Many thanks to tmib_seattle for recommending Giles Puckett’s Tubemiter freeware — it allows you to print out cut templates from a computer, simplifying the task of cutting weird angles in round tube. The site seems to be broken, but the download works. Just enter the diameters of the tubes being joined, the wall thickness of the tube being cut, and the angle of the joint — then print, wrap, and cut.
Happily, while searching for the software download I uncovered some really interesting sites on human-powered vehicles, including airships. And so we present you with a cool video that only tangentially relates to the subject at hand — screen shots of the software aren’t visually stimulating, anyway.
If this sparks your interest, check out the International Human Powered Vehicle Association site where I found the video, because there’s lots more cool stuff on there.
Human-Powered Airship [IHPVA]