Just to repeat a little of what is said above - Forget driving the machine from the Mac - I'm a long term Mac user and detest vehemently windows, but I've admitted defeat and use Windows just to drive UCCNC for my mills. I tried LinuxCNC for the Lathe but wouldn't recommend that learning-cliff-face to anyone. But nada for Mac. That said, you don't need a particularly powerful desktop to run either Mach3 or UCCNC - I have a couple of old C2D (£40) desktops, though preferred an i5 (cost £60, eBay) for more responsiveness. An i5 will run F360 perfectly well (though GFX card helps a lot).


F360 requires 10.13 or higher?, damn, that's a useful warning - I'm stuck on 10.13 on my 4,1 (flashed 5,1) Mac Pro - so the writing is on the wall for me for that one.