Quick-release paracord tensioner / ty-rap replacement

Quick rope tie

Update: somebody pointed out that a loop on the end is not necessary: a simple knot is sufficient 😊

I needed something to quickly bundle stuff like rope, cables, webbing etc.

So I made this simple and fast rope tensioner for 3mm rope. Paracord 550 works well too. 
To tighten: attach rope to hook, lift clip  and pull rope to tension. 
To release: lift clip and unhook rope.

The rope tie works on friction, after tightening the rope will clamp down the loose end.
 
(Single use ty-raps are easy and strong, but need a knife or scissors to get off: also not good for the environment. Releasable ty-raps can be re-used. Easy to tie and release, but annoying to carry around, sticking out of shirt or pants pocket.)

Printing 

I printed in PETG, 0.4mm nozzle, 3 perimeters and 30% cubic infill. Support: ‘on bed only’ for the fillets of the two holes.

After printing

After printing you may need to clean out the support from the two holes. My https://www.printables.com/model/403370-deburring-tool-handle could be handy for that job ;-) 
Cut a piece of cord and thread it through the two holes (see photo). Paracord is a bit of a tight fit, I had to push it through with a match stick. Make a knot on the hook end.
I sewed the other end together, but you could leave it as is.

Scaling 

The model was made for 3mm braided rope. Paracord 550 is somewhat tight, but will work well. If it's too tight, just scale it up by a few percent to fit your rope.
I suppose the model will work for thicker rope too, by scaling the model, but I didn't try this myself.