Semi-Autonomous Claw
The semi-autonomous claw is a project designed to pick up objects detected by a sensor. It operates in tandem with a person, combining automated object detection with manual control for positioning.
Design/Concept Generation
As part of a group of five, we worked on generating concepts for a semi-autonomous claw designed to pick up objects off the ground. Each team member contributed a design sketch, and we collaboratively evaluated the benefits and drawbacks of each proposal. Through constructive discussion, we selected the most feasible and effective design, balancing functionality and buildability, to proceed with development.
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The design we chose below has scoops that would close from the turning of a servo motor. The conditions for it to close were decided by the set distance
​The design we chose above has scoops that would close from the turning of a servo motor. The conditions for it to close were decided by the set distance detected by the ultrasonic sensor attached at the front.
Prototyping
The prototyping process for the semi-autonomous claw began with simple materials like cardboard and shoelaces to test the functionality of the servo mechanism and ensure the claw would close effectively. We continued iterating until we produced the final claw design.
Final Design
Following the completion of the prototyping phase, proper isometric draws were created to show 2 angles and the 2 states he claw could be in.
Final Build
The final claw was constructed out of aluminum sheet metal that we cut using hand tools.
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The Arduino was coded to close the servo after the ultrasonic sensor detected an object within a 5 cm range.
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It functioned well but was not strong enough to pick up heavier objects. In the future, I would adjust the width of the metal and add an extra layer to improve its strength.
