Backpack Clamp Hook – Gravity-Lock Design

This 3D-printed clamp is a compact and practical tool designed for students who are tired of leaving their backpacks on the floor. The device clips directly onto the edge of a desk and features an integrated hook that extends underneath the tabletop.

When a backpack is hung, its weight naturally presses the clamp more firmly against the desk, turning gravity into a locking force. The heavier the load, the more stable the clamp becomes. No screws, no adjustments – just a simple, self-tightening mechanism.

The clamp is designed as a one-piece without supports or assembly required.

Perfect for classrooms, libraries, or study spaces, this tool saves floor space, keeps backpacks clean, and shows off the clever possibilities of 3D-printed mechanisms.

Multiple clamping sizes are coming !

Design and description by MStein , licensed CC-BY.