I use a fair amount of 2mm elastic in DIY gear, for snugging down shorts, cuffs, hoods, etc. Reliable line locks for that size are hard to find. This one is small, light, and foolproof. No springs to break, a single piece, and simple to print. Run the doubled line as shown and it will slide with gentle pulling in either direction. To lock, pull the exiting line into the keyhole loop.

If the size is a little off for your cord, just scale these one way or the other.

Print Settings

Printer Brand:

Prusa

Printer: 

i3 MK3

Rafts:

No

Supports: 

No

Resolution:

20

Infill: 

100

Filament:
Inland PLA 
 

Notes: 

I printed these with the red PLA that was in the printer. I'll probably do more in black PETG. Prusa Mini, 0.20 mm height printed fine, even the little keyhole overhangs.

Category: Outdoor & Garden