Customizable Sodastream CO2-bottle holder for Cornelius kegs

Update March 2nd 2019:

• Rendered cut files now have an increased clearance on the dovetails.
• More options to customize positions of collars and strap buckles.
• Additional long hook to allow the bottle to hang lower. Description

This is a holder to hang a Sodastream bottle on a Cornelius keg. I've added some customizer parameters if you want to change some of the features.

The holder has two collars to hold the bottle in place. There is a hook to hang the holder on the grips of the keg, as well as two buckles for straps to wrap around the keg. The holder is slightly curved on the back to match the curvature of the Cornelius keg.

It's rather large, so unless you have a large printer it will have to be cut after customization.

There are additional STL files included which are already cut with dovetails added if you don't need to do any changes.

Notes: 

I've printed mine in PETG as PLA might be too brittle for the hook and dovetails.

The full STL needs a lot of support. The split files (base, collar, hook) only the collar needs support depending on rotation of the models. I'd recommend using the split function in Prusaslicer instead of using these though.

Load the .scad file in OpenSCAD to modify different parameters for the holder.

Post-Printing

Glue cut pieces

If you have printed the three cut pieces you will have to glue them together to ensure they hold together.