hemispherical scrubber

Auto Matic · 21st June 2007, 06:39

Take $5 of parts, combine with kitchen scissors, sharpie marker, soldering pen and hot glue gun and bingo! Hemispherical micro scrubber.
The plastic lid was given “tooth” with the soldering pen before laying down a ring of hot glue. This was then stitched through to the other side with the same tool. Then additional hot glue applied to both sides and forced through the screen. The hot glues flexibility matches well with the lid. It is a solid assembly. I threw it. Nothing budged. I will try a filled with something water soluble drop test soon. It is airtight. I haven’t got to the mounting of the counter lung or o2 port, yet.
I was planning on packing it with 8-12 to the point of minor distension, thereby assuring it stays packed, possibly using a wad of something under the screw lid. How does the board feel about me finding the weight of the sorb, guessing the duration and then doing a supervised couch dive till headache/symptoms/passing out?
This alpha version is a couch testing rig for fun. I would like to rig a spit trap and devise a tighter fitting scrubber housing. I like having no moving parts and very little dead space. I imagine a harness for an organic respirator or cartridge gas mask would work well.
Has anyone tried a hemispherical or spherical scrubber? Axial -> Radial -> Hemispherical/spherical? Retaining the heat of reaction, w.o.b., sheer niftiness…
So what do you think?

**Dave1w** · 21st June 2007, 08:42

Hmm, Interesting!

Dave

Tom Rose · 21st June 2007, 17:07

Quote: (Originally Posted by Auto Matic)

Take $5 of parts, combine with kitchen scissors, sharpie marker, soldering pen and hot glue gun and bingo! Hemispherical micro scrubber.
The plastic lid was given “tooth” with the soldering pen before laying down a ring of hot glue. This was then stitched through to the other side with the same tool. Then additional hot glue applied to both sides and forced through the screen. The hot glues flexibility matches well with the lid. It is a solid assembly. I threw it. Nothing budged. I will try a filled with something water soluble drop test soon. It is airtight. I haven’t got to the mounting of the counter lung or o2 port, yet.
I was planning on packing it with 8-12 to the point of minor distension, thereby assuring it stays packed, possibly using a wad of something under the screw lid. How does the board feel about me finding the weight of the sorb, guessing the duration and then doing a supervised couch dive till headache/symptoms/passing out?

This alpha version is a couch testing rig for fun. I would like to rig a spit trap and devise a tighter fitting scrubber housing. I like having no moving parts and very little dead space. I imagine a harness for an organic respirator or cartridge gas mask would work well.
Has anyone tried a hemispherical or spherical scrubber? Axial -> Radial -> Hemispherical/spherical? Retaining the heat of reaction, w.o.b., sheer niftiness…
So what do you think?

What I think is that I hate you. I have been staring at those damned things for months trying to work it out in my head before I gave it a try. Nice job. I had already calculated the surface area and your work of breathing will be great.

Tom

paulraymaekers · 21st June 2007, 18:17

Quote: (Originally Posted by Auto Matic)

Take $5 of parts, combine with kitchen scissors, sharpie marker, soldering pen and hot glue gun and bingo! Hemispherical micro scrubber.
The plastic lid was given “tooth” with the soldering pen before laying down a ring of hot glue. This was then stitched through to the other side with the same tool. Then additional hot glue applied to both sides and forced through the screen. The hot glues flexibility matches well with the lid. It is a solid assembly. I threw it. Nothing budged. I will try a filled with something water soluble drop test soon. It is airtight. I haven’t got to the mounting of the counter lung or o2 port, yet.
I was planning on packing it with 8-12 to the point of minor distension, thereby assuring it stays packed, possibly using a wad of something under the screw lid. How does the board feel about me finding the weight of the sorb, guessing the duration and then doing a supervised couch dive till headache/symptoms/passing out?
This alpha version is a couch testing rig for fun. I would like to rig a spit trap and devise a tighter fitting scrubber housing. I like having no moving parts and very little dead space. I imagine a harness for an organic respirator or cartridge gas mask would work well.
Has anyone tried a hemispherical or spherical scrubber? Axial -> Radial -> Hemispherical/spherical? Retaining the heat of reaction, w.o.b., sheer niftiness…
So what do you think?

find a good filling method, then some spring loading to prevent channeling, and off for a testdive :-)
paul

undrh2o · 21st June 2007, 19:18

Quote: (Originally Posted by Auto Matic)

I would like to rig a spit trap and
So what do you think?

Spit trap? Stay with the theme and use a kitchen sponge - nice work - have some green!

Skipbreather · 21st June 2007, 22:55

[quote=Auto Matic;121633
So what do you think?[/quote]

Hot glue....Sorb..... exothermic reaction.......

Auto Matic · 22nd June 2007, 06:06

I will try a couple things to keep the sorb compacted. Packing it to the "tight as a tick" stage was my first guess, with wedging something under that screw on lid coming second. The plastic is flexible, as well as the colander mesh. Both will provide compacting force.
I will give it a run and see how warm it gets. To tell the truth, I didn't really think of it since the scrubber is small and the glue is only flowing at high temps. That's what this forum is for, right? Gracias carnal!. The beta rig will have the parts stitched with mono leader and sealed with rtv. Any problems with rtv? Any better sealants? I have patched intake manifolds and valve covers with rtv and it has worked, sort of.
If I get one to the diving stage will I receive my invitation to the Tom Rose Clever Monkey Award Banquet?

Mdemon · 22nd June 2007, 13:03

Fantastic! Could you make two and chest mount them?

divetheworld · 22nd June 2007, 13:38

Quote: (Originally Posted by Mdemon)

Fantastic! Could you make two and chest mount them?

You are my hero.

Auto Matic · 22nd June 2007, 17:43

For trim reasons I had to belt mount it. I heard, "Check out the unit on that mexican!" for the first time ever at the beach

21st June 2007, 08:42	#2 (permalink)
Dave1w Born Again Diver! Current Rebreather/s: Sport Kiss Dolphin Ray Home Build Other Rebreather/s: Classic Kiss Dolphin Ray Home Build Join Date: Jan 2005 Location: Singapore / UK Posts: 378	Re: hemispherical scrubber Hmm, Interesting! Dave
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21st June 2007, 17:07	#3 (permalink)
Tom Rose Still Learning Current Rebreather/s: Other CCR Home Build Other Rebreather/s: Prism Topaz Other CCR Home Build Join Date: Oct 2005 Location: USA,North Carolina Posts: 331	Re: hemispherical scrubber Quote: (Originally Posted by Auto Matic) Take $5 of parts, combine with kitchen scissors, sharpie marker, soldering pen and hot glue gun and bingo! Hemispherical micro scrubber. The plastic lid was given “tooth” with the soldering pen before laying down a ring of hot glue. This was then stitched through to the other side with the same tool. Then additional hot glue applied to both sides and forced through the screen. The hot glues flexibility matches well with the lid. It is a solid assembly. I threw it. Nothing budged. I will try a filled with something water soluble drop test soon. It is airtight. I haven’t got to the mounting of the counter lung or o2 port, yet. I was planning on packing it with 8-12 to the point of minor distension, thereby assuring it stays packed, possibly using a wad of something under the screw lid. How does the board feel about me finding the weight of the sorb, guessing the duration and then doing a supervised couch dive till headache/symptoms/passing out? This alpha version is a couch testing rig for fun. I would like to rig a spit trap and devise a tighter fitting scrubber housing. I like having no moving parts and very little dead space. I imagine a harness for an organic respirator or cartridge gas mask would work well. Has anyone tried a hemispherical or spherical scrubber? Axial -> Radial -> Hemispherical/spherical? Retaining the heat of reaction, w.o.b., sheer niftiness… So what do you think? What I think is that I hate you. I have been staring at those damned things for months trying to work it out in my head before I gave it a try. Nice job. I had already calculated the surface area and your work of breathing will be great. Tom __________________ The 50-50-90 rule: Anytime I have a 50-50 chance of getting something right, there's a 90% probability I'll get it wrong the first time. www.atlimp.com
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21st June 2007, 18:17	#4 (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: 1,638	Re: hemispherical scrubber Quote: (Originally Posted by Auto Matic) Take $5 of parts, combine with kitchen scissors, sharpie marker, soldering pen and hot glue gun and bingo! Hemispherical micro scrubber. The plastic lid was given “tooth” with the soldering pen before laying down a ring of hot glue. This was then stitched through to the other side with the same tool. Then additional hot glue applied to both sides and forced through the screen. The hot glues flexibility matches well with the lid. It is a solid assembly. I threw it. Nothing budged. I will try a filled with something water soluble drop test soon. It is airtight. I haven’t got to the mounting of the counter lung or o2 port, yet. I was planning on packing it with 8-12 to the point of minor distension, thereby assuring it stays packed, possibly using a wad of something under the screw lid. How does the board feel about me finding the weight of the sorb, guessing the duration and then doing a supervised couch dive till headache/symptoms/passing out? This alpha version is a couch testing rig for fun. I would like to rig a spit trap and devise a tighter fitting scrubber housing. I like having no moving parts and very little dead space. I imagine a harness for an organic respirator or cartridge gas mask would work well. Has anyone tried a hemispherical or spherical scrubber? Axial -> Radial -> Hemispherical/spherical? Retaining the heat of reaction, w.o.b., sheer niftiness… So what do you think? find a good filling method, then some spring loading to prevent channeling, and off for a testdive :-) 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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21st June 2007, 19:18	#5 (permalink)
undrh2o Chris Miller Current Rebreather/s: Other CCR Dolphin Home Build Other Rebreather/s: Inspiration Classic Other CCR Dolphin Home Build Join Date: Apr 2006 Location: Ottawa, Canada Posts: 206	Re: hemispherical scrubber Quote: (Originally Posted by Auto Matic) I would like to rig a spit trap and So what do you think? Spit trap? Stay with the theme and use a kitchen sponge - nice work - have some green!
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21st June 2007, 22:55	#6 (permalink)
Skipbreather Reads the fine print Current Rebreather/s: Megalodon Home Build Other Rebreather/s: Not Bought Yet MK 15.X Home Build Join Date: Mar 2005 Location: Chicago, Illinois, USA Posts: 584	Re: hemispherical scrubber [quote=Auto Matic;121633 So what do you think?[/quote] Hot glue....Sorb..... exothermic reaction....... __________________ "Entropy RULES! Enjoy the interim."
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22nd June 2007, 06:06	#7 (permalink)
Auto Matic New Member Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: May 2007 Location: Playa Del Carmen, Mexico Posts: 13	Re: hemispherical scrubber I will try a couple things to keep the sorb compacted. Packing it to the "tight as a tick" stage was my first guess, with wedging something under that screw on lid coming second. The plastic is flexible, as well as the colander mesh. Both will provide compacting force. I will give it a run and see how warm it gets. To tell the truth, I didn't really think of it since the scrubber is small and the glue is only flowing at high temps. That's what this forum is for, right? Gracias carnal!. The beta rig will have the parts stitched with mono leader and sealed with rtv. Any problems with rtv? Any better sealants? I have patched intake manifolds and valve covers with rtv and it has worked, sort of. If I get one to the diving stage will I receive my invitation to the Tom Rose Clever Monkey Award Banquet?
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22nd June 2007, 13:03	#8 (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: hemispherical scrubber Fantastic! Could you make two and chest mount them? Last edited by Mdemon : 22nd June 2007 at 13:11. Reason: <snigger>
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22nd June 2007, 13:38	#9 (permalink)
divetheworld Dive porn pimp Current Rebreather/s: Inspiration Classic Other CCR Other Rebreather/s: Not Bought Yet Inspiration Classic Inspiration Vision Classic Kiss Other CCR Join Date: Mar 2005 Location: Leeds, England Posts: 1,636	Re: hemispherical scrubber Quote: (Originally Posted by Mdemon) Fantastic! Could you make two and chest mount them? You are my hero. __________________ Attitude and self praise is no reccomendation. Dont try to be a great man, just be a man and let history be the judge of you. *WWW.NARKEDAT90.CO.UK* *http://www.grpservices.com/pursuit/* Supporting Shearwater Research Products in Europe
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22nd June 2007, 17:43	#10 (permalink)
Auto Matic New Member Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: May 2007 Location: Playa Del Carmen, Mexico Posts: 13	Re: hemispherical scrubber For trim reasons I had to belt mount it. I heard, "Check out the unit on that mexican!" for the first time ever at the beach
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