Here's how to make an ornithopter powered by a rubber band.
You will need the following: (All my measurements are in inches.)
Wood: (Balsa works well, but i used coffee stirring sticks)
2 x 1 in.
2 x 1 1/2 in.
1x 2 1/2 in.
3 x 3 1/2 in.
1 x 4 1/2 in.
2x 5 in.
Wire: (paper clips work well)
1 x 2 1/4
2 x 2
1 x 1 1/4
Needle nosed plyers
Tissue paper (Other light materials work.)
Step 1: The Body
First, cut out all of your wood and wire, Then start Gluing together.
Take your 4 1/2 in. stick and glue on the 1 in. sticks as shown in the picture. Then glue the 2 1/2 stick across the top.
Step 2: The Tail
Then glue your three 3 1/2 pieces together in a triangle.
Step 3: The Wire
After that, bend your wire as shown in the picture above.
Step 4: The Beads
Now you can glue your beads on and put the wire pieces on (don't glue the wire! they should turn freely.)
Step 5: Tail
Glue the tail wire piece on.
Step 6: Wing Spars
You'll need to glue the 5 in. sticks to the wire pieces. then take the 1 1/2 pieces and punch two holes in the end and slip the ends through as seen in the picture.
Step 7: Wings
Here's the wings you'll need to hot glue them to the spars. As for the tail just trace it and cut it out.
Step 8: Finish
Just attach a rubber band, wind it and give it a toss!
Ask me for any questions