hemispherical scrubber

Auto Matic · 21st June 2007, 05:39

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, 07:42

Hmm, Interesting!

Dave

Tom Rose · 21st June 2007, 16:07

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, 17:17

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, 18:18

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, 21:55

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

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

:p

Auto Matic · 22nd June 2007, 05:06

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, 12:03

Fantastic! Could you make two and chest mount them?

divetheworld · 22nd June 2007, 12:38

Quote: (Originally Posted by Mdemon)

Fantastic! Could you make two and chest mount them?

You are my hero.

Auto Matic · 22nd June 2007, 16:43

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, 07:42	#2 (permalink)
Dave1w Born Again Diver! Kiss, JJ Dolphin, Ray, APOC Join Date: Jan 2005 Location: Indonesia / UK Posts: 897	Re: hemispherical scrubber Hmm, Interesting! Dave
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21st June 2007, 16:07	#3 (permalink)
Tom Rose Still Learning 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
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21st June 2007, 17:17	#4 (permalink)
paulraymaekers rEvo's daddy rEvo Join Date: May 2005 Location: belgium Posts: 3,641	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 ...."Yes you have to pre-breathe to activate the scrubber sorb, anyone who says different doesn't know what they are talking about!"... .... to get more accurate CO2 injection in the breathing machine we put 2 mass flow controllers in series ... .... radial scrubbers give longer dwell time than axials... .... the earth is flat and ...
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21st June 2007, 18:18	#5 (permalink)
undrh2o Chris Miller Dolphin (Atlantis) IDA-71 Join Date: Apr 2006 Location: Ottawa, Canada Posts: 350	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, 21:55	#6 (permalink)
Skipbreather Reads fine print (mostly) MEGALODON IDA71 IDA64 AKA60 BMR500 RGUFM Join Date: Mar 2005 Location: Chicago, Illinois, USA Posts: 1,205	Re: hemispherical scrubber [quote=Auto Matic;121633 So what do you think?[/quote] Hot glue....Sorb..... exothermic reaction....... :p
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22nd June 2007, 05:06	#7 (permalink)
Auto Matic New Member 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, 12:03	#8 (permalink)
Mdemon SiegeEngine II Join Date: Feb 2007 Location: SWUK Posts: 2,035	Re: hemispherical scrubber Fantastic! Could you make two and chest mount them? Last edited by Mdemon; 22nd June 2007 at 12:11.. Reason: <snigger>
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22nd June 2007, 12:38	#9 (permalink)
divetheworld Brent - Narked at 90 Deep Pursuit or a Camelion and 11 others inc. a UT-240 Join Date: Mar 2005 Location: Prescot, England Posts: 2,424	Re: hemispherical scrubber Quote: (Originally Posted by Mdemon) Fantastic! Could you make two and chest mount them? You are my hero. __________________ Copying skips understanding. Understanding is how you grow. You have to understand why something works or why something is how it is. When you copy it, you miss that. *WWW.NARKEDAT90.COM* www.puwer.co.uk PUWER and Machinery CE Marking www.ce-eu.com
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22nd June 2007, 16:43	#10 (permalink)
Auto Matic New Member 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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