Picture of Ornithopter
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

Other Stuff:

Rubber Band
Super glue
Needle nosed plyers
glue gun
Tissue paper (Other light materials work.)

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Step 1: The Body

Picture of 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

Picture of The Tail
Then glue your three 3 1/2 pieces together in a triangle.

Step 3: The Wire

Picture of The Wire
After that, bend your wire as shown in the picture above.

Step 4: The Beads

Picture of 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

Picture of Tail
Glue the tail wire piece on.

Step 6: Wing Spars

Picture of 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

Picture of 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

Picture of Finish
Just attach a rubber band, wind it and give it a toss!

Ask me for any questions

jbrodz5 years ago
I notice other plans has only two balsa rods for the tail forming a 45 degree angle. Another has a T-shaped tail. Does that make a difference?
Emsaid (author)  jbrodz5 years ago
no not really but this is gonna be more stable