IDA-71 Homebuild

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To be able to use the 2L bottle on the left side I needed to drill a bigger hole in the side to fit it in the case. Then it struck me, I must have a pressure gauge on the bottle and I only had one the came originaly with hose, so I found an adapter with bsp 1/4 male to something smaller then female 7/16. Then I drilled it out and made 7/16 threads so I could use a standard gauge.
For filling, im using a Female DIN witch i use on the "original" HP port and remove it when done.

By now I just had to figure out a good way to use the original DSV, so simpel solution was to use a mouthpiece from a 2-stage and use garn to secure it and it been working as a dream, after some adjustments.

I also added 4kg weight on the cover to compensate for the lifting caused by the CL. This will be made differently later tho.

As you have seen now, I have 2options of bottle use. Here you can see when using only 2L and the org. O2 bottle with DIN-valve, filled with air for dry suit and bailout(IF shallow).

What's the future? Well I suppose someone here on the forum has some suggestions but beside from that I want to nickel plate all the parts, paint bottles with correct colour code and some fine tuning to get it fully adopted to my needs.

Specially thanks to @Snusmumrik who gave a lot of useful information and good man to exchange ideas with.
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Hello Marre,

really cool ! I have the same project going on.

A friend told me that, 2,5 liter , diameter 114 mm bottles are optimal, even hard to find though.
 
Hello Marre,

really cool ! I have the same project going on.

A friend told me that, 2,5 liter , diameter 114 mm bottles are optimal, even hard to find though.
I`ve only heard about 2L but I saw on mine that I could mount thick 3 or 3.5L bottles, if turning the scrubber 90degrees. That means major changes in the CL and the structure with the valve ending just underneath.

Whats the major depth your planing to use it on?
 
Hello again,
I have started a new conversion of my ida71. I'm making it to a mccr. So this is ida71 v 2.0.

My idea is to keep it tough for tough conditions and some joy of making it.
So i began to think and first was the o2 injection. Instead of injecting to the CL i thought the best must be in the scrubber. Thats why i have soldered the 90degree 9/16 adapter, but the functions of the scrubber is now compromised. I will now breath out into the breath in hole. This will make the canister colder, so i will add extra neoprem. I will connect a normal 2stage hose wich will then go to a manifold. This manifold will be one in, one out with a orifice and a bypass button. Im trying to get hold of some brass so i can manufacture the manifold, i also woundering how to adapt the bypass button into the manifold... But first i must finde a button.
 

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While waiting for the brass i thought about the diluent. A simple way would be to just connect the diluent to the ADV and use the ADV as a Mav or breath out through the nose.

I already had the pipe so i cut it to the correct length and then i found an adapter, think it was npt to 3/8 female. Took it into the lathe and made it to fit my 8mm pipe. Then silver soldered it to the pipe. By now it dosent look so well so i thought i will go with the original theme. Abrakadabra it was now nickel plated and looks like original.
During the week i will have made the hose that will be a qc to the bottle side.

Ive attached a before and after of the quick connect at the bottle and the pipe already being plated.
 

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