Fabric Edge Pinch Friction Clamp

thingiverse

I needed to gently but securely hold the edge of a water bladder. I could not put holes in the bladder, because the water would leak out. The bladder is nearly the same construction as a good air mattress. This clamp uses [M4 flat head hardware](https://www.amazon.com/gp/product/B0734Q7DDG/ref=as_li_ss_tl?ie=UTF8&linkCode=sl1&tag=vanmargrit2019-20&linkId=bfbf598d4cbb0fcc9c416e4abcf8102c&language=en_US) This clamp could be used anywhere you need to securely grip the edge of cloth or fabric: A tent, an awning, umbrella, tarp, etc without damaging the fabric or putting holes in the fabric.