Mechanical Hand - DIY Kit

Short Product Description

A fascinating biomimicry project where kids build a fully functional mechanical hand that moves using strings and linkages—just like real tendons! This hands-on kit helps children understand how human fingers bend, grip, and return to position through simple mechanical engineering.

How It Works

Children assemble laser-cut wooden finger segments and palm plates using pegs to create hinge joints.
Then they thread tendon-like strings through each finger and connect rubber bands for the return motion.
When they pull the strings, the mechanical fingers bend and grasp objects—perfectly demonstrating biomechanics and linkage motion.

What Kids Learn

• How tendons, joints, and ligaments work in the human hand

• Basics of linkage mechanisms and tension control

• Engineering design, fine-motor assembly, and motion mechanics

• Problem-solving through adjusting string tension & alignment

What’s Inside the Box

• Pre-cut balsa wood sheets (fingers, palm, joints)

• String set (tendon cords)

• Rubber bands (return mechanism)

• Pegs/fasteners for hinge joints

• PETG reinforcement sheet (palm support)

• Illustrated step-by-step instruction manual

Age Group

Ages 9–12

Perfect For

Future doctors, engineers, robotics enthusiasts, science fair builds, biomechanics lessons, and kids who love hands-on motion projects.