Parametric PET bottle linker

This customizable can link multiple PET bottles together. Measure your bottle size and subtract a little bit (0.5 mm is a goot start) to get a tight fit. Pressurizing the bottles then creates a very stiff and lightweight structure. This linking system is a versatile alternative to glue, tape and other methods.

In the post-printing section it is shown how PET bottles can be pneumatically linked together. Two methods are available: one with the M5 screw system ([TIKI 4 x M5](http://www.compatiblepneumatics.com/nr_1121_tiki-4-x-m5-package-10-pieces_IK0212810010)) and one with plain 4 mm tubes.

The cover photo also shows the [Non-return valve](http://www.thingiverse.com/thing:3142024), [Shut-off valve](http://www.thingiverse.com/thing:3141922), [5/3-way valve manifold](http://www.thingiverse.com/thing:2932081) and [Parametric pneumatic cylinder](http://www.thingiverse.com/thing:3123328).

Like in every pneumatics project, using air pressure in your custom creations is at your own r