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Post by vance on Apr 14, 2024 16:01:51 GMT -8
A few years ago I bought a badly broken up DivAir, just to see if I could make the repairs to get it back in the water. It is one of my favorite regulators. I call it the 3D DivAir, b/c it features a James-made 3D printed cover. But the cover was the least of it. All three bolt holes and big parts of the flange on the fiberglass body were broken off, and then someone tried to "plastic weld" the pieces back on. The result was horrible. However, hope springs eternal!  IMG_2423 by Vancetp, on Flickr There's this stuff called JBWeld. Miraculous! I used it to restore the flange. With a lot of applications, filing, sanding, reapplying, sanding, filing (ok, you get the picture), it is fixed!  IMG_5053 by Vancetp, on Flickr   |
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Post by vance on Apr 15, 2024 6:48:02 GMT -8
And yes, I have dived it. It works like a DivAir should!
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Post by SeaRat on Apr 15, 2024 8:35:41 GMT -8
Wow, what a great project. Congratulations on getting it up and working, and diving it.
John
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Post by vance on Apr 15, 2024 16:02:48 GMT -8
This is not a new project. It appeared in a thread a few years ago . I'm re-visiting some of my favorites, just to get a bit of activity going on the board.
Next will be the most complicated, and so, satisfying, Vance mod as yet.
Guesses?
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Post by scubalawyer on Apr 15, 2024 17:00:09 GMT -8
Antique Diver Bill and I are working on a super secret skunk-works regulator project that I am excited about. I got some pressure-differential input from Luis but even he is currently unaware of the historical forces of time and space that will mold this project into one for the ages (if successful). 😎👀 OK, off to order some esoteric and very unique parts from McMaster Car. M
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Post by SeaRat on Apr 15, 2024 17:45:10 GMT -8
This is not a new project which has appeared in a past thread . I'm re-visiting some of my favorites, just to get a bit of activity going on the board. Next will be the most complicated, and so, satisfying, Vance mod as yet. Guesses? Okay, I'm going to guess that it is one of my own ideas from some time ago, which will save air for the diver. Take the double hose regulator, and on the exhalation horn devise a two-way spring-loaded valve that can be opened by the diver using, for instance, a J-valve pull rod, so as to route the exhalation directly into the back-mounted BCD. This would eliminate the need for a LP inflator for the BCD, and provide used air rather than tank air for buoyancy compensation. This would probably save several cubic feet of air on any dive to depth.   IQ-6 Buoyancy diagrams by John Ratliff, on Flickr Now just imagine a double hose regulator on the tank of the bottom right illustration, with a connection to the back-mounted BCD. Wouldn't that be a great addition to diving? At one time, I had a wetsuit with a built-in BC in the back of the suit.  Subtidal Clambed Survey007 by John Ratliff, on Flickr Initially, it was simply an inverted "U" shape that Bill Herter built into my custom suit (Deep Sea Bill's Dive Shop, South Beach, Oregon in the 1970s). The white area inthe photo above was a BC, with an inflator hose to add air. This corresponded to the bottom left diver in the illustration above. Now, with a double hose regulator that could be attached to the oral inflator of the BCD, wow... John PS, that tank I'm wearing in this photo was the only 80 cubic foot steel tank that I've ever seen. It was a longer tank, with a rated prossure of 2475 psi (without a "+" stamp). It had the same diameter as a steel 72 too (6.5 inches in diameter, as I recall). This photo is from 1975, when I was working for the Oregon Department of Fish and Wildlife as a research diver (not a biologist, which ODFW denied me), on subtidal clam bed surveys in Oregon estuaries. |
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Post by vance on Apr 16, 2024 6:24:35 GMT -8
Antique Diver Bill and I are working on a super secret skunk-works regulator project that I am excited about. I got some pressure-differential input from Luis but even he is currently unaware of the historical forces of time and space that will mold this project into one for the ages (if successful). 😎👀 OK, off to order some esoteric and very unique parts from McMaster Car. M Can't wait! |
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Post by vance on Apr 16, 2024 12:06:13 GMT -8
No, not a valve to direct air into a BC. Might it be the Home Depot mouthpiece?  Nope! |
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