Free 

My cord stopper with a bolt (thread) that stopped the cord. I made two sizes cord stopper - thread diameters - resp. D10 and D14. The D14 has two variants for use - one hole and two holes, by using the same size bolt. You don't need to buy any springs and most important is that it fixes the cord very strong.
Printer: Bambulab X1C
Filament: PLA (GD Filament), 2-3 walls, 15% infill, no support is needed, layer height 0.16. You can use ABS or PETG as well.












Names are used only to indicate the source of a result. Polyzon is not affiliated with the listed sites.