I Used mach3 and found it ok but not reliable
Used it on multiple PC’s and the same on them all.
I turned to linuxcnc and have never looked back. It’s rock solid and logical to use
Setup is challenging compared to mach but it’s not as bad as it’s made out to be and there is help out there on here and the linuxcnc forum
Plus it’s free and with a couple of parallel ports at a fiver each and a freebie PC you can do a lot for very very little money outlay

Paul


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