Tetra Edger
thingiverse
Edge connector for building tetrahedral structures using cardboard. This connector is the only shape needed, although truncated variations might be wanted for edges where your structure isn't extending.
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With this file you will be able to print Tetra Edger with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Tetra Edger.