I'm new to CNC, and am looking at building a "pizza wheel" fabric cutter.
You're basically looking at a standard 2.5 axis router type set-up and a rotary head to keep the pizza wheel cutter tangent to the curve (or in-line with the incremental straight line segment cuts, if you will). Z-axis control is dirt simple - basically a "pen up/pen down" operation like a pen plotter.
Gerry in the general control software forum thought Mach 3 could do tangential control if arcs were converted to line segments. Anyone have any experience with this? What if I wanted my tool head to contain both the rotary pizza wheel cutter as the primary tool , along with a retractable pen adjacent to it so I could switch over to cloth marking or plotting on the fly?
Thanks,
krumly