Topic

MYOG Sleeping pad 2.0 – Down action

This topic has 9 replies, 4 voices, and was last updated 4 years ago by R.

Viewing 10 posts - 1 through 10 (of 10 total)

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May 25, 2011 at 6:03 pm #1274422

Ryan Smith
BPL Member

@violentgreen
Locale: East TN

Made a sleeping pad to help a friend(and because MYOG is addictive). Took about 8 hours total. My friend liked the weight of a NeoAir, but didn't like the price and 20" width. So, I talked him into letting me make a DAM for him. This one is a little heavier than a NeoAir due to the extra width & thickness but he isn't really into UL so won't worry about the extra couple ounces.
Nothing earth shattering here, just figured I would post.

Dimensions: 72"x24"x3"
Weight: 18 oz
Fill weight: 5-6oz 900 fill
Outer shell: 70d nylon
Baffle material: .33oz cuben

May 25, 2011 at 6:08 pm #1741148

todd
BPL Member

@funnymo
Locale: SE USA

Way to go Ryan! How did you seal the chambers?

Looks great.

May 25, 2011 at 7:46 pm #1741195

Jerry Adams
BPL Member

@retiredjerry
Locale: Oregon and Washington

Very nice

quite lightweight also

How did you do the valve?

May 25, 2011 at 7:46 pm #1741196

Ryan Smith
BPL Member

@violentgreen
Locale: East TN

Hi Todd,

I cut 66"x.25" strips out of the nylon and sewed the cuben in between for the baffles, then heat sealed them. It was a huge pain for saving probably 2 oz. but I just mostly wanted to see how it worked out. With that being said most likely will not be doing that again.

Ryan

May 25, 2011 at 8:01 pm #1741203

Ryan Smith
BPL Member

@violentgreen
Locale: East TN

Jerry,

I used an Airtime kite valve which I had previously used on the outside of the pad. Basically, just cut a round hole in the fabric & then it glues over it. On this one I instead used Seamgrip to glue the valve to the underside of the fabric so only the mouth piece is visible up through the hole in the fabric. Kind of hard to visualize. It just looks a little cleaner. Those valves only weigh 2 grams more than a Thermarest valve, but flow a ton more air which really helps deflation. Used nano-see-um to keep the down from escaping.

http://www.airtimekite.com/index.php/airtime-kite-valves/u-stick-valves.html

Ryan

Mar 31, 2020 at 4:17 pm #3638947

Asger B
Spectator

@fulltimehammockmonkey

<p style=”text-align: left;”>What type of nylon? I will be making one myself soon but don’t know what type of nylon to buy or what type of glue to use, is it silnylon?</p>

Mar 31, 2020 at 5:51 pm #3638973

Brad Rogers
BPL Member

@mocs123
Locale: Southeast Tennessee

Kookabay 2.0 ? :)

Mar 31, 2020 at 6:04 pm #3638977

Franco Darioli
Spectator

@franco
Locale: Gauche, CU.

This thread is from 2011

Mar 31, 2020 at 11:15 pm #3639027

R
Spectator

@autox

Here are some current links to materials and a how-to video.

https://www.diypackraft.com/shop/merchandise/fabric/lightweight-heat-sealable-ripstop-nylon/

https://www.diypackraft.com/shop/merchandise/valves/top-up-valve/

https://www.diypackraft.com/2019/06/28/new-video-iron-temperature-timing/

Haven’t tried one myself, but thought a lot about it.

Mar 31, 2020 at 11:19 pm #3639029

R
Spectator

@autox

https://backpackinglight.com/forums/topic/56903/

Stretchlon is still readily available at a reasonable price and weight.
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