Instructables

The Flying Scrooge: Ornithopter of Household Items

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Step 7: Make a Crank

Straighten a paper clip and bend a hook on one end. Insert into the bottom bearing and bend a stepped shape (the crank handle) into it.

Make a bead for the crank from a Bic Pen. Pull a Bic pen apart with pliers. Cut off a few rings of the ink tube. Fill the rings with super glue and let dry. Slide one onto the crank handle and glue in place with super glue. Be sure not to get any glue on bearing.
 
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