micro extruder
thingiverse
The objective was to obtain a low-cost direct drive motor. After testing several options, the 1Nm motor proved to be the most effective. The assembly requires: one bearing similar to Wade's, an 8mm short shaft, a driver pulley, two M3 bolts (45mm long), two M3 nuts, two M3 washers, two M4 x 35 screws, a wood or aluminum adapter plate for mounting a Wades extruder to a Prusa X carriage, a geared stepper motor with a 1:50 ratio, 7 ohms, 12V, and 0.4A, a set of printed body and idler components, and a hot end with a groove mounting system.
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