Hacked Gadgets Forum

July 7, 2009

Arch Ball Clock

at 9:58 am. Filed under Cool Gadgets, DIY Hacks, Electronic Hacks


DIY Clocks are great since there is an inherent motion element. Most of the clocks that we use are very boring but that doesn’t have to be the case, have a look at this Arch Ball Clock for example. It tells the time in a very interesting way. Code and plans are available so that you can make your own, you could also purchase a kit from Nuts and Volts.

Via: Nuts and Volts Blog

"Each arch has a steel ball bearing which is allowed to roll freely on the arch.

  1. Print and cut out the arch patterns downloaded earlier.
  2. Use spray glue to attach the patterns to 1/2 inch medium Density fiberboard (MDF).
  3. Cut the wood almost to the pattern line and then sand to line. Make sure that the inner portion of the hour and minute arches are smooth and nick free as the ball bearings need to roll freely.
  4. Cut two 2"x3-3/4" pieces of MDF for the feet at the end of the large arch.
  5. Cut a groove on the inside of the hour and minutes arches leaving a track for the balls to ride on. The balls do not ride inside the groove but on the outer rim.
  6. For mounting the hour and minutes arches drill a hole that will allow for a tight press-fit onto the motor shaft.
  7. Cut out a recess in the large arch for the stepper motor to sit in. This allows the motor shaft to stick through far enough to allow the the"