Inclined Plane Timer

This cylindrical timer rolls down the inclined plane very slowly, at a rate of 20cm per minute. It is inspired by traditionalInclined Plane Clocks and is very similar to the popular clock mechanismTourbillon , except that in this case, the outer cylinder rotates instead of the inner clockworks (escapement).

Introductory Video

Supplies

• 2mm tapping screws with various lengths
  • Screw drivers
  • Drill bits
  • Files and/or sand papers

How to make

Print

• Print all parts with supplied posture. No support structured needed.

Clean the parts

The smoothness of the rotating parts is very important. Clean all the parts carefully.

• Clean all holes with drill bits.
• Make the all touching surfaces smooth, with files and sand papers.

Assembly

Please take a look at the assembly guide video.

• Use screws of appropriate length.

How to use

• Prepare inclined plane and place the timer. Tune the angle of the plane to make the timer working properly.
• The timer can be activated not only rotating the balance wheel but also swinging the outer case.
• Racked gear (rail) is useful to avoid the slipping down.

Principle

The cylinder (timer body) is kept stationary by the weight. The center of gravity of the timer is always on the vertical line passing through the contact point of the inclined plane. The position of the weight gradually goes down through the regulation of escapement, and the center of gravity moves to the right. Then, the cylinder rotates clockwise and moves down a bit. With this motion, the position of the weight is raised, and the escapement gains additional energy to drive.