Models
Tension 3D Printable Models. Makeshape.co have 3 Tension 3D Printable Models.
Reusable Teeth Flosser with Adjustable Tension
Thingiverse
Aptimex
Free
Ratchet Strap Winder L 1.0 – 100% printed parts!
Makerworld
The Ingenious Tinkerer
Free
Vertebranium Headphone Stand
Myminifactory
Clockspring
$3.9