Catenary curve help?
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Tristana Rodriguez
(Tristana) - F
Catenary curve help? on 05/22/2012 05:34:56 MDT Print View

Hello everyone

I'm new on here but I recently bought the tutorial for the pyramid tent and have started work!

I've had to tweak the size of the tent as I didn't have enough fabric. Can anyone advise me on what variables to input to the catenary curve spreadsheet?

I have no idea how much deflection I need!

In friendship

Tristana

jerry adams
(retiredjerry) - MLife

Locale: Oregon and Washington
Re: Catenary curve help? on 05/22/2012 08:05:21 MDT Print View

What is the distance of your ridge line?

Are you using silnylon?

For silnylon, typical distance like 8 feet, probably 2.5 inches of deflection is about right.

Just curious, what do you mean "I recently bought the tutorial for the pyramid tent"

Sean Rhoades
(kingpin)

Locale: WV
Re: Re: Catenary curve help? on 05/22/2012 23:23:09 MDT Print View

He's not a member, so in order to view certain articles you must either buy a membership or the particular article you want.

For the caternary curve, I wouldn't go more than 3 inches deflection. I made a 9ft tarp with 3in of deflection, it was too much I wish I would've used only 2in. My advice is to put a few different deflections into the spreadsheet and play with the numbers until you come up with what you like.

Tristana Rodriguez
(Tristana) - F
Had a go on 05/24/2012 03:14:43 MDT Print View

Hi

Thanks both

I think I did okay but I did find it hard to keep the curve once I flat felled the seam. I also didn't have as much fabric as the tutorial said so I had to tweak the pattern. I'm just hoping it's big enough to lie down in. I'm going to try the tent this weekend so will keep you posted.

I'm a girl by the way!

T

jerry adams
(retiredjerry) - MLife

Locale: Oregon and Washington
Re: Had a go on 05/24/2012 07:43:11 MDT Print View

Post some pictures

Tristana Rodriguez
(Tristana) - F
Photos on 06/04/2012 10:28:24 MDT Print View

Hi Jerry & Co

Here's what I ended up with:In the evening, pitched by attaching the apex to paracord between two fence postsAnd after two nights - second night involved torrential rain for an hour or two, and V strong winds

I couldn't make the tent as large as I would like as I made it out of offcuts. Therefore I can't use it with a central pole as I have to sleep diagonally. That said, I'm pleased with its performance so am going to make do with it for now, and since I know it holds up, I'm going to add some more details, like a few elastic cords to help with the tension, and some toggles to pin back the entrance.

jerry adams
(retiredjerry) - MLife

Locale: Oregon and Washington
Re: Photos on 06/04/2012 11:46:23 MDT Print View

I like the multi-colors : )

Looks good - the curves are smooth - no huge wrinkles

Tristana Rodriguez
(Tristana) - F
Balloon tent on 06/07/2012 05:54:35 MDT Print View

Thanks Gerry

I didn't get any say in the colours - the fbric was free offcuts from a the hot air balloon factory!