PrototypeHardware
Cardboard Gripper Arm
A low-cost robotic gripper sketch made from cardboard, string, and simple servos.
Published March 15, 202634 likes
About this project
The first build explores whether a classroom robotics club can make a useful gripper with inexpensive materials. The project page records sketches, failed joints, and questions for a safer second prototype.
Technologies & Topics
roboticscardboardservo
Growth Ledger
Project journey from idea to launch
IdeaStep 1
Problem note
Wrote down the everyday situation this project is trying to improve and the first group of people to ask.
4/26/2026
ResearchStep 2
First rough test
Made a tiny checklist, sketch, or paper version to see what felt useful before building more.
4/26/2026