Bottle mount for downtubes

As my bike doesn't have options to mount a bottle holder, I created this to mount a bottle to the downtube of my bike.

Currently it fits for a 52mm diameter tube, maybe also a bit smaller.

For mounting you need:

• 4x M3 square nuts
• 4x M3x10 (or bit shorter) screws
• 2x M4 nuts or M4 screws with hex head

Printing:

• the base needs supports
• Currently I use PLA, but PETG or ABS could be more robust if you are not sure if it would work