Stepper upgrade for makerbot MK5 extruder
thingiverse
An adapter for Makerbot Mk5 extruder using a stepper motor Build the modified Wade's gear-derived adapter from Nicolas' Thingiverse design. Assemble the parts by drilling holes, sanding surfaces flat, attaching gears and bolts, fitting bearings, and adjusting positions. Replace the Mk5 extruder gear with the new assembly on the stepper motor, disassemble the Mk5, slide the Mk5 Drive Gear onto the adapter's M6 bolt, and secure it in place using the grub screw. Position the adapter where the original motor was, fasten with 4 M3 bolts, and connect the stepper motor wires to the extruder board's H-bridge outputs as per A/B/C/D color codes. Upload firmware v2.3 release 3 with stepper support and follow extruder firmware upgrade instructions for setup completion.
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