Augers
thingiverse
Two eighty millimeter diameter augers for use in remote control trommels and similar equipment. Sizes are two hundred millimeters or three hundred millimeters long, with a six millimeter bore fifty millimeters deep at both ends. The driven end of the shafts is twenty millimeter diameter while the output end reduces to twelve millimeter to decrease back pressure slightly. Both files incorporate a brim to aid in bed adhesion; no other printer settings are necessary but I recommend making the walls at least two millimeters thick, preferably three millimeters, and using 25% or more infill if you intend to actually use it.
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