Remote Direct Extruder with Dual drive gear-set

thingiverse

Hi everyone! Let me present my latest creation: a remote direct extruder that utilizes the dual drive bondtech style gear-set, which I like to call the "Remote BMG". Check out the second improved version here: https://www.thingiverse.com/thing:4048279. I've tested this design on my MachCube2.0 and used a NEMA17 pancake stepper motor from a clone titan extruder. The Duet Wifi electronics have been configured with the following settings for the 10:1 gear ratio - further refinement is still needed: * 1412 steps/mm using 16x micro-stepping * Acceleration: 600 mm/s^2 * Maximum instantaneous speed change: 200 mm/min * Maximum speed 1000 mm/min * Motor current 800 mA * Pressure advance 0.1s * Retraction 2mm * Retraction acceleration 80mm/s Print settings: * The worm gear-set and the 6mm bowden shaft couplers housing must be printed at maximum 0.1 mm layer height (I used 0.4mm nozzle with 0.1mm layer height) - print material is PETG (waiting for the IGUS filament) - the gear-set must be as perfect as possible and must be lubricated. * The body of the extruder shall be printed max 0.15mm layer height. * For a better accuracy, print the split worm gear-set and glue them together afterwards. I've designed two types of gear-sets: one with 10:1 and second with 30:1 gear ratio. If your printer is not able to print very fast due to its mechanical construction limitation, you may use the gear-set with 30:1 gear ratio. Of course, acceleration and jerk settings must be reduced by a factor of 3 and increase the number of step/mm by a factor of 3. This design is still under work, lots of further testing still needs to be done, and the design will suffer further updates. I welcome every constructive feedback and suggestions to further improve the design.