|
|
Post by antique diver on Jan 1, 2023 10:13:22 GMT -8
Stop it....Y'all are hurting my head!  |
|
|
|
Post by Aquala1 on Jan 1, 2023 10:44:06 GMT -8
Stop it....Y'all are hurting my head! Ha! I’m having a little trouble keeping up too, but it sounds like a fun idea.😄 |
|
|
|
Post by james1979 on Jan 1, 2023 10:48:21 GMT -8
Yep, there is an integrated DBE in the cover. While I was waiting for church this morning I finished up a rough draft of the clamp for a Conshelf XI and later 1st stages, so I'll probable print one of those for fit checks here. I'll also do a TPU sleeve for the mouthpiece to make it more of an ellipse/open the size up for hoses. The elliptical shape will allow a standard ziptie to put sufficient clamping force on it without needing a custom clamp.
|
|
|
|
Post by james1979 on Jan 1, 2023 10:51:32 GMT -8
Love it! This would be an easy conversion for anyone to do. John's idea takes off! The spring barrel is 1.2525". I guess there's .0025 of chrome. The parts look great! Is there an integrated WW? I tried a bit of silicone tubing cut off of a duckbill over the mp oval. I suppose heat shrink tubing will work well, too. My new silicone hoses fit fine with a sleeve, and an oval clamp would do 'er. GM hoses might need a bit more thickness. The last part is fabricating a short hose. DiveGearExpress sells braided LP hoses as short as 6 inch. I think much shorter than that and you're gonna have the inner barbs kissing in the hose! |
|
|
|
Post by nikeajax on Jan 1, 2023 11:11:18 GMT -8
I'm utterly lost: hopefully when y'all have a finished product I may begin to understand, but until then, zilch!
JB
|
|
|
|
Post by scubalawyer on Jan 1, 2023 11:50:17 GMT -8
I understand and love this concept 1000%. My only concern with running a "T" from the SH 2nd stage mouthpiece orifice is that it would seem to create a problem with hose clearing should the exhaust hose flood. In other words, rolling to the side and exhaling will just force the expelled water into the 2nd stage and out both the 2nd stage exhaust and out into the inhalation hose. What am I missing?
|
|
|
|
Post by james1979 on Jan 1, 2023 11:53:19 GMT -8
I understand and love this concept 1000%. My only concern with running a "T" from the SH 2nd stage mouthpiece orifice is that it would seem to create a problem with hose clearing should the exhaust hose flood. In other words, rolling to the side and exhaling will just force the expelled water into the 2nd stage and out both the 2nd stage exhaust and out into the inhalation hose. What am I missing? No "T" on this design. Inhale via hose adapter on the second stage moutpiece, exhale via a replacement second stage faceplate that replaces the purge button with a 1 inch hose horn and built in DBE. The modified 1085 second stage is clamped to the first stage via a bracket that screws on where the exhaust T used to screw on, and seals off the original exhaust spider. |
|
|
|
Post by vance on Jan 1, 2023 14:29:20 GMT -8
Just to give you who are wondering what the heck we're up to, the regulators would be in this configuration:  The second stage exhaust hole and exhaust T mounts will be used to attach the clamp adapter, which will attach to the spring barrel of the first stage making one unit. A new diaphragm/purge button cover with an exhaust horn and a built in DBE replaces the original cover. In this 90 degree configuration, no elbows are needed to route the intake and exhaust hoses to the sides. A short flexible LP hose will provide air to the second stage, probably without the 3 way shown in the photo. |
|
|
|
Post by scubalawyer on Jan 1, 2023 14:34:12 GMT -8
I understand and love this concept 1000%. My only concern with running a "T" from the SH 2nd stage mouthpiece orifice is that it would seem to create a problem with hose clearing should the exhaust hose flood. In other words, rolling to the side and exhaling will just force the expelled water into the 2nd stage and out both the 2nd stage exhaust and out into the inhalation hose. What am I missing? No "T" on this design. Inhale via hose adapter on the second stage moutpiece, exhale via a replacement second stage faceplate that replaces the purge button with a 1 inch hose horn and built in DBE. The modified 1085 second stage is clamped to the first stage via a bracket that screws on where the exhaust T used to screw on, and seals off the original exhaust spider. That makes much more sense. Looking forward to seeing the results. Makes me want to pencil out a few design ideas myself.  |
|
|
|
Post by SeaRat on Jan 1, 2023 17:06:35 GMT -8
Well, I just made a preliminary test, by putting a short hose onto the second stage I’m looking to use. First, there is a slight leak of air in this stage (first time with pressure). Second, the Venturi is not too great, even with just a 1 foot single hose on it. But it is sufficient to start the test. Here what it looked like:  D460994F-E94A-4D32-BA02-123212854268 by John Ratliff, on Flickr My thought is not to use any more non-returns in it except in the mouthpiece. I will use the exhalation diaphragm built into the Enduro’s diaphragm for the exhalation, and have a “Y” connection on the mouthpiece. It should be interesting. It will probably be a chest-mount system. John |
|
|
|
Post by james1979 on Jan 21, 2023 12:35:59 GMT -8
Starting a new thread for Vance's 3d printed conversion concept.
|
|
