Print out the robot finger pattern. Color as desired.
Cut out along the solid lines. Fold along the dashed lines.
Tape the top of the 16" string to the inside of the "tip" of the finger (the shortest section).
Fold the sides of the finger together over the string into a box shape and secure with tape. When finished, the string should be sticking out of the bottom.
To make the finger more rigid, add a strip of craft foam to the top. This acts a little like a finger bone. If you are going to attach a magnet to the tip, wrap the craft foam around the tip to create a firm location to attach the magnet.
To give the finger a specific purpose, glue a small neodymium magnet to the tip. (Can find a hardware or craft stores, or purchase on Amazon.com)
Pull on the string to make the finger flex and bend.
- If you've added a magnet, try using it to lift or sort metal objects. Walk around your house to see which metal objects are attracted by the magnet (because not all metal objects are!). If you have another very strong magnet, try moving it in front of the robotic fingertip -- the magnetic force will make the finger move!
- Attach paper clips to foam shapes or cutouts to make a pickup game. Add letters, numbers or words to the objects to add another layer of learning.
- Think about the different tasks your robotic finger might need to do (point, pull objects, open doors, scratch your head, stir liquids, etc.). How might you change the design to perform these different tasks?
- Applying what you've learned, can you create an entire robotic hand?