It appears you have not yet registered with our community. To register for free click here
Rebreather World
       

Go Back   Rebreather World Rebreather Models, Design, and Accessories BOBs and Home Builds Home Build Rebreathers

Reply
 
LinkBack Thread Tools Display Modes
Old 21st June 2007, 05:39   #1 (permalink)
New Member
 
Auto Matic's Avatar

 
Join Date: May 2007
Location: Playa Del Carmen, Mexico
Posts: 13
Auto Matic is on a distinguished road Auto Matic is on a distinguished road
hemispherical scrubber

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?
Attached Images
File Type: jpg parts.jpg (53.9 KB, 337 views)
File Type: jpg scrubber_assembled.jpg (39.8 KB, 334 views)
File Type: jpg scrubber_bottom.jpg (56.2 KB, 332 views)
File Type: jpg scrubber_side.jpg (45.5 KB, 333 views)
File Type: jpg scrubber_top.jpg (56.8 KB, 335 views)
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 21st June 2007, 07:42   #2 (permalink)
Born Again Diver!
 
Dave1w's Avatar

 
Kiss, JJ
Ray, APOC, rEvo
Join Date: Jan 2005
Location: Indonesia / UK
Posts: 1,045
Dave1w has a spectacular aura about Dave1w has a spectacular aura about Dave1w has a spectacular aura about Dave1w has a spectacular aura about Dave1w has a spectacular aura about Dave1w has a spectacular aura about
Send a message via MSN to Dave1w
Re: hemispherical scrubber

Hmm, Interesting!

Dave
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 21st June 2007, 16:07   #3 (permalink)
Still Learning
 
Tom Rose's Avatar

 
Join Date: Oct 2005
Location: USA,North Carolina
Posts: 331
Tom Rose is a glorious beacon of light Tom Rose is a glorious beacon of light Tom Rose is a glorious beacon of light Tom Rose is a glorious beacon of light Tom Rose is a glorious beacon of light Tom Rose is a glorious beacon of light Tom Rose is a glorious beacon of light Tom Rose is a glorious beacon of light Tom Rose is a glorious beacon of light Tom Rose is a glorious beacon of light Tom Rose is a glorious beacon of light
Re: hemispherical scrubber

Quote: (Originally Posted by Auto Matic) View Original Post
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
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 21st June 2007, 17:17   #4 (permalink)
rEvo's daddy

 
paulraymaekers's Avatar

 
rEvo
Join Date: May 2005
Location: belgium
Posts: 3,908
paulraymaekers has a reputation beyond repute paulraymaekers has a reputation beyond repute paulraymaekers has a reputation beyond repute paulraymaekers has a reputation beyond repute paulraymaekers has a reputation beyond repute paulraymaekers has a reputation beyond repute paulraymaekers has a reputation beyond repute paulraymaekers has a reputation beyond repute paulraymaekers has a reputation beyond repute paulraymaekers has a reputation beyond repute paulraymaekers has a reputation beyond repute
Re: hemispherical scrubber

Quote: (Originally Posted by Auto Matic) View Original Post
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 ...
(Online)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 21st June 2007, 18:18   #5 (permalink)
Chris Miller
 
undrh2o's Avatar

 
Dolphin (Atlantis)
IDA-71
Join Date: Apr 2006
Location: Ottawa, Canada
Posts: 380
undrh2o is a jewel in the rough undrh2o is a jewel in the rough undrh2o is a jewel in the rough undrh2o is a jewel in the rough undrh2o is a jewel in the rough undrh2o is a jewel in the rough undrh2o is a jewel in the rough
Re: hemispherical scrubber

Quote: (Originally Posted by Auto Matic) View Original Post
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!
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 21st June 2007, 21:55   #6 (permalink)
Reads fine print (mostly)
 
Skipbreather's Avatar

 
MEGALODON
IDA71 IDA64 AKA60 BMR500 RGUFM
Join Date: Mar 2005
Location: Chicago, Illinois, USA
Posts: 1,246
Skipbreather has a brilliant future Skipbreather has a brilliant future Skipbreather has a brilliant future Skipbreather has a brilliant future Skipbreather has a brilliant future Skipbreather has a brilliant future Skipbreather has a brilliant future Skipbreather has a brilliant future Skipbreather has a brilliant future Skipbreather has a brilliant future Skipbreather has a brilliant future
Re: hemispherical scrubber

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

Hot glue....Sorb..... exothermic reaction....... :p
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 22nd June 2007, 05:06   #7 (permalink)
New Member
 
Auto Matic's Avatar

 
Join Date: May 2007
Location: Playa Del Carmen, Mexico
Posts: 13
Auto Matic is on a distinguished road Auto Matic is on a distinguished road
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?
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 22nd June 2007, 12:03   #8 (permalink)
SiegeEngine II
 
Mdemon's Avatar

 
Join Date: Feb 2007
Location: SWUK
Posts: 2,035
Mdemon has a reputation beyond repute Mdemon has a reputation beyond repute Mdemon has a reputation beyond repute Mdemon has a reputation beyond repute Mdemon has a reputation beyond repute Mdemon has a reputation beyond repute Mdemon has a reputation beyond repute Mdemon has a reputation beyond repute Mdemon has a reputation beyond repute Mdemon has a reputation beyond repute Mdemon has a reputation beyond repute
Smile Re: hemispherical scrubber

Fantastic! Could you make two and chest mount them?

Last edited by Mdemon; 22nd June 2007 at 12:11.. Reason: <snigger>
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 22nd June 2007, 12:38   #9 (permalink)
Brent - Narked at 90

 
divetheworld's Avatar

 
Deep Pursuit or a Camelion
and 11 others inc. a UT-240
Join Date: Mar 2005
Location: Prescot, England
Posts: 2,420
divetheworld has a reputation beyond repute divetheworld has a reputation beyond repute divetheworld has a reputation beyond repute divetheworld has a reputation beyond repute divetheworld has a reputation beyond repute divetheworld has a reputation beyond repute divetheworld has a reputation beyond repute divetheworld has a reputation beyond repute divetheworld has a reputation beyond repute divetheworld has a reputation beyond repute divetheworld has a reputation beyond repute
Send a message via Skype™ to divetheworld
Re: hemispherical scrubber

Quote: (Originally Posted by Mdemon) View Original Post
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
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Old 22nd June 2007, 16:43   #10 (permalink)
New Member
 
Auto Matic's Avatar

 
Join Date: May 2007
Location: Playa Del Carmen, Mexico
Posts: 13
Auto Matic is on a distinguished road Auto Matic is on a distinguished road
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 ;)
(Offline)
 
Digg this Post!Add Post to del.icio.us
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT. The time now is 08:07.


RebreatherWorld.Com ©2005 - 2013
Rebreather World, RBW and the Rebreather World Logo are Trademarks
All rights reserved, no republishing of content without written permission.
By using this website you have agreed to our Terms & Conditions of Use

free counters

Search Engine Optimization by vBSEO 3.1.0

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254