Rounded Cord Cincher

I needed a simple cord cincher, but couldn't find adjustable ones on Thingiverse. So I made a few designs...

This is the rounded version. I have a "square" version here:
https://www.thingiverse.com/thing:3493149

This rouded cincher uses less filament than the square version. It's made to use a leftover Ender3 bed spring, but you can customize it to fit whatever spring you have on-hand. Use the included f3d file (which is fully parameterized).

Ender3 bed spring dimensions:
Outer dia