Have you ever been in a boring conversation and had to wait until the conversation was over? Just in time for the holidays, The Waiting Machine is here to solve this issue for you.
Simple design with an easy to turn handle can provide hours of fun. The original design of the fingers is from GrabCAD: https://grabcad.com/library/human-left-hand
Printed Items (Support Y/N):
1x BigCap (N)
2x SmallCap (N)
5x CamShaftv0 (N)
1x Crank (Y)
1x Housing (N)
--- Fingers ---
1x Index (Y)
1x Middle (Y)
1x Pinky (Y)
1x Ring (Y)
1x Thumb (Y)
1x 1/8in round rod
1x 5/16in threaded rod
10x 5/16in - 18 coarse jam nuts
Adjust these for your printer. Use your best judgement for supports. Turn the infill up to 100% for small parts.
Take the threaded rod and put a stack of: metal nut (MN) - plastic crank - MN
Ultimately, the threaded rod will have 5 stacks, one to engage each finger. Putting them on is not an easy process as it needs to be done INSIDE the housing. Enlarge the holes by HAND with a 5/16 drill bit and slide the threaded rod through. The metal nuts on either side are intended to apply pressure to the plastic so that it doesn't move over time.
After the threaded rod is put in, slide the round rod through the housing and through the 5 fingers.
Glue the crank handle and caps to the end of the threaded and round rod.
Maybe version 2 will fix the above issues.