High strength bag clamp for 3D printing

High Strength Bag Clip is a 3D printable bag clip that creates a virtually airtight seal with most plastic bags - from standard 2mil polythene bags to thick multi-layer coffee bags. This clip clips the bag more aggressively than other designs and doesn't rely on flexure hinges or print-in-place parts. STL files are provided for 100mm and 160mm clips; larger sizes are possible. Original Solidworks CAD files are included for customisation.

In 2021, a mini version was added which has a 68mm wide clamping area, uses approximately 50% less material than V1.1, and clamps tighter (0.25mm cavity vs 0.5mm) to seal small and thin bags more effectively.

For the best seal, thin single layer bags should be folded before clipping.