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Jotaro Yoshida
(jotaro) - MLife

Locale: Sagamihara
Tyvek mono-pole tent project on 04/28/2009 01:50:59 MDT Print View

i made a prototype of mono-pole tent by using Tyvek for the body and Dyneema X Gridstop for cap and reinforcement.

tyvek mono-pole tent project

also plz take a look my site.
http://web.me.com/catchy/SlowLite/

Edited by jotaro on 08/27/2009 12:50:31 MDT.

Ashley Brown
(ashleyb) - F
Tyvek mono-pole tent project on 04/28/2009 01:54:33 MDT Print View

Nice!

What does it weigh? Is it for 1 person or 2?

EDIT: Specs from website.........

conical shape, mono-pole, 11 stakes, 2 person+, 4 season, water resistant, breathable, for mild weather condition

seam-line less design, made in japan

dry weight : 21.9 oz. (620g) (without a pole and stakes)

radius 5’ (150cm)

height 6’ (180cm)

Edited by ashleyb on 04/28/2009 01:56:21 MDT.

Walter Carrington
(Snowleopard) - M

Locale: Mass.
RE: Tyvek mono-pole tent project on 04/28/2009 08:08:16 MDT Print View

Very nice jotaro. How did you do the Dyneema gridstop reinforcement at the top? Any pics of the reinforcement?
--Walter

Richard Nisley
(richard295) - M

Locale: San Francisco Bay Area
Re: Tyvek mono-pole tent project on 04/28/2009 10:42:43 MDT Print View

Jotaro,

Very nice job job! Why did you use McNett Silnet versus McNett Seam Grip for the seams?

Matthew Bishop
(mattsbishop) - F - M

Locale: Northern Frontrange, Colorado
Re: Tyvek mono-pole tent project on 04/28/2009 12:49:33 MDT Print View

Neat. Teepee/(pyra-)mid style tents are really cool IMO, and I like seeing one made of Tyvek.

I'm interested in how you do the reinforcement cap since it seems the stresses would be concentrated at the peak and getting that right is key to a strong, weather-worthy teepee/mid.

Matthew Roberts
(matthewjamesroberts) - F

Locale: San Fernando Valley
seamless on 04/28/2009 19:40:47 MDT Print View

how did you manage to keep it seamless?

Jotaro Yoshida
(jotaro) - MLife

Locale: Sagamihara
re: on 04/29/2009 03:11:29 MDT Print View

thanks folks to be interested in my trial.

i've been interested in using tyvek for the body of my tent since i have been using henry's tyvek sublite . its light enough and i liked its design and concept itself. then i started thinking to make my own with tyvek.

i thought tyvek is not so durable compare to sil-nylon. in fact, my tyvek sublite tore once along with seam-line where seam-line does work like tear-off line causes by continuous tiny hole of needle and when and where the tension maximized. so that i have to be careful to seam with more thin needle than #14. the strength of tear resistance of tyvek 1443R which i used is 9.2 kgf/5cm. i've been considering while i was planning this and make it sure to have enough strength by reinforcement using dyneema x grid stop.

i didn't say no seam line with this but it has less seam line. because of i am using 3.3 yd wide tyvek 1443R. i must say its not so easy to handle this huge material.

i experienced mild and rather hard rain and wind with this. but it seems to me ok so far. since i'm not a serious extreme hiker. i didn't have any condensations and leaks at that time, even if this prototype has no vent-hole. i though this has enough capacity surface area and air while tyvek takes breath.

i'm going to keep on testing with this and find out to make this better.
and i will make with different version of soft tyvek which has 1.5 times durable than this version.

i must say special thanks to henry who inspired me a lot to make this.

Matthew Bishop
(mattsbishop) - F - M

Locale: Northern Frontrange, Colorado
Re: re: on 04/29/2009 10:20:18 MDT Print View

Thanks for the tip on using a smaller needle. I'll remember that. And yes, that wide material is hard to handle without a giant work table.

It's interesting to me that type 1443R tyvek worked so well for you in the rain. I got some from a local kite company and while it breathed quite well, a simple test where I put a liter of water inside the tyvek and tied it up with a string showed the water very quickly 'weaping' through. The tyvek appeared to be of very uneven thickness though--maybe I got a bad piece.

Matthew Roberts
(matthewjamesroberts) - F

Locale: San Fernando Valley
keep on on 04/29/2009 19:29:19 MDT Print View

keep on posting as you make progress. We're reading.

Jotaro Yoshida
(jotaro) - MLife

Locale: Sagamihara
re:re: on 04/29/2009 20:11:53 MDT Print View

i got my tyvek from local agricultural company in japan. actually they don't call it 1443R. however, at my observation, i presumed it as 1443R. and they have two kind of tyvek and they gives different number of item from which i saw at a web site about tyvek of the US DuPont. and the other tyvek next time i try to use, which 1.5 times durable and thick but not stiff, has a different surface from 1443R. i wonder how many versions of tyvek exist.

Jotaro Yoshida
(jotaro) - MLife

Locale: Sagamihara
update on 08/15/2009 10:47:39 MDT Print View

I have added some major update for my tyvek shelter.

Tyvek C-ONE 0.9.5

http://web.me.com/catchy/SlowLite/

Edited by jotaro on 08/27/2009 12:51:16 MDT.

Mark McLauchlin
(markmclauchlin) - MLife

Locale: Western Australia
Re: update on 08/15/2009 19:56:24 MDT Print View

Very well done,

When ever I see a teepee I am reminded of Eustace Conway (reading the book now for the second time).

Keep it up mate, looks really cool

Yukio Yamakawa
(JSBJSB) - F

Locale: Tokyo,JAPAN
Great on 08/16/2009 10:01:58 MDT Print View

Great improvements have been implemented.
Ventilation will be improved performance.

素晴らしい改良が行われましたね!
これで換気性能も、グンと向上したことでしょう

JSBも、とても注目しています!

Troy Ammons
(tammons) - F - M
Re: Tyvek mono-pole tent project on 08/16/2009 12:06:46 MDT Print View

So have you had a chance to give it a substantial water test. I am testing the cloth grade of tyvek from quest which would be 1443R. It has a perforated pattern on it. One side is sort of more plastic and smoother than the cloth side.

I made a folded cone, filled it up with water and it does leak or a better word would be weep, but just a little. After 2 days its still holding water. It leaks at first then pretty much stops.

If you rub the outside it will start weeping again, but just for a short while then stops.

I have it set up over an aluminum pot in the kitchen, and it leaks so little that in the morning the leaked water has evaporated.

I intended to build a shaped tarp with it, but started second guessing after seeing the initial weeping of the material. Now that I realize that the weeping is very slight and this material does breath, I think it might work in a setup like yours. I do think a good slope and taught pitch would be imperative.

Edited by tammons on 08/16/2009 12:11:22 MDT.

Jotaro Yoshida
(jotaro) - MLife

Locale: Sagamihara
Re: on 08/16/2009 21:19:13 MDT Print View

>Mark
Thak you. Eustace Conway's story is very interesting for me as he is same age. I have to read his book.

>JSB
Thank you. Arigato Gozaimasu. I have to make this more refined. I'm looking forward to show you this in next meeting.

>Troy
Thank you for apt suggestion.
I haven't had a chance to do like that. but I have experienced from actual study like following.
When I used this tent rather hard rain with wind gust almost all night, I observed several "weeping" spot. At first I thought it must be condensation. but I promptly noticed that there is only place got wet where is not along with seam sealed seam line. If it was condensation, it must have wet evenly all over surface inside of the tent. It may possibly caused by unevenness of surface since Tyvek is nonwoven Spunbonded olefin. And I didn't get wet so much and nor condensation at that time. Anyway, I was hardly wet. I think it is not so big problem to use this material so far.

After these experience, I am convinced of Tyvek is suitable material for light weight shelter for general hiking purpose. But I don't say it is suitable for extreme condition.

Jotaro Yoshida
(jotaro) - MLife

Locale: Sagamihara
About Tyvek on 08/17/2009 00:12:58 MDT Print View

http://web.me.com/catchy/SlowLite/About_Tyvek®.html

Edited by jotaro on 08/19/2009 15:38:35 MDT.

Hajime Kawasaki
(Hajime) - MLife

Locale: Sakuragicho
Marvelous Work ! How about Port for stove pipe ? on 08/19/2009 10:23:10 MDT Print View

こんにちは、先日、2次会から参加した者で川崎と申します。
本当に素晴らしいTipiですね!
Titaniumgoat の Vertex Tipi の様に、リムーバブルな煙突ポートをつける予定は無いですか? あちらは難燃性のグラスファイバー性でとっても重いのですが、今話題のカーボンフェルトの厚めの物で作るとか、、、是非ご検討ください。

Hello ! How are you getting along ? Amazing Tipi !
I love my Vertex Tipi made by Titaniumgoat.
Do you have a plan to attach the removable stove pipe port such as Titaniumgoat's ?
Their "Port" is made with a kind of grassfiber,that is fire resistence.
But too heavy for ultraliters.
So , any idea like Carbon Felt ?

Jotaro Yoshida
(jotaro) - MLife

Locale: Sagamihara
Re: Marvelous Work ! How about Port for stove pipe ? on 08/19/2009 16:20:33 MDT Print View

こんにちは、カワサキさん。その節は、どうも。
ご提案、ありがとうございます。前回のミーティングでカーボンフェルトを見て以来、リムーバブルの煙突ポートのアイデアは漠然と持ってました。インストールする軽量ストーブの開発も含めて、是非、検討して、実現したいと思います。

Kawasaki san,
Thank you for valuable advice.
Since I have seen the carbon felt at last meeting. I 'm having an idea to install a removable stove boots to my tipi like Titaniumgoat's one. Hopefully, I will develop it including a lite weight stove in the near future.

Jotaro Yoshida
(jotaro) - MLife

Locale: Sagamihara
Tyvek 700AG on 10/08/2009 22:49:37 MDT Print View

Now I realized that my using Tyvek 700AG is different from Tyvek 1443R.
As first signt, they look like almost the same. We couldn't notice difference even if we observed surface closely. but when I went to a trail with my friend who brought his own MYOG Tyvek shelter made by Tyvek 1443R. We noticed difference of surface between mine and his Tyvek.

Tyvek mono-pole solo shelter

Jotaro Yoshida
(jotaro) - MLife

Locale: Sagamihara
Bathtub floor for C-ONE on 10/17/2009 17:29:30 MDT Print View

1.1oz Sil-Nylon, W8.5ft x D4.3ft x H3.5inch


Half bathtub floor for C-ONE