Any news?

Faceless · 17th April 2007, 13:45

AFAIK DeepLife team has buit fault tree for various configurations of the unit,
for example when it uses solenoid. Original design of the O.R. rebreather uses variable orifice.
This is applicable for instance when some manufacturer wants to adapt PPO2 controller only, while other mechanical parts of the particular unit are the same, i.e. solenoid, scrubber etc.

AD_ward9 · 18th April 2007, 05:02

Quote: (Originally Posted by Ben Field)

Hi Alex and Co,

With regards to the aforementioned Volume 6...

I've only had a few minutes to read some of the data but I must join the chorus of "its very complete and impressive stuff" however a couple of things stuck out, perhaps I missed something but just in case....

The Purpose and Scope gives the impression (to me) that this is the analysis of your proposal (Deeplife Ltd Open Revolution Submission) and even goes as far as saying that all references refer to that submission.

(There is also a couple of typos but my spelling is terrible and I can't load the Rebreather World spellchecker at work so won't point my finger there!

)

Later on in the document there are numerous references to a specific existing rebreather by way of failure type (battery bounce) components used (O2 and Dil manual injectors) etc that are clearly not part of the Open Revolution Submission, I do not understand where they fit in the analysis?

The next thing I spotted is that moany of the items are contradictary. For example- O2 Solenoid Stuck closed, the recovery suggested in flying PPO2 manually via manual injection (which of course is somewhat unit specific and doesn't afflict all rebreathers anyway)
On the very next page it is suggested that the manual injector is a failure point that should be eliminated!!

Perhaps I have missunderstood the purpose of this document, its seems to me a list of failures possible on the APD Inspiration, not an analysis of the Open Revolution submission (in which I imagine these issues are resolved)

BEN

The Vol 6 is a compilation of all known failure modes for rebreathers, against which the O.R. design is checked.

The objective in Vol 6 and 7 was to embed all the knowledge of what fails into a document and a model to create a complete filter against which the design can be checked.

Many are eliminated by design, such as battery bounce etc. The objective should be to eliminate all risks by design, but that is not possible in many cases.

Pls do PM me with Typos: the document has been checked several times, but it is a live document and some of the authors also do not have English as their first language.

Cheers,

Alex

AD_ward9 · 18th April 2007, 05:06

Quote: (Originally Posted by jasonvds)

This is an excellent resource for all. Jason

I stress it is not complete: there are more failure modes out there. The objective is simply to track possible sources of failure and put them into the formal model.

We should co-operate as an industry in getting a complete set of failure modes. This should not be a one-company affair. Safety is a joint responsibility in the industry and we have to be better at sharing information.

If you PM me with any extra modes you are aware of or post them here, we credit you as a contributor and of course update the document with that input. The goal is not impressing anyone; it is to avoid killing anyone. I would hope that eventually customers do look for public safety documentation from rebreather manufacturers. A simple way to use it, is to donate your input

and it will then also have your credits added to it.

If we have a common formal model and common database of top level rebreather failure modes, it reduces the work or companies to get 61508 approvals for rebreather related products.

Alex

2stoned · 11th May 2007, 17:31

Here we go again...

Realizing that things must be hectic and not all can be revealed at this time, but could we please have some new pics or fresh input on the various versions of the OpenRev projects.
It is clear that commercial interests will limit what info can be presented, but the pics we have seen are somewhat early-stage. Those in the documents available from Deep Life are very nice, but more would be really nice.

I feel like being hungry in a cookie store and not being allowed to taste.
Even the sweet smell of those unattainable cookies are fainting from memory.

Help me reignite my desire!

I need my fix!

Pretty please, with sugar on top!

AD_ward9 · 12th May 2007, 08:36

Quote: (Originally Posted by 2stoned)

Here we go again...

Realizing that things must be hectic and not all can be revealed at this time, but could we please have some new pics or fresh input on the various versions of the OpenRev projects.
It is clear that commercial interests will limit what info can be presented, but the pics we have seen are somewhat early-stage. Those in the documents available from Deep Life are very nice, but more would be really nice.

I feel like being hungry in a cookie store and not being allowed to taste.
Even the sweet smell of those unattainable cookies are fainting from memory.

Help me reignite my desire!

I need my fix!

Pretty please, with sugar on top!

We will post the full compliance information shortly.

Alex

MichaelS. · 11th June 2007, 16:13

Time for our monthly feeding. Please!

AD_ward9 · 24th June 2007, 19:56

Quote: (Originally Posted by MichaelS.)

Time for our monthly feeding. Please!

We are just really busy with certification compliance work, and implementing various ergonomic improvements from the test dives. The first detailed reports from the compliance work will be published in a few weeks.

Meanwhile we are receiving parts now in Kynar and are very happy we chose this material (for its physical properties and freedom from off-gasing and breakdown issues). You can run over the rebreather with a truck on concrete. Dropping it from a building, it just bounces (writes off the sensors though!). It is nice and flexible, at the same time, extremely tough. Hitting parts with a lump hammer has not broken them! Try that with any metal part.

Alex

AD_ward9 · 17th July 2007, 12:10

Not forgotten you are waiting, just a log jam of documents right now. To many heavy documents going through one review team.

Alex

MichaelS. · 18th July 2007, 01:51

Not to worry I have been waiting patiently.

**DeepBlueInnovation** · 18th July 2007, 05:03

Any update on those photos while we are waiting patiently

17th April 2007, 13:45	#41 (permalink)
Faceless New Member Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: May 2006 Location: France, Montpellier Posts: 88	Re: Any news? AFAIK DeepLife team has buit fault tree for various configurations of the unit, for example when it uses solenoid. Original design of the O.R. rebreather uses variable orifice. This is applicable for instance when some manufacturer wants to adapt PPO2 controller only, while other mechanical parts of the particular unit are the same, i.e. solenoid, scrubber etc. __________________ Peoples risk perception is almost always focused on the most dramatic rather than the most probable. (c) Gordon Smith
(Offline)

18th April 2007, 05:02	#42 (permalink)
AD_ward9 So much more to learn Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Jun 2005 Location: Scotland Posts: 1,602	Re: Any news? Quote: (Originally Posted by Ben Field) Hi Alex and Co, With regards to the aforementioned Volume 6... I've only had a few minutes to read some of the data but I must join the chorus of "its very complete and impressive stuff" however a couple of things stuck out, perhaps I missed something but just in case.... The Purpose and Scope gives the impression (to me) that this is the analysis of your proposal (Deeplife Ltd Open Revolution Submission) and even goes as far as saying that all references refer to that submission. (There is also a couple of typos but my spelling is terrible and I can't load the Rebreather World spellchecker at work so won't point my finger there! ) Later on in the document there are numerous references to a specific existing rebreather by way of failure type (battery bounce) components used (O2 and Dil manual injectors) etc that are clearly not part of the Open Revolution Submission, I do not understand where they fit in the analysis? The next thing I spotted is that moany of the items are contradictary. For example- O2 Solenoid Stuck closed, the recovery suggested in flying PPO2 manually via manual injection (which of course is somewhat unit specific and doesn't afflict all rebreathers anyway) On the very next page it is suggested that the manual injector is a failure point that should be eliminated!! Perhaps I have missunderstood the purpose of this document, its seems to me a list of failures possible on the APD Inspiration, not an analysis of the Open Revolution submission (in which I imagine these issues are resolved) BEN The Vol 6 is a compilation of all known failure modes for rebreathers, against which the O.R. design is checked. The objective in Vol 6 and 7 was to embed all the knowledge of what fails into a document and a model to create a complete filter against which the design can be checked. Many are eliminated by design, such as battery bounce etc. The objective should be to eliminate all risks by design, but that is not possible in many cases. Pls do PM me with Typos: the document has been checked several times, but it is a live document and some of the authors also do not have English as their first language. Cheers, Alex
(Offline)

18th April 2007, 05:06	#43 (permalink)
AD_ward9 So much more to learn Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Jun 2005 Location: Scotland Posts: 1,602	Re: Any news? Quote: (Originally Posted by jasonvds) This is an excellent resource for all. Jason I stress it is not complete: there are more failure modes out there. The objective is simply to track possible sources of failure and put them into the formal model. We should co-operate as an industry in getting a complete set of failure modes. This should not be a one-company affair. Safety is a joint responsibility in the industry and we have to be better at sharing information. If you PM me with any extra modes you are aware of or post them here, we credit you as a contributor and of course update the document with that input. The goal is not impressing anyone; it is to avoid killing anyone. I would hope that eventually customers do look for public safety documentation from rebreather manufacturers. A simple way to use it, is to donate your input and it will then also have your credits added to it. If we have a common formal model and common database of top level rebreather failure modes, it reduces the work or companies to get 61508 approvals for rebreather related products. Alex Last edited by AD_ward9 : 18th April 2007 at 08:14.
(Offline)

11th May 2007, 17:31	#44 (permalink)
2stoned Such is my point of view Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Oct 2005 Location: Denmark Posts: 77	Re: Any news? Here we go again... Realizing that things must be hectic and not all can be revealed at this time, but could we please have some new pics or fresh input on the various versions of the OpenRev projects. It is clear that commercial interests will limit what info can be presented, but the pics we have seen are somewhat early-stage. Those in the documents available from Deep Life are very nice, but more would be really nice. I feel like being hungry in a cookie store and not being allowed to taste. Even the sweet smell of those unattainable cookies are fainting from memory. Help me reignite my desire! I need my fix! Pretty please, with sugar on top! __________________ Sten. The only man that always had all his work done by Friday, was Robinson Crusoe! www.rebreatherworld.com - Is going down in silence - Staying longer in stealth and style - Diving first class, all the way!
(Online)

12th May 2007, 08:36	#45 (permalink)
AD_ward9 So much more to learn Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Jun 2005 Location: Scotland Posts: 1,602	Re: Any news? Quote: (Originally Posted by 2stoned) Here we go again... Realizing that things must be hectic and not all can be revealed at this time, but could we please have some new pics or fresh input on the various versions of the OpenRev projects. It is clear that commercial interests will limit what info can be presented, but the pics we have seen are somewhat early-stage. Those in the documents available from Deep Life are very nice, but more would be really nice. I feel like being hungry in a cookie store and not being allowed to taste. Even the sweet smell of those unattainable cookies are fainting from memory. Help me reignite my desire! I need my fix! Pretty please, with sugar on top! We will post the full compliance information shortly. Alex
(Offline)

11th June 2007, 16:13	#46 (permalink)
MichaelS. New Member Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: May 2005 Location: USA, Alabama Posts: 34	Re: Any news? Time for our monthly feeding. Please!
(Offline)

24th June 2007, 19:56	#47 (permalink)
AD_ward9 So much more to learn Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Jun 2005 Location: Scotland Posts: 1,602	Re: Any news? Quote: (Originally Posted by MichaelS.) Time for our monthly feeding. Please! We are just really busy with certification compliance work, and implementing various ergonomic improvements from the test dives. The first detailed reports from the compliance work will be published in a few weeks. Meanwhile we are receiving parts now in Kynar and are very happy we chose this material (for its physical properties and freedom from off-gasing and breakdown issues). You can run over the rebreather with a truck on concrete. Dropping it from a building, it just bounces (writes off the sensors though!). It is nice and flexible, at the same time, extremely tough. Hitting parts with a lump hammer has not broken them! Try that with any metal part. Alex
(Offline)

17th July 2007, 12:10	#48 (permalink)
AD_ward9 So much more to learn Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Jun 2005 Location: Scotland Posts: 1,602	Re: Any news? Not forgotten you are waiting, just a log jam of documents right now. To many heavy documents going through one review team. Alex
(Offline)

18th July 2007, 01:51	#49 (permalink)
MichaelS. New Member Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: May 2005 Location: USA, Alabama Posts: 34	Re: Any news? Not to worry I have been waiting patiently.
(Offline)

18th July 2007, 05:03	#50 (permalink)
DeepBlueInnovation Prism #007 Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: Sep 2005 Location: Perth, Western Australia Posts: 312	Re: Any news? Any update on those photos while we are waiting patiently
(Offline)

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