-code produced by the generic GRBL is the addition of the g-code sequence below. The line G28 G91 Z0 did not seem to have an effect or negative effect with the previous version of GRBL but it now causes the router to come crashing down into the table. Very bad. I have a pending question with support as what I should do. Was it a mistake upgrading my GRBL? Is there an appropriate or alternative post processor I should use? Not likely related but I’m currently not using the limiting switches.
Thanks in advance for help and suggestions!
G28 G91 Z0