Interactive Flexer

This flexer seems to work in Chrome 5, Safari 5, and Firefox 3.6.6. It doesn't work on Internet Explorer or on Opera. I'm not sure why. It also doesn't seem to work on the Samsung Galaxy S Android phone, though it works on my Google Ion development phone. Go figure.

The flexer program flexes symmetric hexaflexagons with the number of faces equal to three times a power of two, e.g. 3, 6, 12, 24 faces, etc. The example below flexes a dodecahexaflexagon (12 faces).

The flexer is controlled with three buttons. The Flex button flexes and rotates 60 degrees, thus cycling through three faces when pressed repeatedly. The Flex Out button flexes without rotating, thus moving into a different cycle. The Flip Over button flips the flexagon over, allowing you to flex the other direction. If flexing out from a given configuration is not possible,
the Flex Out button is grayed.

To cycle through all the configurations, press Flex Out whenever possible. When not possible, press Flex instead. Or just press the Tuckerman button, which does the same thing.