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I'm interested in hearing opinions/thoughts from folks that have use both LinuxCNC, and one of the microcontroller firmware based systems, like Grbl, or FluidNC.  I have long (though perhaps not "deep") experience with LinuxCNC, and I've done some reading a couple of times about the "newcomer" systems, but I've never used one.

I assume that, given a g-code file, any of them will (basically) get the job done.   What I'm interested in hearing about is the things that surprised you, in switching from one to the other.  What was better?  harder?  easier?  worse?  What did you miss?  What made your milling life better?  I know, I know -- changing mill s/w probably doesn't involve life-changing epiphanies.  But I think you understand what I'm wondering about.

This question is triggered mostly by curiosity, and also because I've been window shopping for a new mill lately, and I'm wondering how much I should care about the controller and software that come with it.  It's likely that I'll replace whatever they provide, with my RPi and Mesa card,  but...  maybe not, or, maybe not right away.  I guess I'm wondering what the "dark side" is like.

paul

I can not test that as it requires EtherCat hardware.

Yes, I have a Voron v0.1 for small parts (120x120x120) and a Hevort for big parts (450x450x600 volume). Pretty sweet for sensor brackets and that kind of stuff.

I did a M6 remap that does that.  I originally did it as a .NGC remap but then did the remap in Python.  Either way the idea is the same.  See the attached document for my write-up and support files.  If you want the Python files that I modified, I can post them.