Square Mystery Clock – Can You Guess How It Works? 3D Printer Model

Author: @
License: CC BY-NC-SA
File formats: ino,stl,blend
Download type: zip
Size:1.1MB

The file 'Square Mystery Clock – Can You Guess How It Works? 3D Printer Model' is (ino,stl,blend) file type, size is 1.1MB.

Summary

Square dial mystery clock.It does not have transparent rotary disk because it never fit in the frame. Can you guess how it works? Of course, it has a motor at the bottom. The question is how to drive the hands through transparent glasses.

Please google with the words "square mystery clock" to see the original antique fancy clocks in mid-19th to early-20th century.

Update Feb 24, 2021

  • Arduino code for stepper motor control is improved. Rotation is a bit smoother than before, with 8-phase control.
arduino-code-for-mystery-clock-8phase.ino 2.1KB
axis-rear-cap-optional.stl 46.8KB
drive-crank.stl 93.6KB
frame-front.stl 70.2KB
frame-rear.stl 2.2KB
gear-retainer.stl 71.0KB
gear1.stl 58.7KB
gear2.stl 180.0KB
gear3.stl 44.2KB
hour.stl 242.3KB
index.stl 26.6KB
intermediate-gear.stl 70.4KB
main-crank.stl 58.5KB
min.stl 35.4KB
motor-gear.stl 40.7KB
motor-holder.stl 311.8KB
mystery4.blend 2.8MB
spacer1.stl 23.5KB
spacer2.stl 23.5KB
stepper-test.ino 1.0KB