Hi R2.
Was going to ask how you are doing with your set up.
I have not yet made the move to MACH based machines but am pretty close as I need a larger machine.
But currently all done using GRBL based machines.
All the simple UNO with a CNC shield on top.
Gone through about 5 driver boards but almost all of my own stupidity by hogging down the machines.
But they are pennies anyway really.
I have a copy of ARTCAM (now defunct) that makes most of the work easy to do simply based on artwork.
There are a few open source packages but I have taken to this pretty well and it came with the first machine I got off the shelf so not looking a gift horse in the mouth.
Most of the newer MACH is USB based or you can even step it up to standalone too.
We all find different packages more to our liking for ease of learning.
I know you like your linux and I like my windows.
Bob.
Side note for Danger is that with cheap diamond bits from China you can also lightly engrave on stone ! Or with a 10/15W laser also write directly on quite a few types of stone.
