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3D Printed Corner Bracket Set for Cardboard Projects

3D Printed Corner Bracket Set for Cardboard Projects, design preview, hero tilt

Design preview. Rendered from the file, not a photo.

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What it does

  • Holds cardboard at 90 degrees so your pieces stay square and aligned while you work
  • Printed on demand just for you, arriving ready to use without assembly
  • Perfect for workshop projects, craft builds, and small-scale cardboard structures
  • Reusable brackets let you hold different cardboard sizes for multiple projects

Your cardboard project stays steady and square with these corner brackets. Each bracket locks your pieces at a perfect 90-degree angle so you can focus on building instead of holding everything in place.

You get a full set of printed brackets made to order from the US. They work with cardboard, plexiglass, and other thin materials. The design comes from a maker who built these for real workshop projects. Just print them and start using them right away.

4.2k downloads in the maker community. That is interest in the design on the site it came from, not our sales.

What you get

  • This design prints as one piece.
  • Nothing else to print or buy for this to work.

What it is made of

Designs like this print well in PLA. Compare the materials.

Printed plastic is strong for its size, but it is not metal. We have not load tested this design, so we do not publish a weight rating. Keep it out of a hot car and away from open flame.

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Who made this design

Designed by Pax74. We did not draw it.

Shared under Creative Commons, credit and share alike. See the original design