This is a simple ball drop machine. It is designed to be easy to print and very tolerant of printing flaws.
It prints in 4 pieces. The gears are attached with metal pegs and a small washer.
Everything was designed in openSCAD except for the upright portion of the frame which was done in tinkercad.
https://www.youtube.com/watch?v=y_nTN3qEn4w&feature=youtu.be
ball-gear.stl | 416.3KB | |
drive-gear.stl | 67.8KB | |
frame.stl | 36.8KB | |
gears.scad | 841.0B | |
ramp.scad | 4.4KB | |
ramp.stl | 236.8KB |