Back to the Drawing Board

Wed, 1 Feb 2012

Progress on the Flip Face project.

Okay, so it sort of works. You press down on one arm and the place where the head will be mounted rotates 180° one way, press down the other and it does the same the other way. 

The trouble is, as soon as I let go of the hand the head bounces back perhaps 20°. You might think it would just look wistful but no, it looks crooked. Pah.

Also, the friction on the paper belts is a little high so it jams up very easily.

I think I'll mark this down as a dead end and try replacing the mechanism. I have a few possible ideas to try. Either a very short rack and pinion, some sort of long action ratchet or perhaps as Pookafletch suggested by email, some sort of adapted pop up mechanism. 

A happy mix of frustration and fun.

Expect to see a happy face in the thumbnail next time. 🙂


Comments (1)

  • drinkumbrella February 1, 2012 at 9:10 pm

    here’s a crazy

    here's a crazy over-complicated idea: oval cam on axle, axle sits on slight decline. when at rest, cam sits on flat side of oval on raised lever. lower lever, head spins on axle across slight declie, until lever raises, forcing cam-against-lever to settle on one of the two flat sides?

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