Ben on his own this time, rides around the clock on his Unicycle. After their stint at the Gym I thought I would try to get some more movement into the character, so the idea formed of movement along a circular path would be straightforward to achieve but a bit boring, so I had him move a minute hand of a clock around a Dial and introduced the gears to turn the hour hand as well. He can now be used to teach a child to tell the time as well as providing some amusement.
A 3:1 ratio pair of Bevel gears drive the Unicycle around and the friction between the wheel and the top face of the box drives the legs around on the pedals.
You will need 1 of each STL part except for the following:-
Arm upper 2
Arm Lower 2
Box side 3
You will need some extra components to complete the build :-
3 piece Ø 2 mm steel rod 52 mm long
2 piece Ø 2 mm steel rod 26 mm long
2 piece Ø 2 mm steel rod 20 mm long
3 piece Ø 2 mm steel rod 15 mm long
5 piece Ø 2 mm steel rod 10 mm long
Acetone to solvent bond some of the parts together.
Drills Ø2 mm for the holes that need to be a tight fit.
Drills Ø2.2 mm for the holes that need to be a loose fit.