Wait, so I would use repertier or pronterface even if the tool is a router, not a hot end? <style=”mind:blown”>
So the first thing I should try is:
2.5D model in Inkscape -> SVG -> inkscape gcode extension -> gcode -> console control in Pronterface -> usb cable (gcode being fed and feedback?) -> Marlin on a RAMPS-alike board -> wires to steppers motors.
Huh. Cool. Thanks!