Waist Light Holder (TPU)

thingiverse

This is a standard holder for an L-shaped light based on a typical 18650 battery source, in my case a ZebraLight. When running at night on trails, having a light source not aligned with your eyeline greatly enhances shadow definition. Shadows are how we perceive tripping hazards. This design should be printed using TPU material, such as SainSmart or other flexible filaments. NinjaFlex is probably too flexible, but I find SainSmart's TPU to be just right for most applications - it's tough and can sit on the shelf for years without degrading. It should accommodate any tube-based light containing a 18650 battery source. See actual picture. The holder is designed to fit on a 1.5" belt of some kind, which I used elastic for. Two versions are included: one longer than the other. I use the longer one when it's hot and added a breathable pad made from 3D airmesh fabric underneath. I tried making this design work with PLA and PETG but the breakage issue is real, so only the version using flexible filament is available. If you run at night on trails and have been using a headlamp, try moving it lower down to see the difference it makes.