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Robot Hand Design - GenAlpha E03
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Robot Hand Design - GenAlpha E03

This project demonstrates a simple cardboard robotic hand that mimics finger movement using straws and strings. The cardboard forms the hand structure, the straws guide the strings, and pulling the strings bends the fingers like tendons in a real hand. It is a simple way to learn about robotics, joints, and human hand movement.

  • robot arm
  • robot hand
  • manipulation
NINimantha Adikaram
Oct 15, 202616 views
Download PDF

Supplies and tools

  • Thick cardboard
  • Cardboard file cover
  • Strings
  • Straws
  • Hot Glue Gun And Glue Sticks (or Normal Glue)
  • Marker/Pen
  • Colored Paper for decoration
  • Scissor

The author turned comments off.

Step 1: Draw arm shape

Draw arm shape

Step 2: Fold the joints

Fold the joints

Step 3: Tape on straws

Tape on straws

Step 4: Add arm support

Add arm support

Step 5: Thread the strings

Thread the strings

Step 6: Decorate

Decorate

Place your hand on cardboard, trace around it, and carefully cut out the hand shape

Make small folds across each finger where the finger joints would normally bend

Cut short pieces of drinking straw and tape them with gluegun along each finger section to guide the strings

Fix a piece of hard cardboard inside the arm section to make the robotic hand stronger and more stable.

Pass a string through the straw pieces on each finger. Pulling the strings will make the cardboard fingers bend.

Add colors, patterns, or cartoon designs to make the robotic hand look creative and fun.

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