3-in-1 3d printer cnc machine

grabcad

this is a 3-in-1 3d printer design. cnc + 3d printer hybrid .the idea was to make a strong and precise cartesian machine that can accept various toolhead, for 3d printing, cnc, laser, plotter, 3d printing paste and other thing that arduino mega can handle.so far it was successful, it print high quality parts and mill precise pcb board , engrave hardwood flawlessly.tool changing is strait forward and toke about 30 seconds.thanks to marlin developerthanks to repetier host teamthanks to you guys here* use z endstop for probe, both in cnc mod and 3d printing mod,* dont forget to put 3 small ceramic capacitor and 1 schottky diod for spindle for electric noise canseling. otherwise mosfet (and related pin of arduino chip) will burn.*connect spindel to "part fan" mosfet in cnc head , connect two wire of termistor to each other by a resistor so marlin dosnt notice the head is changed*put some LED on buttom of x gantry and put its button next to lcd dysplay, very handy and useful* when using cnc mode, put a folder on sd cart with gcodes here, the gcode"bed level" has dimension. edit it for every job.* all axis + extruder can have "gearbox" . i put one in the extruder and it perfectly print with 0.2mm nozzle. video and dxf files are on the youtube channel *if decide to make machine, duble check all schematic. it might need some tweaksyoutube: https://www.youtube.com/channel/UCv79DCmpt03qJFFhfs3hQ1g"learn, make, forget"thingiverse: https://www.thingiverse.com/hamid8sadra/designstelegram, whatsapp : +989378691597instagram: @3d_printer_toys