Interesting thread and nice work by all.
I'd like to clarify a couple things for anyone interested. First up YES a person with the desired diameter pipe (Tubing) a bench vise, and ball peen hammer can manipulate the aluminum straps in the desired configuration. Just takes holding your mouth right.
In my quest for "The Perfect Thermal Detonator" I have made these discoveries........
To get a 6.8cm or 68mm pipe diameter use 2" schedule 40 PVC couplings. Their outer diameter is 68mm The TE ROTJ Thermal Detonator is this size. TE utilized a six pole terminal block with two 3/4" fender washers held in place with a visible screw.
The 2" pipe Thermal Detonators work best for Sandtrooper field pack mortar tubes. If you look closely you will notice many of these resemble the Mike Harrison and Crashmann design. This utilizes a six pole terminal block and a stack of two to three fender washers with a visible screw holding them in place.
Recently I made my own Thermal Detonator assembly and have only to make a few slight adjustments before I am 100% satisfied with it. The pipe's outside diameter being 7.3CM or 73mm. or 2-7/8". I came up with this while looking at screen grabs and thinking about what I had heard in the past regarding canvas belts being 3" width. I solved my problem by utilizing 2-1/2" schedule 40 PVC and making new forming bucks from this material. I too utilized the six pole terminal block and a stack of 3/8" washers which seem to have the best outer diameter but may require drilling out to 1/2" inner diameter for the best effect.
Although I used too narrow a piece of aluminum for my straps, compare the cannister itself to the screen captures:
Screen trooper:
[Imgur](https://i.imgur.com/eSzoFwC.jpg)
Scootch:
Screen Dudes:
Apologies if this seems like a rude butt in and/or off topic. Just wanted to clarify things a bit, get the basic info out, and hope it helps someone....