I designed this to make it easy and convenient to always have some water close by. I looked at other downloadable clips, and most either required a strap, carabiner/D-loop, or something similar to clip onto a belt loop. I often find that a belt loop is an inconvenient place to attach a water bottle - either too far forward or too far back. Many others are designed for backpacks or specific water bottles.
This was a quick design to solve that problem. You can clip it on anywhere on your pants, either with or without a belt. It stays on when you sit down and does not move much when walking. (Running is another story.) The neck is 4mm thick and fits most 500ml water bottles, at least the 3 different ones I tried at home.
Print settings:
The STL file shows proper build plate orientation.
Model printed on a Bambu X1C in PolyLite PETG (dark blue) and eSun PETG (grey). Inspired by this design.
The author marked this model as their own original creation.