Yes I have done the Novamill, with new drivers and spindle motor controller but the micro mill could be done using its existing electronics plus a £10 break out board. The beauty of mach 3 is the 500 line working set up in demo mode. You do need an old (XP , WINDOWS7) PC with the £10 break out board or a more modern PC and a £25 breakout board to use the USB PC connector. i just enjoy watching it cut or drill holes in the right places - Parts actually then fit together. I use CAMBAM to generate the gcode and often to draw simple parts. Anyone local , subject to social distancing welcome to visit.