Friday, June 6, 2008

Dual Cones

I found this technique for forming dual cone mufflers, it looks like it should work with reasonable consistency after a couple of trial runs.

One immediately apparent change I would make is to weld the bottom blank plate to a flange to hold it down very securely. I'm quite wary of contained compressed air these days due to an incident with a stubborn fibreglass mould and a hollow wooden buck, but that's a story for another day.



stev4n said...

I dont like to use fibreglass moulds on something like this

Dan said...

Um, ok, that's probably why it's made by forming steel.