But it’s not a motor driver, just a break out board. The G540 already has 4 switch inputs, an E-Stop input, two outputs and a VFmumble who’s exact name I’m blanking on, but I gather is a feed-back for measuring spindle speed. For my little mill, what more would I need?
I’m using EMC2 to control it and it can handle all those inputs and outputs with the proper config.
Assuming MaxNC is still putting the same motors on their mills now that they were 15 years ago when this one was made, it’s populated with 175oz motors. I think going to 320oz, with proper matched driving electronics, would have it performing much better.