K1 project page INCLUDING publically-available files

Genesis · 7th October 2006, 22:01

Its 6" DR11 PE3408 pipe. About $7/foot from a place out in Pennsylvania (and they WILL sell cut pieces - they had no problem shipping me a 6' piece, which can go UPS.) (HDPE pipe distributor and HDPE pipe fabrication specialists.)

5.349" nominal ID, 6.625" nominal OD. ~.6" wall thickness. Damn near indestructable, yet it takes a tap reasonably well (for the feed of exhale gas); the thinner wall stuff would likely have a problem with seal integrity on that.

Top and bottom lid pieces (two) are made from Delrin; the bottom scrim is also Delrin, all for strength reasons (the bottom scrim is bolted to the bottom of the can). The top scrim is made from HDPE. Sheet materials from McMaster.

A "full fill" is calculated out to be right around 5 to 5-1/2 lbs of Spherasorb. The pin points are being set for a "full fill" (about 1" below the bottom of the sensor carriage when completely filled up) and a "half fill", roughly 3lbs, for times when I'm going to go do a couple of recreational, no-deco dives in the <130' range - which I do a lot around here.

shell-back · 7th October 2006, 22:54

you will be bringing this to DEMA right?

Genesis · 7th October 2006, 23:44

Absolutely, if we can get there. Even if I decide against registering for the show (and I may, as I'll have my kid with me, and she can't get in - I could qualify as I run a forum for diving, which is technically "media") I'll do my darndest to make the party.

I wonder how they'd feel about me coming into the party building with it on my back and breathing off it?

Genesis · 8th October 2006, 06:08

Late update.... got things assembled enough to actually put it on (as a pack, with plate/wing) and step on a scale.

Looks like 45lbs empty (no gas or sorb) w/o battery and handset. My guess is that it will come in somewhere around 60lbs "ready to dive", including the wing and plate, with AL19s. Not bad, and not THAT far off a full singles config (AL80 is 32lbs empty, figure a SS plate and STA (8lbs) to counteract the buoyancy of the tank empty, then your wing (~3lbs?) and you're at 42. It'd be lighter with 13s, of course.

Since the lightest set of doubles I own is 70lbs dry (double 72s) this looks to be a real treat!

Genesis · 11th October 2006, 21:02

Here's a tease during the buildup today on my kitchen island..... not quite there yet, still have some cabling and hose routing to do, along with a two-port manifold for diluent to feed the BOV and wing inflator....

RAL · 11th October 2006, 23:20

Quote: (Originally Posted by Genesis)

Here's a tease during the buildup today on my kitchen island..... not quite there yet, still have some cabling and hose routing to do, along with a two-port manifold for diluent to feed the BOV and wing inflator....

WOW that is a pretty nice Meg clone Karl! Easy.....just kidding. When is the maiden voyage?

RAL

Genesis · 12th October 2006, 02:00

I'm guessing within 2 weeks.

Right now I'm doing test "casts" of the potting system I have made up for the amplifier board. That's the only remaining piece - I've got all the fittings and such.

I've also got to do static tests (as an O2 rebreather) on the scrubber, etc - that'll get done here shortly, likely within the week. Quick "no sorb included" breathing (not too much now, since that's literally the "bag over head" situation!) seem to indicate that WOB is extremely low - certainly not anything to worry about. The unit also passes positive and negative tests (when I put the clamps on the hoses!) and actually will pass both with two of the four latches off (as long as they're across from each other) on either the lid or bottom of the can. The latter was a pleasant surprise.

Another amusing reality - even including all the equipment and tooling I've bought, I still haven't spent as much as any of the commercial eCCRs cost, and of course I still own all the machines and they're quite useful for other things!

For those who say "it can't be done at anything reasonably approaching commercial quality and diveability", I think its about to be demonstrated that this is complete and utter BS.

I may still come up with something that's a show-stopper or something that forces a major redesign effort (which of course will make things even more expensive), but it is looking increasingly unlikely.

Mdemon · 12th October 2006, 07:39

Quote: (Originally Posted by Genesis)

Another amusing reality - even including all the equipment and tooling I've bought, I still haven't spent as much as any of the commercial eCCRs cost, and of course I still own all the machines and they're quite useful for other things!

For those who say "it can't be done at anything reasonably approaching commercial quality and diveability", I think its about to be demonstrated that this is complete and utter BS.

That's tempting fate!

Nice.

(Apologies if I have this wrong but IIRC you haven't dived an Rebreather before?)

BTW, will you be getting hold of manuals for other units to give yourself an idea of likely failures and the remedies? Because you've also saved yourself the cost of a unit-specific MOD 1 course!

Might be good to run through the drills - you'll have it doubley-tough, new unit and new skills to learn. Would be useful if your buddy was Rebreather-aware too. Just a thought.

Genesis · 12th October 2006, 14:07

Yep - already have several manuals and have studied them.... and I have a pool, and am not going to go splash this thing and head for a 300' deep wreck either.

Its my intention to enjoy this thing, not end up as one of the "discussion points" in the "accidents and incidents" forum

SINUS · 12th October 2006, 14:36

Quote: (Originally Posted by Genesis)

Yep - already have several manuals and have studied them.... and I have a pool, and am not going to go splash this thing and head for a 300' deep wreck either.

Its my intention to enjoy this thing, not end up as one of the "discussion points" in the "accidents and incidents" forum

That is a Beautiful Homebrewed Rebreather rig Karl! Now I am a believer

Looks like 'Ron' can no longer bashs you from now on

K1 has materialized !

There are the G1 and K1 - What is next?? Perhaps X1 ?

Cheers

Wei Lan

7th October 2006, 22:01	#41 (permalink)
Genesis Bubbless Box of Death Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Oct 2005 Location: Sunny Florida Posts: 1,453	Re: K1 project page INCLUDING publically-available files Its 6" DR11 PE3408 pipe. About $7/foot from a place out in Pennsylvania (and they WILL sell cut pieces - they had no problem shipping me a 6' piece, which can go UPS.) (HDPE pipe distributor and HDPE pipe fabrication specialists.) 5.349" nominal ID, 6.625" nominal OD. ~.6" wall thickness. Damn near indestructable, yet it takes a tap reasonably well (for the feed of exhale gas); the thinner wall stuff would likely have a problem with seal integrity on that. Top and bottom lid pieces (two) are made from Delrin; the bottom scrim is also Delrin, all for strength reasons (the bottom scrim is bolted to the bottom of the can). The top scrim is made from HDPE. Sheet materials from McMaster. A "full fill" is calculated out to be right around 5 to 5-1/2 lbs of Spherasorb. The pin points are being set for a "full fill" (about 1" below the bottom of the sensor carriage when completely filled up) and a "half fill", roughly 3lbs, for times when I'm going to go do a couple of recreational, no-deco dives in the <130' range - which I do a lot around here. __________________ "A venturesome minority will always be eager to get off on their own, and no obstacles should be placed in their path; let them take risks for Godsake, let them get lost, sunburnt, stranded, drowned, eaten by bears, buried alive under avalanches - that is the right and privilege of any free American." http://www.denninger.net http://www.diversunion.org/liability.htm - Fix the Diving Cert racket Last edited by Genesis : 7th October 2006 at 22:15.
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7th October 2006, 22:54	#42 (permalink)
shell-back I do all my own stunts Current Rebreather/s: Other CCR Dolphin Ray Azimuth Other SCR Home Build Other Rebreather/s: Other CCR Dolphin Ray Azimuth Other SCR Home Build Join Date: Jul 2005 Location: middle of US Posts: 475	Re: K1 project page INCLUDING publically-available files you will be bringing this to DEMA right? __________________ The greatest obstacle to discovery is not ignorance -- it is the illusion of knowledge. ----Daniel Boorstin Billy Beal SDITDI IT #3507 RBW FIGJAM commitee member
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7th October 2006, 23:44	#43 (permalink)
Genesis Bubbless Box of Death Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Oct 2005 Location: Sunny Florida Posts: 1,453	Re: K1 project page INCLUDING publically-available files Absolutely, if we can get there. Even if I decide against registering for the show (and I may, as I'll have my kid with me, and she can't get in - I could qualify as I run a forum for diving, which is technically "media") I'll do my darndest to make the party. I wonder how they'd feel about me coming into the party building with it on my back and breathing off it? __________________ "A venturesome minority will always be eager to get off on their own, and no obstacles should be placed in their path; let them take risks for Godsake, let them get lost, sunburnt, stranded, drowned, eaten by bears, buried alive under avalanches - that is the right and privilege of any free American." http://www.denninger.net http://www.diversunion.org/liability.htm - Fix the Diving Cert racket
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8th October 2006, 06:08	#44 (permalink)
Genesis Bubbless Box of Death Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Oct 2005 Location: Sunny Florida Posts: 1,453	Re: K1 project page INCLUDING publically-available files Late update.... got things assembled enough to actually put it on (as a pack, with plate/wing) and step on a scale. Looks like 45lbs empty (no gas or sorb) w/o battery and handset. My guess is that it will come in somewhere around 60lbs "ready to dive", including the wing and plate, with AL19s. Not bad, and not THAT far off a full singles config (AL80 is 32lbs empty, figure a SS plate and STA (8lbs) to counteract the buoyancy of the tank empty, then your wing (~3lbs?) and you're at 42. It'd be lighter with 13s, of course. Since the lightest set of doubles I own is 70lbs dry (double 72s) this looks to be a real treat! __________________ "A venturesome minority will always be eager to get off on their own, and no obstacles should be placed in their path; let them take risks for Godsake, let them get lost, sunburnt, stranded, drowned, eaten by bears, buried alive under avalanches - that is the right and privilege of any free American." http://www.denninger.net http://www.diversunion.org/liability.htm - Fix the Diving Cert racket
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11th October 2006, 21:02	#45 (permalink)
Genesis Bubbless Box of Death Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Oct 2005 Location: Sunny Florida Posts: 1,453	Re: K1 project page INCLUDING publically-available files Here's a tease during the buildup today on my kitchen island..... not quite there yet, still have some cabling and hose routing to do, along with a two-port manifold for diluent to feed the BOV and wing inflator.... __________________ "A venturesome minority will always be eager to get off on their own, and no obstacles should be placed in their path; let them take risks for Godsake, let them get lost, sunburnt, stranded, drowned, eaten by bears, buried alive under avalanches - that is the right and privilege of any free American." http://www.denninger.net http://www.diversunion.org/liability.htm - Fix the Diving Cert racket
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11th October 2006, 23:20	#46 (permalink)
RAL Longbottom Time Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Jan 2006 Location: North Florida Posts: 391	Re: K1 project page INCLUDING publically-available files Quote: (Originally Posted by Genesis) Here's a tease during the buildup today on my kitchen island..... not quite there yet, still have some cabling and hose routing to do, along with a two-port manifold for diluent to feed the BOV and wing inflator.... WOW that is a pretty nice Meg clone Karl! Easy.....just kidding. When is the maiden voyage? RAL __________________ The sea does not care about you. Last edited by sadave : 12th October 2006 at 07:44. Reason: Removed images from quote
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12th October 2006, 02:00	#47 (permalink)
Genesis Bubbless Box of Death Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Oct 2005 Location: Sunny Florida Posts: 1,453	Re: K1 project page INCLUDING publically-available files I'm guessing within 2 weeks. Right now I'm doing test "casts" of the potting system I have made up for the amplifier board. That's the only remaining piece - I've got all the fittings and such. I've also got to do static tests (as an O2 rebreather) on the scrubber, etc - that'll get done here shortly, likely within the week. Quick "no sorb included" breathing (not too much now, since that's literally the "bag over head" situation!) seem to indicate that WOB is extremely low - certainly not anything to worry about. The unit also passes positive and negative tests (when I put the clamps on the hoses!) and actually will pass both with two of the four latches off (as long as they're across from each other) on either the lid or bottom of the can. The latter was a pleasant surprise. Another amusing reality - even including all the equipment and tooling I've bought, I still haven't spent as much as any of the commercial eCCRs cost, and of course I still own all the machines and they're quite useful for other things! For those who say "it can't be done at anything reasonably approaching commercial quality and diveability", I think its about to be demonstrated that this is complete and utter BS. I may still come up with something that's a show-stopper or something that forces a major redesign effort (which of course will make things even more expensive), but it is looking increasingly unlikely. __________________ "A venturesome minority will always be eager to get off on their own, and no obstacles should be placed in their path; let them take risks for Godsake, let them get lost, sunburnt, stranded, drowned, eaten by bears, buried alive under avalanches - that is the right and privilege of any free American." http://www.denninger.net http://www.diversunion.org/liability.htm - Fix the Diving Cert racket
(Offline)

12th October 2006, 07:39	#48 (permalink)
Mdemon SiegeEngine II Current Rebreather/s: Inspiration Classic Home Build Other Rebreather/s: Inspiration Classic Home Build Join Date: Feb 2007 Location: SWUK Posts: 1,946	Re: K1 project page INCLUDING publically-available files Quote: (Originally Posted by Genesis) Another amusing reality - even including all the equipment and tooling I've bought, I still haven't spent as much as any of the commercial eCCRs cost, and of course I still own all the machines and they're quite useful for other things! For those who say "it can't be done at anything reasonably approaching commercial quality and diveability", I think its about to be demonstrated that this is complete and utter BS. That's tempting fate! Nice. (Apologies if I have this wrong but IIRC you haven't dived an Rebreather before?) BTW, will you be getting hold of manuals for other units to give yourself an idea of likely failures and the remedies? Because you've also saved yourself the cost of a unit-specific MOD 1 course! Might be good to run through the drills - you'll have it doubley-tough, new unit and new skills to learn. Would be useful if your buddy was Rebreather-aware too. Just a thought. __________________ www.southwestmafia.com "small minds talk about people, Average Minds Talk About Events, GREAT MINDS TALK ABOUT IDEAS!" The WRONG Attitude will get you killed. "Once the agenda-monkeys and perfect-worlders have moved on, perhaps we can do some diving?"
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12th October 2006, 14:07	#49 (permalink)
Genesis Bubbless Box of Death Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Oct 2005 Location: Sunny Florida Posts: 1,453	Re: K1 project page INCLUDING publically-available files Yep - already have several manuals and have studied them.... and I have a pool, and am not going to go splash this thing and head for a 300' deep wreck either. Its my intention to enjoy this thing, not end up as one of the "discussion points" in the "accidents and incidents" forum __________________ "A venturesome minority will always be eager to get off on their own, and no obstacles should be placed in their path; let them take risks for Godsake, let them get lost, sunburnt, stranded, drowned, eaten by bears, buried alive under avalanches - that is the right and privilege of any free American." http://www.denninger.net http://www.diversunion.org/liability.htm - Fix the Diving Cert racket
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12th October 2006, 14:36	#50 (permalink)
SINUS Rebreather Aficionado Current Rebreather/s: Other SCR Other Rebreather/s: Other SCR Join Date: Apr 2005 Location: 137km from equator Posts: 196	Re: K1 project page INCLUDING publically-available files Quote: (Originally Posted by Genesis) Yep - already have several manuals and have studied them.... and I have a pool, and am not going to go splash this thing and head for a 300' deep wreck either. Its my intention to enjoy this thing, not end up as one of the "discussion points" in the "accidents and incidents" forum That is a Beautiful Homebrewed Rebreather rig Karl! Now I am a believer Looks like 'Ron' can no longer bashs you from now on K1 has materialized ! There are the G1 and K1 - What is next?? Perhaps X1 ? Cheers Wei Lan __________________ "Silence Is Always Beautiful"
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