Carvewright to do what? 3d print?
You need a way to control a fourth axis and do temp monitoring of a thermocoupler or thermister and have that contol a relay to a cartridge heater. A heated bed will have its own temp monitoring and control.
Also your post will use a differnt axis letter for the 4th axis and mach will need configured to raise instead of lower on that axis. That or translate you gcode.
A typical flashable ARM based 3d controller's drivers will not run a 3+amp load of a typical nema23 stepper used in the majority of even small CNC routers. Shapeoko based machines are typically nema17 equipped. Consider you controller requirement when planning a conversion.
I added a 2nd gecko g540 to my router and do temp monitoring and heating seperate.
Last edited by Mike Heidrick; 08-28-2014 at 9:03 AM.
Glad its my shop I am responsible for - I only have to make me happy.