Robust Teaching Clock 3D Printer Model

License: CC BY
File formats: STL,zip
Download type: zip
Size:15.6MB

The file 'Robust Teaching Clock 3D Printer Model' is (STL,zip) file type, size is 15.6MB.

Summary

New Version: https://www.thingiverse.com/thing:3037481

I liked the concept of these other teaching clocks, but the parts were too small and weak. I kept breaking them while trying to assemble them.

https://youtu.be/fpQ6ET8xsCk

Everything is held together with #6 flat head sheet metal screws.
5x 1/2" long
1x 1.25" long

When assembling make sure that the gear in the base housing has one tooth pointing up (at 12) and two teeth pointing down (at 6). Then attach the arm and both hands pointing up (at 12).

Things that still need improving:

There is a lot of play in the gears. I might try fattening up the 8 tooth gears more and see what happens.

The drive shaft is too wobbly.

The arm (and minute hand) are not balanced, so they don't stay put when you hold the clock up.

12_Tooth_Gear.STL 360.7KB
8_Tooth_Gear_-_Fatter_-_Bottom.STL 300.4KB
8_Tooth_Gear_-_Fatter_-_Top.STL 285.5KB
Arm.STL 100.6KB
Base_Housing.STL 662.2KB
Drive_Shaft.STL 147.6KB
Hour_Hand.STL 221.7KB
Minute_Hand.STL 168.5KB
New_Clock_Face.STL 1.4MB
Robust_Teaching_Clock.zip 14.6MB