A custom TPU lid for collecting vinyl scraps while weeding

A place for the tiny pieces that cling to your hook

When you weed a cut vinyl design, the small centers and narrow offcuts can cling to the tool, your fingers or the finished lettering. A nearby collection jar gives those scraps a place to go. This parametric lid adds four flexible membrane tongues that help wipe small pieces from the hook into your own jar.

If you are searching for a vinyl weeding scrap collector STL that fits a container you already have, start with its rim. You configure the lid dimensions before buying the downloadable 3D model, instead of scaling a fixed design and changing every feature together.

Measure the jar before choosing your dimensions

Use a jar with a smooth, undamaged rim. Measure its outside diameter where the lid will sit, preferably in more than one direction. The seat inside diameter is adjustable from 36 to 90 mm. Your entered value receives no automatic clearance allowance, so choose the fit with your TPU and printer tolerances in mind.

The other controls are membrane thickness, from 0.8 to 1.6 mm, and seat depth, from 6 to 16 mm. Defaults are 60, 1.2 and 10 mm respectively. A thicker membrane generally resists bending more, but filament flexibility and printing conditions also matter. The depth must suit the available straight section of the jar rim; it does not create a screw thread.

Print the membrane flat, then turn the lid over

This design requires flexible TPU. Rigid PLA is not a substitute for the bending tongues. Print with the membrane on the build plate and the circular skirt pointing upward. Clear any strands bridging the cross-shaped slots carefully, without enlarging or tearing them. For use, invert the print: the membrane is on top and the skirt fits down over the jar.

Try a few scraps from your actual vinyl first. Check that the tongues flex, the lid stays in place and adhesive residue can be removed from the TPU. Guide the hook gently through the center; forcing it against the slit edges can damage them. Empty the jar before scraps crowd the membrane.

What you receive

The STL contains the lid, not the glass jar, vinyl or weeding tool. It is a scrap-collection aid, not a sealed storage lid or a silicone part. The application image is an AI visualization; the design has been digitally checked, but no physical test print is claimed.

Configure your custom TPU scrap-jar lid, review the preview and purchase the STL for your own 3D printer. A measured fit lets you adapt the tool to your workspace while keeping the jar you already use.