IDA71 - mccr pictures

5000grapas · 27th May 2008, 00:28

Four years and almost $6000.00 dollars. I did take my time. I could send you an itemized list of purchased items.

This has a split lung using the MSR dromolite bags, all connectors (except HP) are quick-connect, DS4's, and a homedesigned PPO2 using Mark Monroe's schematic, thanks Mark. As always thanks to Dave Sutton - not only for the design, but for answering my various questions along the way. (Whatever happened to 'smartgroup' anyway?)

divingtoors · 27th May 2008, 05:47

HI

Very nice!!!

I like the idea of a spltt lung.
How does she dive?

Is there a difference in WOB between the "original" and your split lung version?

Could you shed some more light on your PPO2 display arrangement?
Looks quite interresting.

Green coming your way.....
Best Regards

Johan

paulraymaekers · 27th May 2008, 07:52

Quote: (Originally Posted by 5000grapas)

Four years and almost $6000.00 dollars. I did take my time. I could send you an itemized list of purchased items.

This has a split lung using the MSR dromolite bags, all connectors (except HP) are quick-connect, DS4's, and a homedesigned PPO2 using Mark Monroe's schematic, thanks Mark. As always thanks to Dave Sutton - not only for the design, but for answering my various questions along the way. (Whatever happened to 'smartgroup' anyway?)

nice, but just make sure you scrubber is filled correctly!!

regards
paul

5000grapas · 28th May 2008, 22:08

The split lungs were done using a 2liter and 4 litre MSR Dromolite. If anybody is thinking of doing this design I would recommend using a 2l and 6l bag. My lung capacity is around 4L and I'm sorry to say it may not be enough since the bags are bent and full of valves. I have not had an opportunity to test the rig yet. As for WOB I'll have to let you know.

As for the PPO2 the case was made using a CNC machine and should be good well past 600' I'll let you know when I come across a pot. I don't think I'll risk it past this depth. The KISS valve with the .04 orifice will only let me go so deep anyway. The battery box is a cut and milled OMS canister. The P-port was machined locally. I'll see about pulling the schematics and posting them for others if they want to have a look. The idea was to three boards and using a jumper have each display work independently, I had the boards made by a California company for $60. Best deal in this whole project.

As I said I haven't tested the rig yet but will report when I do. The only think is... I just picked up a set of HP 120's and I think I'll have some fun with these and take a break from the rebreather for a while. (don't throw anything)

Edvin M · 28th May 2008, 22:49

Why have you chooses to keep the original ports on the MSR bags? Why not cut them away and glue the fitings to the scrubbern there?

You could also trim the size of the bags if they get to big using household iron. Do a search, genesis have posted the technique in a thread calldes something like: pssst, a little counterlung tips!

5000grapas · 31st May 2008, 15:39

Thanks for the tip. I may give the bags another go to expand the capacity. Knowing they can be sealed using heat will make things alot easier.

On the inhalation side I did cut away the original port and this is where the DSV valve is attached. I decided to leave the port on the exhalation side to aid in cleaning.

I still have yet to get the rig in the water. Hope to do within the next month or so. I'll let you know how it goes.

5000grapas · 18th June 2008, 19:13

Still haven't got the breather wet. I'm off to the Virgin Islands - about to find out what Island exactly tonight. I'll be their for six weeks or so, if anybody knows anyone there I'd appreciate a contact. I'll be diving from a boat called 'The Mambo'.

Somebody asked me about the PPO2 meter. I found the plans. The first one is from Mark Monroes site, its the schematic I worked from. The second two are what I sent to a company called expressPCB in California and they made up three boards.

The idea was to have independent boards. I could then use a jumper to then have all three boards go in series and attach the battery case between the meter and the sensors. It seems to of worked out well (PICS BELOW). Machine costs where around $1000 dollars and since I started it in 2004 and even then the plans (I believe) were a few years old it can be considered an older design. It's not a dinosaur design though, and should go past 600', so I'm happy. Next time. I think I'll pick up a HS explorer. It was fun though.

**Dave Sutton** · 19th June 2008, 01:31

This one most definately deserves the coveted "Diver Dave Seal of Approval".

Which is only rarely given, and always for superior effort.

Well done!

Dave

.

27th May 2008, 05:47	#2 (permalink)
divingtoors New Member Current Rebreather/s: Home Build Other Rebreather/s: Not Bought Yet Home Build Join Date: Mar 2006 Location: Cape Town Posts: 81	Re: IDA71 - mccr pictures HI Very nice!!! I like the idea of a spltt lung. How does she dive? Is there a difference in WOB between the "original" and your split lung version? Could you shed some more light on your PPO2 display arrangement? Looks quite interresting. Green coming your way..... Best Regards Johan __________________ "..Recreational scuba training has developed the denial of risk into an art form...." ( Larry "Harris" Taylor, Ph.D.) "The closer you are to danger, the further you are from harm" - Pippin Took (Hobbit)
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27th May 2008, 07:52	#3 (permalink)
paulraymaekers rEvo's daddy Current Rebreather/s: rEvo Other CCR Home Build Other Rebreather/s: rEvo Other CCR Home Build Join Date: May 2005 Location: belgium Posts: 1,495	Re: IDA71 - mccr pictures Quote: (Originally Posted by 5000grapas) Four years and almost $6000.00 dollars. I did take my time. I could send you an itemized list of purchased items. This has a split lung using the MSR dromolite bags, all connectors (except HP) are quick-connect, DS4's, and a homedesigned PPO2 using Mark Monroe's schematic, thanks Mark. As always thanks to Dave Sutton - not only for the design, but for answering my various questions along the way. (Whatever happened to 'smartgroup' anyway?) nice, but just make sure you scrubber is filled correctly!! regards paul __________________ www.rEvo-rebreathers.com .... the earth is flat, Elvis is alive, and radial scrubbers give longer dwell time than axials...
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28th May 2008, 22:08	#4 (permalink)
5000grapas New Member Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Jan 2008 Location: Parts Unknown Posts: 13	Re: IDA71 - mccr pictures The split lungs were done using a 2liter and 4 litre MSR Dromolite. If anybody is thinking of doing this design I would recommend using a 2l and 6l bag. My lung capacity is around 4L and I'm sorry to say it may not be enough since the bags are bent and full of valves. I have not had an opportunity to test the rig yet. As for WOB I'll have to let you know. As for the PPO2 the case was made using a CNC machine and should be good well past 600' I'll let you know when I come across a pot. I don't think I'll risk it past this depth. The KISS valve with the .04 orifice will only let me go so deep anyway. The battery box is a cut and milled OMS canister. The P-port was machined locally. I'll see about pulling the schematics and posting them for others if they want to have a look. The idea was to three boards and using a jumper have each display work independently, I had the boards made by a California company for $60. Best deal in this whole project. As I said I haven't tested the rig yet but will report when I do. The only think is... I just picked up a set of HP 120's and I think I'll have some fun with these and take a break from the rebreather for a while. (don't throw anything)
(Offline)

28th May 2008, 22:49	#5 (permalink)
Edvin M New Member Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Aug 2007 Location: Lysekil, Sweden Posts: 99	Re: IDA71 - mccr pictures Why have you chooses to keep the original ports on the MSR bags? Why not cut them away and glue the fitings to the scrubbern there? You could also trim the size of the bags if they get to big using household iron. Do a search, genesis have posted the technique in a thread calldes something like: pssst, a little counterlung tips!
(Offline)

31st May 2008, 15:39	#6 (permalink)
5000grapas New Member Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Jan 2008 Location: Parts Unknown Posts: 13	Re: IDA71 - mccr pictures Thanks for the tip. I may give the bags another go to expand the capacity. Knowing they can be sealed using heat will make things alot easier. On the inhalation side I did cut away the original port and this is where the DSV valve is attached. I decided to leave the port on the exhalation side to aid in cleaning. I still have yet to get the rig in the water. Hope to do within the next month or so. I'll let you know how it goes.
(Offline)

19th June 2008, 01:31	#8 (permalink)
Dave Sutton Diveshop of Horrors Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Classic Kiss rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,672	Re: IDA71 - mccr pictures This one most definately deserves the coveted "Diver Dave Seal of Approval". Which is only rarely given, and always for superior effort. Well done! Dave . __________________ "Changes in Lattitudes, Changes in Attitudes, Nothing remains quite the same".... www.nobubblediving.com
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