Quote Originally Posted by Cal Weldon View Post
Just to answer a couple of things. First, all cells in the 1803B are identical. It's their configuration that makes them seem different. ...
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The Petter Persson thread over at diyAudio was absolutely fascinating. His method of using rings that he slid down the horns to act as clamps was a stroke of genius. The finite detailing at the throat must have taken an incredible amount of patience. That was true craftsmanship. My hat was off to him.
S'up Cal . That's some juicy information that the cells are all identical. I would think from a prudent manufacturing perspective that that should be the case. If I had a dollar to bet, I would wager all the **03 cells are the same regardless of how many. Same with the **05s etc. They just add more.

Also, given the entry points are square as are the terminal openings, I'd bet another dollar that all cell walls are the same, meaning one template of the curve and length, along with the ID of both ends would be all that's required to build all the cells.

Like Audiomind mentions, the throats are a different matter and would need to be modeled.

It's a shame that the pics of Petter's build are not hosted any longer. I tried to PM him through DIY to see if he still might have them saved locally, but his mailbox is full and not accepting any more mesages.