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Easton poles .340 vs .344

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PostedApr 1, 2008 at 8:34 pm

Further into my study of tent designs, I have come finally to poles. CF are out because this will be my first tent and CF are costly.

I have found DIY aluminium poles only at questoutfitters.com (If you know of any other source let me know.)

.433 diam poles are too heavy, so Im looking at .340 diam and .344 diam poles. Both are made of 7075 – T9 aluminium. The (.344) Nanolites are made lighter-weight by having a thinner wall thickness, and a bit larger diameter, but still retain the tensile strength of the .340's [questoutfitters]. I will be using 3 45 degrees pole arch and rely on the aluminium to make the rest of the curve. Two such poles will be used in a tunnel tent.

I know GG and Tarptents both use .344 type poles. But I havent found any detailed comparison between them. Can someone explain me what are strenght and weaknesses of each?

Steven Evans BPL Member
PostedApr 2, 2008 at 9:58 am

I worked with Easton last year, and you can purchase 7075-T6 tubes from them at full lengths (about 6 feet). Then you can cut and machine away.

techinfo@eastontp.com

You could probably forward your questions to them, an they would answer them.

If I understand you corectlty, you have 3 poles with 45* ferrule between them, and you want the poles to bend to make up the difference. Assuming you want 180*, each of your poles will have to bend (deflect) 15*, without breaking. You can calculate this, but you will need the properties of the material, along with your pole dimensions. If the manufacturer can't help you out with these calculations, let me know and I'll give you a hand.

PostedApr 2, 2008 at 8:57 pm

Steven, sorry I didnt explain well. I want to make two poles:

1: 2 18" + 45* ferrule + 1 26" + 45* ferrule + 1 26" + 45* ferrule + 2 18"
2: 2 18" + 45* ferrule + 1 18" + 45* ferrule + 1 18" + 45* ferrule + 2 18"

Even though .433 diam are heavy I am reconsidering to make the tunnel stronger.

I am sure full lenght tubes would be cheaper but it wont be easy to import them.

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