BWCA Pyramid tent done! Boundary Waters Group Forum: Do It Yourself Gear
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PortageKeeper
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04/26/2015 04:16PM  
Well, it's almost completely done.
I went into this with confidence, along the way I nearly tore it up and set it on fire (twice), I decided it would be better to finish it and then decide if I should burn it, and in the end I chose to keep it.
I wanted a light weight (not ultralight) pyramid style shelter that I could heat, stand up in, and sit in it while the stove is warming my back side while I stare through the open doors at the lake. It could be cold and rainy, but I would be snug, dry and warm. I've done a lot of cold, wet trips and whether I am getting lazier or smarter I don't know but I love that time of year and I want to keep doing it.
While sewing this shelter I made two major screw-ups. At first I had cut four of the panels too small. I found that I could down size the shelter by six inches one direction and it would still be large enough. Then I sewed the back wall on as a side panel and didn't notice until I was mostly done (the second time that I was ready to burn it). I decided to plow through this mistake. I cut it apart and put it together correctly. One may think that this mistake should easily have been avoided, but when your work table is too small and your tent panels are BIG and EVERYWHERE, it's easier than you'd think.
Anyway...
Obviously on a pyramid shelter the rain will come in when the door is open, so I made a fly to keep some of the rain out. In the photo the fly is anchored to the ground. I expect there will often be times when I can raise the end of the fly by tying to a tree. Otherwise, this works for me.
The finished dimensions are 9'4" W, 8'8" D, 8'0" Tall.



















I made friction clips that will adjust up or down the pole for hanging/drying things.







The tent and fly weigh 5, 14.
The ground sheets weigh 18 oz.
The stakes weigh 9.2 oz.
The pole weighs 1, 3.8.
The stove, stove pipe etc. weighs 8, 14.5.
The total comes to 17, 11.5.
This comes to less than 9 lbs. each on a two person trip. Not ultra-light, but way less than a canvas shelter with a steel stove.
The pole will be tied into the canoe, the stove will pack in my ruck sack and the remainder takes up about the same space as a three person shelter in the other persons pack.
 
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WindChill
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04/26/2015 05:42PM  
Very nice. What are the measurements at the ground?
 
04/26/2015 07:45PM  
That is a slick set up with the fly. Well done.
 
PortageKeeper
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04/26/2015 09:09PM  
quote WindChill: "Very nice. What are the measurements at the ground?"

9'4" W, 8'8" D, 8'0" Tall.
 
labman
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04/27/2015 08:37AM  
NICE!
 
04/27/2015 08:49AM  
That's just beautiful. Well done. Is that a piece of Cordura at the top? Is there a grommet on the inside top for the pole or no?
 
PortageKeeper
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04/27/2015 09:24AM  
quote Jaywalker: "That's just beautiful. Well done. Is that a piece of Cordura at the top? Is there a grommet on the inside top for the pole or no? "

Yes, that is a cordura cap. I couldn't figure out a way to make the top to withstand the pressure of the pole tip so I started by cutting the wall panels short of the top. I then made a 'spider' by sewing two pieces of 1" webbing in a cross and then re-enforced it with a piece of hypalon. I put a 1/2" spur grommet in the center of that which the pole tip goes through. The legs of the spider are sewn down towards the four corners. The cap just velcros on after that with no pressure on it.
 
redoleary
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04/27/2015 08:36PM  
That is VERY COOL!! Nice job.
 
wingnut
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04/28/2015 06:39AM  
Nice job on the tent, What did you use for the material to keep the weight down.
 
PortageKeeper
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04/28/2015 06:45AM  
quote wingnut: "Nice job on the tent, What did you use for the material to keep the weight down."

Thanks.
I used 1.9 oz silnylon for the tent and 1.1 oz for the fly.
 
Grandma L
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05/03/2015 04:38PM  
Wow, great tent!
 
1BigPaddle
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06/11/2015 01:14PM  
very cool
 
06/11/2015 06:42PM  
I'm eager to hear how the first field test goes. How does it do in strong wind or rains? Anything you would change or do differently, PortageKeeper?
 
06/11/2015 06:42PM  
Oops, double post deleted.
 
PortageKeeper
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09/21/2015 12:36PM  
quote Jaywalker: "I'm eager to hear how the first field test goes. How does it do in strong wind or rains? Anything you would change or do differently, PortageKeeper? "

I used this tent recently on a Quetico trip with good results.
Things that I learned, or already knew would happen...
Obviously one needs to find a good tent pad that is level, large enough and have good drainage. We did find pads like this, though sometimes the Canadian Shield forced us to use large rocks at corners to hold the tent in place. One site that was about perfect had loose top soil that after rain did start letting the tent pegs loosen up.
With good anchoring the wind was not much of a problem, although I may add more guy-out points to stiffen it up. The fly doesn't do so well even though it is small. The wind likes to flap it around a lot. This though was mostly because I didn't turn the back of the tent to the weather... because we wanted the view.
Water... At one point, after a driving rain, we had a large puddle at the door entrance, even though we picked a good pad. This quickly subsided once the rain stopped and wasn't much of an issue.
Heat... We had both hot weather days and cold weather days. When it was cold, having the heat was a very welcome thing, especially when we were both damp and cold with not a lot else that we could do about it. Sitting inside in our chairs with the stove going while playing cribbage while the outside was wet and chilly was the best!
Condensation...
There was condensation most every day, whether it be from us or from the wet ground that we placed the tent over. Other than a light spray on our sleeping bags or clothes once in a while it was easy to deal with.
Was it worth it?
Well, we did expect more cold weather than we actually ended up getting, so carrying the extra weight did have me wondering. All in all it was worth bringing the tent and stove, and certainly would be worth it had the weather been worse.
 
OldFingers57
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09/21/2015 03:13PM  
Are you planning on using this for winter camping too?
 
PortageKeeper
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09/21/2015 03:36PM  
quote OldFingers57: "Are you planning on using this for winter camping too? "

I would like to try it in the winter. Maybe I'll plan a two night winter trip to test and see what it will do. I have a bigger stove that I would use then. Any tent is cold once the fire goes out and the bigger stove would help there.
 
OldFingers57
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09/21/2015 03:59PM  
quote PortageKeeper: "
quote OldFingers57: "Are you planning on using this for winter camping too? "

I would like to try it in the winter. Maybe I'll plan a two night winter trip to test and see what it will do. I have a bigger stove that I would use then. Any tent is cold once the fire goes out and the bigger stove would help there."


I know most that hot tent do not run their stove all night but rely on a good warm sleeping system (Below 0 bag and insulated pad or two)
 
01/06/2016 03:19PM  
This looks amazing. Its on my to do list to make a hot tent in time for next winter. Have you had a chance to try this out in the winter yet? What do folks to do to vent hot tents and avoid the condensation? Do you think the 2.2 oz HEX70 XL ripstop nylon from ripstop by the roll would be a decent material for a project like this or would you recommend using something lighter?
 
PortageKeeper
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01/06/2016 03:31PM  
quote VaderStrom: "This looks amazing. Its on my to do list to make a hot tent in time for next winter. Have you had a chance to try this out in the winter yet? What do folks to do to vent hot tents and avoid the condensation? Do you think the 2.2 oz HEX70 XL ripstop nylon from ripstop by the roll would be a decent material for a project like this or would you recommend using something lighter?"

Thanks
This shelter was made for spring or fall trips. I never intended using it in winter. It would certainly be much better than cold camping, but this stove is a little small for full on winter.
I don't have any experience with the fabric you speak of but this pyramid shelter is silnylon 2.3 oz/yd after coating so it would appear they weigh the same. For a winter shelter I guess that I'd have to go with the heavier mat'l and not the 1.1 - 1.6 ounce. I would just feel more confident with it.
Condensation can certainly be an issue. I put a vent in the peak of this shelter and counted on the stove to draw the moisture out. It helped a lot but there was still moisture near the ground. Also, moisture builds quickly if the stove is not going at all.
 
01/07/2016 08:06AM  
Thanks PK.

The vent at the top is a great idea and makes sense.

When dealing with winter tent fabrics, what would be the most ideal weight while still providing the needed amount of insulation? I know a lot are made of cotton with a couple different finish types. I had thought 330D cordura (5.8 oz) or something similar, but when I saw your tent I started exploring the lighter materials. It's good to know this isn't a tent that was intended for deep winter. I was getting my hopes up about a sub 10 pound 2 person winter hot tent.

After having it set up a few times, are you happy with the pyramid shape? I'm going between a cone/pyramid or traditional rectangle/square with a ridge.
 
Grandma L
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01/07/2016 11:17AM  
You make the best "stuff"! it would be fun to get together for a "sewing bee" and share ideas and projects in person. I would really like to check out your tent and stove.
 
PortageKeeper
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01/07/2016 04:55PM  
quote VaderStrom: "Thanks PK.


The vent at the top is a great idea and makes sense.


When dealing with winter tent fabrics, what would be the most ideal weight while still providing the needed amount of insulation? I know a lot are made of cotton with a couple different finish types. I had thought 330D cordura (5.8 oz) or something similar, but when I saw your tent I started exploring the lighter materials. It's good to know this isn't a tent that was intended for deep winter. I was getting my hopes up about a sub 10 pound 2 person winter hot tent.


After having it set up a few times, are you happy with the pyramid shape? I'm going between a cone/pyramid or traditional rectangle/square with a ridge."

If you are talking about a single walled shelter, imo there really isn't much difference going from one fabric to another... it's still just one thin (non-insulated) layer between you and the elements. The thing that makes the most difference is adding another wall. Dead air space between the inner and outer walls makes a big difference. If I were wanting to make a very lightweight winter shelter that would be easy to heat I would go with lighter ripstop nylon and have inner and outer walls. This would be pretty easy with a pyramid style because the outer layer could clip on just below the vent and be held down with guy lines. I could do this with my shelter quite easily. I'd have to have a second stove boot on the outer layer but better safe than sorry.
All this being said, it'd be better yet to have a breathable inner layer and make it so the outer layer is weatherproof.
I was happy with the pyramid design but one needs to remember that a single pole design does limit headroom. I decided that if I make another it will be 7' tall, not 8'.
 
PortageKeeper
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01/07/2016 05:24PM  
quote Grandma L: "You make the best "stuff"! it would be fun to get together for a "sewing bee" and share ideas and projects in person. I would really like to check out your tent and stove."

Thanks GL!
Sometimes my sewing leaves something to be desired and I get frustrated but I just remind my self that the only two things that I really expect for an outcome is that it holds together and holds out the weather. So far I am accomplishing that. I was really disappointed with myself on my latest shelter when two seams didn't line up at the door. The reason it was a big deal to me is because there were two different colors involved and that made it stand out all the more. A rooky mistake that I tried to avoid but it's easy to get mixed up when working with big pieces of fabric.
Pic's...

 
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