Bike water bottle holder on zip ties

I present to You water bottle holder for bikes of all kinds. It is on zip ties so no screws and dedicated mounting points are necessary. Great as a primary holder or additional one. 

I designed it something like 2 years ago and this summer a bit improved it for a second print. 

Works with bottles 73-75mm in diameter - the typical ones.

The holder has a stopper that prevents the bottles from sliding out on their own. Most of bottles have dedicated grove for that.

It is designed for frame tubes 29mm in diameter, but works great with wider tubes also.
[  If you need holder to be mounted on  other dimension of profile - just write to me. I'll prepare model for you! :) ]

Holder can be mounted with 3 zip ties, up to 6mm wide. 

Interlayer is supposed to give an extra friction between bike frame and bottle holder. Make it hold tight. Zip ties, typically are not able to give required grip force by themselves. So it is good to use some kind of additional thing ;) There are several ways to approach this. 

I found that TPU print with gyroid infill, without top and bottom solid layers can be filled with construction silicone (best: transparent, neutral cure) work perfect for this job. It gives great friction and is soft, so it won't scratch paint of bike frame. You can make it like a sandwich: place an interlayer on frame tube, pour silicone, and squish it with bottle holder. Zip it. And collect excess of silicone as it is liquid or wait until it cure and gently cut it.

(I used white, as a test, and is stayed like this :) )

Alternatively You can cut rectangular piece of rubber: 25x140mm. It's not as good as previous, but still ok.

TPU print of interlayer (without silicone infill) is better then nothing.

Printing suggestion:

Bottle Holder

Print it vertically (as it is in a file).

Nozzle: 0,4 or 0,6 (model is optimized for 0,6)

Material: PETG, ABS, ASA is ok, however Nylon is far superior on any level.
Avoid using CF and GF blends. It will damage Your water bottle and can hurt you if You will rub holder during ride.

Supports - to improve stability of print process You can add support under front opening. But this not mandatory if You will set Your slicer properly and You have reliable print process. 

Interlayer - 

As mentioned above: TPU material. As rubber-like as it is possible.
Better approach: without solid top and bottom layers, gyroid infill 20-25%.

Alternativly, when You don't have silicone - normally, with top and bottom.