Cardboard box right-angle tool cardboard box expansion cardboard box fastener

When my storage cardboard boxes are open, they often scratch my arms or legs. Previously, I used tape to secure them. Seeing the printer, I suddenly thought of using a 3D printer to make a small tool to solve this problem, which is how this model came about.

I've tested it, and the pins can be securely fixed even without the small cap. If you find it bothersome, you don't have to print the small cap.

Versions are designed for cardboard thicknesses of 5mm and 3mm. The way to differentiate them is that the 5-layer version is for 5mm, and the 3-layer version is for 3mm. If you still can't tell, the thicker one is 5mm, and the slightly less bulky one is 3mm; this method applies to about 80% of situations.

Both thicknesses have thick and thin versions. I personally recommend using the thick version because it's sturdier. If you want to save material, choose the thin version; it also works fine.

That's all.

If you feel my model has truly solved your problem, please don't hesitate to give it a boost. Thank you in advance.