steel ball track
Description
Video https://youtu.be/yOtMJRxr4qQ Blender Animation https://youtu.be/criKqJmFT0o ... an Archimedes screw lifts 8 mm steel balls to roll down a spiral track to feed an Archimedes screw ... some hints - the complete model (about 10 cm in height) was assembled and glued together with a soldering iron at 200 degrees (PLA) - the motor is a 24.5 mm diameter, 12.5 mm thick, 3-6 V solar motor with 2 mm diameter and 10 mm length axle, for example RF-300CA or similar - the gears must be aligned (and fixed) in right angle to their axles to avoid wobbling - the archimedes screw bearings must be widened (with drill or file) to have some slip, use vaseline for lubrication - there is also an electronic for collecting energy in a goldcap and driving the motor if enough energy is harvested three versions of the track - one piece (track_prop) - split, low ground (track_split_gnd_low) - split, props parallel to ground (track_split_gnd_prop)
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