Hi everyone, I hope you're all doing well!

I'm building a 4-axis (XYZA) CNC machine for fabric cutting. I haven't yet decided which software I'll use, but from what I've seen in videos online, Mach3 seems to meet my needs well.

I need to control the A-axis (4th axis) as a tangential knife.

Could someone show me how this configuration is done in Mach3?

I’ve seen tangential knives run with Mach3 (Mach3), and the important thing to understand is that Mach3 won’t automatically behave like a dedicated knife controller — you need to treat A as a true 4th axis.