From RG-UF/M....To RGU-2....And Beyond

alfa011 · 17th September 2007, 21:34

Hi Micha! I am interested in knowing what you are using as a DSV in your pendulum rebreathers.

Could you share your source?

Thanks.

AlMir.

Quote: (Originally Posted by oxydiver)

Hallo all,

this is also my opinion. Here is a small compressed vid with my pendulum as MCCR dive in Spain.
Picasa-Webalben - mike - Costa Brava.
At present i build a hard cover, so that the parts are better fastened and to make the unit more streamlined. The unit has than two options, pendulum hose and double hose.

@dandunfee

very good idea and work, i think i make this also, but the time....

Micha

oxydiver · 18th September 2007, 07:29

... using as a DSV in your pendulum rebreathers.

Could you share your source?

Hallo,

I use a ball valve to solder (Lötkugelhahn). Here is a picture: profimaus.de - Lötkugelhahn 18 mm · Turbulatoren · Spar Turbulator · Strahlregler · Luftsprudler · Spar-Strahlregler · Badheizkörper · Urinal-Befestigung · WC-Befestigung · WC Papierhalter · profimaus.de · Lötkugelhahn 18 mm , but my toggle is smaller. Search in your next plumber shop. The valve is from chromium-plated brass and really waterproof.

Micha

jaap · 18th September 2007, 17:12

About simple DSV's for pendulum-Rebreather. Here are a few pics of a very simple thing I have used (large plastic water tap on a BCD-inflator for gas addition):

FOTO

FOTO

FOTO

Dan, thats the nicest RGU-"based" Rebreather i have ever seen!

alfa011 · 18th September 2007, 22:12

Micha:

Thanks for the reference.. thank you..

But because they are made of metal (brass) do you feel they are a little " heavy " on weight??

What is your experience with them?

By the way, I am enclosing a photo of what I am presently using.

AlMir
Puerto Rico

Quote: (Originally Posted by oxydiver)

... using as a DSV in your pendulum rebreathers.

Could you share your source?

Hallo,

I use a ball valve to solder (Lötkugelhahn). Here is a picture: profimaus.de - Lötkugelhahn 18 mm · Turbulatoren · Spar Turbulator · Strahlregler · Luftsprudler · Spar-Strahlregler · Badheizkörper · Urinal-Befestigung · WC-Befestigung · WC Papierhalter · profimaus.de · Lötkugelhahn 18 mm , but my toggle is smaller. Search in your next plumber shop. The valve is from chromium-plated brass and really waterproof.

Micha

alfa011 · 18th September 2007, 22:23

Great pictures Jaap. Very interesting concept.
Almir.

Quote: (Originally Posted by jaap)

About simple DSV's for pendulum-Rebreather. Here are a few pics of a very simple thing I have used (large plastic water tap on a BCD-inflator for gas addition):

FOTO

FOTO

FOTO

Dan, thats the nicest RGU-"based" Rebreather i have ever seen!

DanDunfee · 18th September 2007, 23:16

Quote: (Originally Posted by jaap)

Dan, thats the nicest RGU-"based" Rebreather i have ever seen!

=============

Jaap....et al

Thanks for kind words.

I'm still waiting for a couple of minor parts, then looking forward to getting the RGU-2 Oxygen Module into the water for first manned trials. Also beginning to be enthusiastic , looking forward to integrating the RGU-2 Module into the much more capable D105 mixed-gas and chassis sub-systems.

I really liked your clean and innovative, minimalist approach to your little rig, especially the O2 injection up near the DSV. I assume that the scruber is axial.
What is the scrubber charge weight ??....and duration you've gotten so far.??

I also liked AlMirs' DSV. Would you please share the source ??

alfa011 · 19th September 2007, 00:37

Quote: (Originally Posted by DanDunfee)

=============

I also liked AlMirs' DSV. Would you please share the source ??

Sure thing Dan.

It is known as a Flow Rite polyethylene (model 68-75), drum faucet (3/4" size).

Drum Faucets

Morse Drum Faucets, Wrenches, Pumps and Drum Heaters

Flow Rite 3/4" Faucet Volume Discount Buy Two -----3.99 each Buy Six -----2.99 Each Buy Twelve---1.99 Each - FAUCETS

If you have any issue getting them, just let me know.. I have some around.

Hope I have been of help.

Good luck.

AlMir
Puerto Rico

oxydiver · 21st September 2007, 07:25

Quote: (Originally Posted by alfa011)

Micha:

Thanks for the reference.. thank you..

But because they are made of metal (brass) do you feel they are a little " heavy " on weight??

What is your experience with them?

By the way, I am enclosing a photo of what I am presently using.

AlMir
Puerto Rico

Hallo AlMir,

this version i use also 2003/4 50 € Rebreather (O2CCR) - Modell "MSP 2003":, but i searched for an heavy duty version. The weight is not to be feel underwater. It works very well since 2 years. And it looks better:-)

Micha

***caveseeker7*** · 7th October 2007, 20:31

Dan, terrific job with the RGU-2.

The simplicity of it is beautiful.

I really like the way you placed the scrubber inside the breathing bag,
great improvements to all aspects of the unit.

I'm looking forward to more updates.

Just one quesstion for now, either Dan or Ken:
"the original RGU, …including its very innovative... but quirky,..
Integrated pressure and constant mass flow (CMF) regulator"
Of all the individual components of the RGU, that seems to be the keeper.
Just how "quirky" is it and how is it "quirky"?

Osiris, there's a Hans Hass Video Collection available from Polarfilm.

Also a double DVD (link at bottom of page above) with 4 old movies:
„Pirsch unter Wasser“ von 1942 (Deutsch)
„Menschen unter Haien“ von 1947 (Deutsch)
„Abenteuer im Roten Meer“ von 1951 (Deutsch + Englisch)
„Unternehmen Xarifa“ von 1954 (Deutsch + Englisch)
http://www.polarfilm.de/php/movies/1..._Hans_Hass.wmv

jaap · 7th October 2007, 21:31

Quote: (Originally Posted by DanDunfee)

=============

Jaap....et al

Thanks for kind words.

I'm still waiting for a couple of minor parts, then looking forward to getting the RGU-2 Oxygen Module into the water for first manned trials. Also beginning to be enthusiastic , looking forward to integrating the RGU-2 Module into the much more capable D105 mixed-gas and chassis sub-systems.

I really liked your clean and innovative, minimalist approach to your little rig, especially the O2 injection up near the DSV. I assume that the scruber is axial.
What is the scrubber charge weight ??....and duration you've gotten so far.??

I also liked AlMirs' DSV. Would you please share the source ??

Sorry missed to reply to your question.

The small green scrubber is from a Fenzy 66H. I have described it in other threads here on Rebreather World before. Its axial, I removed some insulating foam placed against the wall from the inside. I did this to increase sorb capacity and to reduce the risk of bypassing in the possible thin foam/wall gap. The modified scrubber holds around 0.8 kg, give or take some depending on what type of sorb you use.

If I recall correctly (don't have my notes here) the longest I have use a load was for about 100 minutes farting around in the shallows, max 7-8m over three dives with _low_ average excertion. And in warm water (~20-23 Celsius).

But I did notice that only a few minutes into a fresh fill the scrubber got overloaded in a few minutes time when I did some speed tests finning at max speed. Had to go semi closed and rest for a minute to recover the loop. Feeling by hand during this test the hot front of the scrubber still remained only on the inlet side. So it seems there was some narrow spiking break through since I could not feel the hot front moving.

17th September 2007, 21:34	#31 (permalink)
alfa011 New Member Current Rebreather/s: Other CCR Home Build Other Rebreather/s: Other CCR Home Build Join Date: Apr 2007 Location: Puerto Rico Posts: 31	Re: From RG-UF/M....To RGU-2....And Beyond Hi Micha! I am interested in knowing what you are using as a DSV in your pendulum rebreathers. Could you share your source? Thanks. AlMir. Quote: (Originally Posted by oxydiver) Hallo all, this is also my opinion. Here is a small compressed vid with my pendulum as MCCR dive in Spain. Picasa-Webalben - mike - Costa Brava. At present i build a hard cover, so that the parts are better fastened and to make the unit more streamlined. The unit has than two options, pendulum hose and double hose. @dandunfee very good idea and work, i think i make this also, but the time.... Micha
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18th September 2007, 07:29	#32 (permalink)
oxydiver New Member Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Jun 2006 Location: Germany Posts: 10	Re: From RG-UF/M....To RGU-2....And Beyond ... using as a DSV in your pendulum rebreathers. Could you share your source? Hallo, I use a ball valve to solder (Lötkugelhahn). Here is a picture: profimaus.de - Lötkugelhahn 18 mm · Turbulatoren · Spar Turbulator · Strahlregler · Luftsprudler · Spar-Strahlregler · Badheizkörper · Urinal-Befestigung · WC-Befestigung · WC Papierhalter · profimaus.de · Lötkugelhahn 18 mm , but my toggle is smaller. Search in your next plumber shop. The valve is from chromium-plated brass and really waterproof. Micha
(Offline)

18th September 2007, 17:12	#33 (permalink)
jaap Normal people worry me Current Rebreather/s: Classic Kiss Other CCR RB80 / Clone Ray Other SCR Home Build Other Rebreather/s: Other CCR RB80 / Clone Ray Other SCR Home Build Join Date: Jun 2005 Location: Stockholm Sweden Posts: 451	Re: From RG-UF/M....To RGU-2....And Beyond About simple DSV's for pendulum-Rebreather. Here are a few pics of a very simple thing I have used (large plastic water tap on a BCD-inflator for gas addition): FOTO FOTO FOTO Dan, thats the nicest RGU-"based" Rebreather i have ever seen! __________________ My initials: JAAP
(Online)

18th September 2007, 22:23	#35 (permalink)
alfa011 New Member Current Rebreather/s: Other CCR Home Build Other Rebreather/s: Other CCR Home Build Join Date: Apr 2007 Location: Puerto Rico Posts: 31	Pendulum rebreathers enthusiasts Great pictures Jaap. Very interesting concept. Almir. Quote: (Originally Posted by jaap) About simple DSV's for pendulum-Rebreather. Here are a few pics of a very simple thing I have used (large plastic water tap on a BCD-inflator for gas addition): FOTO FOTO FOTO Dan, thats the nicest RGU-"based" Rebreather i have ever seen!
(Offline)

18th September 2007, 23:16	#36 (permalink)
DanDunfee Custom Title Allowed! Current Rebreather/s: Other CCR Other SCR Home Build Other Rebreather/s: Not Bought Yet Other CCR Other SCR Home Build Join Date: Sep 2005 Location: Virginia, USA Posts: 204	Re: From RG-UF/M....To RGU-2....And Beyond Quote: (Originally Posted by jaap) Dan, thats the nicest RGU-"based" Rebreather i have ever seen! ============= Jaap....et al Thanks for kind words. I'm still waiting for a couple of minor parts, then looking forward to getting the RGU-2 Oxygen Module into the water for first manned trials. Also beginning to be enthusiastic , looking forward to integrating the RGU-2 Module into the much more capable D105 mixed-gas and chassis sub-systems. I really liked your clean and innovative, minimalist approach to your little rig, especially the O2 injection up near the DSV. I assume that the scruber is axial. What is the scrubber charge weight ??....and duration you've gotten so far.?? I also liked AlMirs' DSV. Would you please share the source ?? __________________ There are 'Bold' divers and old divers, but NO old, ' Bold ' divers Last edited by DanDunfee : 18th September 2007 at 23:21.
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19th September 2007, 00:37	#37 (permalink)
alfa011 New Member Current Rebreather/s: Other CCR Home Build Other Rebreather/s: Other CCR Home Build Join Date: Apr 2007 Location: Puerto Rico Posts: 31	Re: From RG-UF/M....To RGU-2....And Beyond Quote: (Originally Posted by DanDunfee) ============= I also liked AlMirs' DSV. Would you please share the source ?? Sure thing Dan. It is known as a Flow Rite polyethylene (model 68-75), drum faucet (3/4" size). Drum Faucets Morse Drum Faucets, Wrenches, Pumps and Drum Heaters Flow Rite 3/4" Faucet Volume Discount Buy Two -----3.99 each Buy Six -----2.99 Each Buy Twelve---1.99 Each - FAUCETS If you have any issue getting them, just let me know.. I have some around. Hope I have been of help. Good luck. AlMir Puerto Rico
(Offline)

21st September 2007, 07:25	#38 (permalink)
oxydiver New Member Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Jun 2006 Location: Germany Posts: 10	Re: From RG-UF/M....To RGU-2....And Beyond Quote: (Originally Posted by alfa011) Micha: Thanks for the reference.. thank you.. But because they are made of metal (brass) do you feel they are a little " heavy " on weight?? What is your experience with them? By the way, I am enclosing a photo of what I am presently using. AlMir Puerto Rico Hallo AlMir, this version i use also 2003/4 50 € Rebreather (O2CCR) - Modell "MSP 2003":, but i searched for an heavy duty version. The weight is not to be feel underwater. It works very well since 2 years. And it looks better:-) Micha
(Offline)

7th October 2007, 20:31	#39 (permalink)
*caveseeker7* Who loves ya, baby Current Rebreather/s: Sport Kiss Other Rebreather/s: Prism Topaz Join Date: Jan 2005 Location: Too far from Neverland Posts: 5,451	Re: From RG-UF/M....To RGU-2....And Beyond Dan, terrific job with the RGU-2. The simplicity of it is beautiful. I really like the way you placed the scrubber inside the breathing bag, great improvements to all aspects of the unit. I'm looking forward to more updates. Just one quesstion for now, either Dan or Ken: "the original RGU, …including its very innovative... but quirky,.. Integrated pressure and constant mass flow (CMF) regulator" Of all the individual components of the RGU, that seems to be the keeper. Just how "quirky" is it and how is it "quirky"? Osiris, there's a Hans Hass Video Collection available from Polarfilm. Also a double DVD (link at bottom of page above) with 4 old movies: „Pirsch unter Wasser“ von 1942 (Deutsch) „Menschen unter Haien“ von 1947 (Deutsch) „Abenteuer im Roten Meer“ von 1951 (Deutsch + Englisch) „Unternehmen Xarifa“ von 1954 (Deutsch + Englisch) http://www.polarfilm.de/php/movies/1..._Hans_Hass.wmv __________________ Cheers Stefan "Political Correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.!"
(Offline)

7th October 2007, 21:31	#40 (permalink)
jaap Normal people worry me Current Rebreather/s: Classic Kiss Other CCR RB80 / Clone Ray Other SCR Home Build Other Rebreather/s: Other CCR RB80 / Clone Ray Other SCR Home Build Join Date: Jun 2005 Location: Stockholm Sweden Posts: 451	Re: From RG-UF/M....To RGU-2....And Beyond Quote: (Originally Posted by DanDunfee) ============= Jaap....et al Thanks for kind words. I'm still waiting for a couple of minor parts, then looking forward to getting the RGU-2 Oxygen Module into the water for first manned trials. Also beginning to be enthusiastic , looking forward to integrating the RGU-2 Module into the much more capable D105 mixed-gas and chassis sub-systems. I really liked your clean and innovative, minimalist approach to your little rig, especially the O2 injection up near the DSV. I assume that the scruber is axial. What is the scrubber charge weight ??....and duration you've gotten so far.?? I also liked AlMirs' DSV. Would you please share the source ?? Sorry missed to reply to your question. The small green scrubber is from a Fenzy 66H. I have described it in other threads here on Rebreather World before. Its axial, I removed some insulating foam placed against the wall from the inside. I did this to increase sorb capacity and to reduce the risk of bypassing in the possible thin foam/wall gap. The modified scrubber holds around 0.8 kg, give or take some depending on what type of sorb you use. If I recall correctly (don't have my notes here) the longest I have use a load was for about 100 minutes farting around in the shallows, max 7-8m over three dives with _low_ average excertion. And in warm water (~20-23 Celsius). But I did notice that only a few minutes into a fresh fill the scrubber got overloaded in a few minutes time when I did some speed tests finning at max speed. Had to go semi closed and rest for a minute to recover the loop. Feeling by hand during this test the hot front of the scrubber still remained only on the inlet side. So it seems there was some narrow spiking break through since I could not feel the hot front moving. __________________ My initials: JAAP
(Online)

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