If you only want to mount a single cylinder to a wall then just print out the Stand Alone unit, mount it and enjoy!
If you have 2 or more cylinders then print out both the Left and Right units. And for every additional cylinder print out a Center Unit. You will need to also print out 4 Assembly Pegs for connecting 2 units together; print 4 for a Left+Right, print 8 for Left+Center+Right, etc.
If you are assembling multiple units I have had luck with Gorilla Super Glue in the peg holes and a light layer between units where they meet.
When mounting take care to ensure you are screwing into wall studs or using strong drywall anchors. The collection of cylinders in a given assembled unit may be heavy.
Since these units have considerable overhangs it is advisable to ensure your slicer has support modes enabled or you have manually created supports.
Enjoy!
The author remixed this model.
This is a flexible Soda Stream cylinder wall mount inspired by thonem21's SodaStream Gasbottle Holder (wall mount).
This variation allows you to assemble a unit for any number of cylinders. In my case I had 4 extra cylinders thus thonem21's model wouldn't fit. So, I modified it to accommodate my number of cylinders.
This flexibility is also helpful when printing since each unit will fit most print beds.