Zolterno was made as part of my residency at Instructables. So. Much. Fun. He's already been to Maker Faire Bay Area 2013, and will be hanging out for the next couple of years mostly on Pier 9 on the Embarcadero, so if you're in the Bay Area, swing by and say hello!
Step 1: Designing for fire effects
A key component to designing Zolterno was the creation of a flexible propane carrying system which would not degrade in contact with fire. Check out the images for a description for an overview of the basic joint, and how they assemble to make mobile, propane-leaking, fire-proof connections!
The basic joint is a set of loose fitting spheres made from half-spheres which are held together by a nifty system of washers and welds (more to be described on later slides)