I made this to save a few dollars not having to buy a purpose-built strap clamp for making picture frames.

I used a 1" Grunt Strap I already had laying around to thread through each of the four clamps as pictured.

The STL model is suitable for small frames. I also scaled both X and Y by 200% to print some for larger framing jobs.

I hope you find these useful.

v4 Update 15/02/20: Added model with X and Y scaled 200%. Reoriented models for easy 3D printing.

Creality

CR-10

No

No

0.2mm

50%

50% infill is important to provide enough strength.