meg counterlung butchering

**wedivebc** · 27th August 2006, 04:16

I have a friend with an industrial sewing machine and I have heard some people sew up one edge of their counterlungs to lower the profile and reduce the volume.
Has anyone here done this and can you describe how it is done? Pictures will result in extreme gratitude

silent running · 27th August 2006, 07:08

Quote: (Originally Posted by wedivebc)

I have a friend with an industrial sewing machine and I have heard some people sew up one edge of their counterlungs to lower the profile and reduce the volume.
Has anyone here done this and can you describe how it is done? Pictures will result in extreme gratitude

Intersting idea wedivebc, but wouldn't that make the plunger style ADV sit at a funny angle and maybe not open properly? -Andy

Steve · 27th August 2006, 07:35

Quote: (Originally Posted by wedivebc)

I have a friend with an industrial sewing machine and I have heard some people sew up one edge of their counterlungs to lower the profile and reduce the volume.
Has anyone here done this and can you describe how it is done? Pictures will result in extreme gratitude

Hi,

Easy to do and I have only seen it done for small ladies. The easiest way to check you are sewing the correct ammount is to make use of some strong clips that will hold the edges of the lungs together. By experimenting this way you will be able to work out where and how much sewing needs to be done. The ones I made smaller were made smaller on the bottom outside edge. WOB was not altered and I'm guessing that if you made the top of the lung into a bit of a botleneck it may be increased.

Where to sew on the lung is fairly obvious. I would be amazed if you decided to sew in a spot that put a hole in the lung.

As for the ADV. As long as you are even in this area it isn't an issue due to the foot on the ADV.

I hope this helps.

ISC · 27th August 2006, 20:29

Quote: (Originally Posted by wedivebc)

I have a friend with an industrial sewing machine and I have heard some people sew up one edge of their counterlungs to lower the profile and reduce the volume.
Has anyone here done this and can you describe how it is done? Pictures will result in extreme gratitude

I just had to respond on this.

CAUTION! If you must perform this level of surgery on your Meg Cordura Nylon Counterlung, stitch only along the center of the edge seam dressing tape. DO NOT cross over the rf welded seal or you will have leaks.

We have modified a few systems for customers in the past. It also helps if you have a hot glue gun to glue the top and bottom sections together in the area you want to stitch to hold the material in place while sewing. Please glue only on the edge tape where the two surfaces meet. Be sure to use a large needle, like size 23, in your heavy industrial sewing machine. We recommend sewing about 1" to 2" in the area in between the Tee piece port and the ADV port. The tee piece area has a larger volume so start the stitching just after the counterlung tapers down in thickness. Good luck. If you screw up, [

] replacements are expensive.

One thing nice about the MEG is it allows user customization. I see a lot of ideas with merit in these posts. Oh, yes, I HUG my MEG every day. I HUG every MEG that I ship out the doors of the MEG Hatchery. Dive safely, dive often. - Steve

***Decodiver*** · 27th August 2006, 20:35

Hey Steve,

Nice to have you on RBW buddy.

I will call you tomorrow during the day re: my coming orders.

Take care,

Dave.

RonMicjan · 27th August 2006, 21:27

patti and I both have that mod, its eases the buoyancy issues on ascent and reduces the clutter on the divers chest. I still have more CL volume than I need and the ADV still works perfect. I understand that on the breathing machine it makes a just measureable difference in WOB, but I cant tell the difference.

Steve, its ok to hug the meg's, just dont drool on them please.

**wedivebc** · 27th August 2006, 21:37

Quote: (Originally Posted by ISC)

I just had to respond on this.

CAUTION! If you must perform this level of surgery on your Meg Cordura Nylon Counterlung, stitch only along the center of the edge seam dressing tape. DO NOT cross over the rf welded seal or you will have leaks.

We have modified a few systems for customers in the past. It also helps if you have a hot glue gun to glue the top and bottom sections together in the area you want to stitch to hold the material in place while sewing. Please glue only on the edge tape where the two surfaces meet. Be sure to use a large needle, like size 23, in your heavy industrial sewing machine. We recommend sewing about 1" to 2" in the area in between the Tee piece port and the ADV port. The tee piece area has a larger volume so start the stitching just after the counterlung tapers down in thickness. Good luck. If you screw up, [

] replacements are expensive.

One thing nice about the MEG is it allows user customization. I see a lot of ideas with merit in these posts. Oh, yes, I HUG my MEG every day. I HUG every MEG that I ship out the doors of the MEG Hatchery. Dive safely, dive often. - Steve

Hi Steve
I am honoured that your first post here is on my thread. Welcome to RBW.
Got some pics of this mod?

teomannaskali · 27th August 2006, 22:06

Hmm

I dont know much about this, but if i were you then I would probably first try some kind of bungee cord system to see if that is really what you want.

Or you could try some thing like a bag seal. I couldnt find it on the net right now, but it is like a big hairpin, that you can apply to the part that you want reduced.

I had gotten mine from ikea. To seal big coffee bags.

Alternatively you can use two pieces of pipe, help parallel and a rope threaded though them and tied really thight. The part of the cl that you dont want is placed in between the two pieces of pipe (when it is deflated ofcourse)

Teoman

**wedivebc** · 28th August 2006, 19:39

Quote: (Originally Posted by RonMicjan)

patti and I both have that mod, its eases the buoyancy issues on ascent and reduces the clutter on the divers chest. I still have more CL volume than I need and the ADV still works perfect. I understand that on the breathing machine it makes a just measureable difference in WOB, but I cant tell the difference.

Steve, its ok to hug the meg's, just dont drool on them please.

Hey Ron, I would be real grateful if you could give me a couple of pics of yours or Patti's CLs so I could show my guy where to do the deed. I know you have a camera bud so how about it?

RonMicjan · 28th August 2006, 20:57

will do

27th August 2006, 04:16	#1 (permalink)
wedivebc Dave Tomblin Current Rebreather/s: Megalodon Other CCR Other Rebreather/s: Not Bought Yet Inspiration Classic Sport Kiss Other CCR Join Date: Feb 2005 Location: Vancouver Island BC Canada Posts: 1,508	meg counterlung butchering I have a friend with an industrial sewing machine and I have heard some people sew up one edge of their counterlungs to lower the profile and reduce the volume. Has anyone here done this and can you describe how it is done? Pictures will result in extreme gratitude __________________ Cheers, Dave.... Man is the only animal burdened with the knowledge he will eventually die
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27th August 2006, 07:08	#2 (permalink)
silent running Mature mouth breather Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: Jun 2005 Location: U.S.A. Brooklyn, New York Posts: 1,873	Re: meg counterlung butchering Quote: (Originally Posted by wedivebc) I have a friend with an industrial sewing machine and I have heard some people sew up one edge of their counterlungs to lower the profile and reduce the volume. Has anyone here done this and can you describe how it is done? Pictures will result in extreme gratitude Intersting idea wedivebc, but wouldn't that make the plunger style ADV sit at a funny angle and maybe not open properly? -Andy
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27th August 2006, 07:35	#3 (permalink)
Steve Ladies bring a plate Current Rebreather/s: Megalodon Home Build Other Rebreather/s: Not Bought Yet Inspiration Classic Sport Kiss Classic Kiss MK 15.X Home Build Join Date: Feb 2005 Location: Perth - Australia Posts: 1,126	Re: meg counterlung butchering Quote: (Originally Posted by wedivebc) I have a friend with an industrial sewing machine and I have heard some people sew up one edge of their counterlungs to lower the profile and reduce the volume. Has anyone here done this and can you describe how it is done? Pictures will result in extreme gratitude Hi, Easy to do and I have only seen it done for small ladies. The easiest way to check you are sewing the correct ammount is to make use of some strong clips that will hold the edges of the lungs together. By experimenting this way you will be able to work out where and how much sewing needs to be done. The ones I made smaller were made smaller on the bottom outside edge. WOB was not altered and I'm guessing that if you made the top of the lung into a bit of a botleneck it may be increased. Where to sew on the lung is fairly obvious. I would be amazed if you decided to sew in a spot that put a hole in the lung. As for the ADV. As long as you are even in this area it isn't an issue due to the foot on the ADV. I hope this helps. __________________ WARNING: I contain occasional coarse language, extreme sexual references, nudity, and adult themes, which may offend some people - Usually churchy types.
(Online)

27th August 2006, 20:29	#4 (permalink)
ISC New Member Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: May 2006 Location: Centralia WA USA Posts: 2	Re: meg counterlung butchering Quote: (Originally Posted by wedivebc) I have a friend with an industrial sewing machine and I have heard some people sew up one edge of their counterlungs to lower the profile and reduce the volume. Has anyone here done this and can you describe how it is done? Pictures will result in extreme gratitude I just had to respond on this. CAUTION! If you must perform this level of surgery on your Meg Cordura Nylon Counterlung, stitch only along the center of the edge seam dressing tape. DO NOT cross over the rf welded seal or you will have leaks. We have modified a few systems for customers in the past. It also helps if you have a hot glue gun to glue the top and bottom sections together in the area you want to stitch to hold the material in place while sewing. Please glue only on the edge tape where the two surfaces meet. Be sure to use a large needle, like size 23, in your heavy industrial sewing machine. We recommend sewing about 1" to 2" in the area in between the Tee piece port and the ADV port. The tee piece area has a larger volume so start the stitching just after the counterlung tapers down in thickness. Good luck. If you screw up, [ ] replacements are expensive. One thing nice about the MEG is it allows user customization. I see a lot of ideas with merit in these posts. Oh, yes, I HUG my MEG every day. I HUG every MEG that I ship out the doors of the MEG Hatchery. Dive safely, dive often. - Steve Last edited by ISC : 27th August 2006 at 20:36.
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27th August 2006, 20:35	#5 (permalink)
*Decodiver* Administrator Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Jan 2005 Location: Geneva Posts: 2,194	Re: meg counterlung butchering Hey Steve, Nice to have you on RBW buddy. I will call you tomorrow during the day re: my coming orders. Take care, Dave. __________________ CCR/OC Trimix Instructor Trainer CCR Training to Mixed Gas in Switzerland, France, UK & Germany on Megalodon/COPIS-Megalodon/KISS/Sport KISS/Ouroboros/rEvo/Inspiration/Evolution/Sentinel www.zerogravitydiving.com Rebreather World Terms & Conditions
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27th August 2006, 21:27	#6 (permalink)
RonMicjan Cap Ron scourge of the NW Current Rebreather/s: Megalodon Dolphin Home Build Other Rebreather/s: Sport Kiss Classic Kiss Dolphin Home Build Join Date: Feb 2005 Location: Cape Disapointment, The Graveyard of the Pacific Posts: 1,120	Re: meg counterlung butchering patti and I both have that mod, its eases the buoyancy issues on ascent and reduces the clutter on the divers chest. I still have more CL volume than I need and the ADV still works perfect. I understand that on the breathing machine it makes a just measureable difference in WOB, but I cant tell the difference. Steve, its ok to hug the meg's, just dont drool on them please. __________________ Marine rescue, towing and salvage. Interfering with natural selection since 1983. www.tmishop.com Diving bits etc. www.seatowpdx.com The Summer Job
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27th August 2006, 21:37	#7 (permalink)
wedivebc Dave Tomblin Current Rebreather/s: Megalodon Other CCR Other Rebreather/s: Not Bought Yet Inspiration Classic Sport Kiss Other CCR Join Date: Feb 2005 Location: Vancouver Island BC Canada Posts: 1,508	Re: meg counterlung butchering Quote: (Originally Posted by ISC) I just had to respond on this. CAUTION! If you must perform this level of surgery on your Meg Cordura Nylon Counterlung, stitch only along the center of the edge seam dressing tape. DO NOT cross over the rf welded seal or you will have leaks. We have modified a few systems for customers in the past. It also helps if you have a hot glue gun to glue the top and bottom sections together in the area you want to stitch to hold the material in place while sewing. Please glue only on the edge tape where the two surfaces meet. Be sure to use a large needle, like size 23, in your heavy industrial sewing machine. We recommend sewing about 1" to 2" in the area in between the Tee piece port and the ADV port. The tee piece area has a larger volume so start the stitching just after the counterlung tapers down in thickness. Good luck. If you screw up, [ ] replacements are expensive. One thing nice about the MEG is it allows user customization. I see a lot of ideas with merit in these posts. Oh, yes, I HUG my MEG every day. I HUG every MEG that I ship out the doors of the MEG Hatchery. Dive safely, dive often. - Steve Hi Steve I am honoured that your first post here is on my thread. Welcome to RBW. Got some pics of this mod? __________________ Cheers, Dave.... Man is the only animal burdened with the knowledge he will eventually die
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27th August 2006, 22:06	#8 (permalink)
teomannaskali RBW Member Current Rebreather/s: Home Build Other Rebreather/s: Not Bought Yet Home Build Join Date: Feb 2006 Location: Istanbul TR Posts: 421	Re: meg counterlung butchering Hmm I dont know much about this, but if i were you then I would probably first try some kind of bungee cord system to see if that is really what you want. Or you could try some thing like a bag seal. I couldnt find it on the net right now, but it is like a big hairpin, that you can apply to the part that you want reduced. I had gotten mine from ikea. To seal big coffee bags. Alternatively you can use two pieces of pipe, help parallel and a rope threaded though them and tied really thight. The part of the cl that you dont want is placed in between the two pieces of pipe (when it is deflated ofcourse) Teoman
(Offline)

28th August 2006, 19:39	#9 (permalink)
wedivebc Dave Tomblin Current Rebreather/s: Megalodon Other CCR Other Rebreather/s: Not Bought Yet Inspiration Classic Sport Kiss Other CCR Join Date: Feb 2005 Location: Vancouver Island BC Canada Posts: 1,508	Re: meg counterlung butchering Quote: (Originally Posted by RonMicjan) patti and I both have that mod, its eases the buoyancy issues on ascent and reduces the clutter on the divers chest. I still have more CL volume than I need and the ADV still works perfect. I understand that on the breathing machine it makes a just measureable difference in WOB, but I cant tell the difference. Steve, its ok to hug the meg's, just dont drool on them please. Hey Ron, I would be real grateful if you could give me a couple of pics of yours or Patti's CLs so I could show my guy where to do the deed. I know you have a camera bud so how about it? __________________ Cheers, Dave.... Man is the only animal burdened with the knowledge he will eventually die
(Offline)

28th August 2006, 20:57	#10 (permalink)
RonMicjan Cap Ron scourge of the NW Current Rebreather/s: Megalodon Dolphin Home Build Other Rebreather/s: Sport Kiss Classic Kiss Dolphin Home Build Join Date: Feb 2005 Location: Cape Disapointment, The Graveyard of the Pacific Posts: 1,120	Re: meg counterlung butchering will do __________________ Marine rescue, towing and salvage. Interfering with natural selection since 1983. www.tmishop.com Diving bits etc. www.seatowpdx.com The Summer Job
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