Looking for SCAD help

A project log for 3D-Printed Water Distillation Doodad

This doodad transforms a 2L pop bottle and a .5L plastic bottle into a solar distillery for drinkable water. 02/09/2016 at 02:540 Comments

I would like to make this project customizable to fit different diameter bottles. I need help creating a SCAD file, or something else that would work in the thingiverse customizer (or outside stand-alone for that matter). I am really not sure how this stuff works.

The end goal here is to make this thing universally adaptable for all parts of the world. Combined with a #PET Bottle Recycling 3D Printer, many of these could be manufactured where they are needed the most.

So if you care about this project enough to contribute, please let me know!