Discussion in 'DIY & MYOG' started by gamemaster84, May 19, 2020.
@WilliamC don't suppose you remember how wide it was at the ends? And how high?
Have you done any of the PCT?
There is a tad of variety in 2,600 miles..
I don't, but this link from another thread might help: https://web.archive.org/web/20131207051607/http://www.zpacks.com/shelter/hexamid_long.shtml
Just to clarify I didn't make that tarp Ivo van Montfoort did
I wish I had such skills haha.
@edh No I haven't. I went to an entertaining talk with zillions of photos by someone who had though. Maybe the Appalachian trail would be a better exemplar for majority forest walking?
Hexamid long specs:
Peak Height: 51 inches (130 cm)
Height at the head and foot: 19 inches (48 cm)
Length: 9 feet (2.75 meters)
Width at center: 62 inches (158 cm)
Width at ends: 42 inches (107 cm)
Entryway Height: 29 inches (74 cm)
Some more food for thought with another build here:
I'm running through a few ideas, trying to maximize fabric.
One idea is a half width duplex, cut 2m of cuben down the middle gets you 4m of 66 ISH cm wide head and tail on a 3m long shelter, 125cm high. 10cm narrower than my tramp and the other 2m cut diagonally would probably do one side for doors, lots of vesterbual space but probably too narrow.
Might mock it up, very easy build and being narrower than a duplex should be better in wind.
A little sketching shows at my hight 1m width at head and foot locations, so not so bad.
Could you share the sketch? I'm having a bit difficulty visualizing it
I don't have any experience with cuben. Is it hard to work with? Or do you know a good resource on how to work with it? I would like to try it but don't want to waste a lot of money on a failed project..
I came across this design on a german forum. Looks like a efficient use of fabric
On the tramplite he has seams on all panels, would that make it stronger in high winds?
I'll just tape this project, imagine working with paper. Much easier than silnylon.
The sketch shows 50cm and 70cm vestibules.
At 1m from the centre it'd be 1m wide and at 115cm seam to peak on the deck 40cm hight minimum. Pretty tight even for me.
With ~67cm wide top not sure how I'd have the poles arranged, seams awful tight.
It's not the design I'd go for zero compromise, it's designed to maximise the 1.37cm wide DCF, uses 6 meters. About 140g of fabric in 0.5 Oz DCF if I went for one set of doors and duplex door closure I reckon I could do it for not much more than 200-250g if I was careful.
Anyhow it's an idea to play with, efficient with fabric/cost and easy to make.
something like this is it?
The one in the back is a tramplite (without beak)
I feel that it's easier to get a nice tight pitch with seams. With tie outs at panels without seems, the change of plane always seems a bit more rounded and less taut.
However, with a non-stretch fabric like cuben, a not having a seam might be more flexible and suffer less from wind hammer.
The flat top panel in my sketch is 67cm wide, not 1m, but a 2m tall person lying centrally length wise will have 1m width at head and foot due to the vestibules.
67cm width I think is too narrow, but it allows me to get the 4m length the roof needs from 2m of cuben.
I'd like a single apex roof, but as Rog says that would make the door panel very long and is less efficient and more complicated use of cuben's narrow fabric.
I'd like a symmetrical shelter too, and single apex that means 'A' frame or pole thru your gut , or better a 2p shelter with pole between you.
A small 2p shelter like @WilliamC design or hmg dirigo would be nice for one. I'll have to see if I can make one work with 6m of cuben.
I just ordered another couple of meters, rsbtr won't ammend orders so another $15 postage and £7 handling fee on top of the fabric cost...
Yes. I'm testing tapes and materials with seams across the line of pull at the moment, before I commit to cutting my 8 yards (7.3m) of cuben on my Golite Hex3 sized pattern. It's efficient, but a bit experimental on a tent that big. I'm using 1" tape to be surer. You can see the main seam in pencil arcing round the back of the model. It's just the straight edges of the DCF on the cutting plan. The line from the middle of the back panel hem polewards to the main seam will be zipped. Total seam length of main body 12'6". Another 6' to finish the doors with. 60" hem edges, 5'6" high. 10 feet across corners. 65 square feet of shelter.
Be interested in any results of your testing. I've only got Paul's venture tape left, ran out of the £50 a roll 3m stuff.
Think the venture is meant to be strong enough.
I'll get some seam grip for the reinforcements.
Your design looks like a lot less work than making up all those triangles and bonding.
I think it's very tempting to go hd on the tie outs and reinforcements and negate the weight saving of the expensive cuben. Worth thinking about as your doing.
My duplex and tramplite are ~340g so this project needs to be appreciably lighter, and between the two space wise.
downloaded and had a little play On SketchUp. Tried with roof parallel and with the panel cut to give 10cm more at the head and foot and less at the apex.
I don't like the vestibules being different angles but want the rear one able to be pinned to the deck.
Might be able to get around that by adding some material to the apex edge to lengthen that panel. Probably put a vent in that panel too. Front vestibule tip is 8" off the deck.
I had a little play on sketchup today too
I was thinking on adding a pull out on where the beak end (on the side facing us) and then create a zipper less "door" by or making 2 overlapping panels that close up like zpacks does or create a pulley that retract the beak all the way to the pull out. Maybe using a cyberian cord lock that runs on a dyneema cord. And have 2 cords that connect to the ribbon part of the lock to open it or close it, by running one end trough the peg and anther towards the trekking pole. I'm goint try to prototype that. I don't know how te explain this idea better sorry...
And I'm thinking of making it single walled by adding a bathtub floor of about 15cm that connects to the sides with noseeum mesh. And have the door panel connect with seams of the side panel if that makes sense...
I don't think I'll be using cuben, as I backpack just a few days a year. The Netherlands isn't really a wild camping country so I have to fly to the uk.
What do you think of this design?
How much fabric do you think you'll use in this?
I really like the idea of making your design single skin, saves weight and hassle setting up.
6 meters should do it.
Have played about a bit more, think this one should be do able with 6 Linear meters too
and area at head/foot for 2m person would be 1m wide by 48cm with it pinned to the deck.
Not convinced the triangles at the ends and the associated complexity/extra 2 pegs are worth the ~80mm extra headroom
I like you're design. The extra complexity of the head room may be difficult for a small bonus area. But you have more experience with cuben then me. With 3m length when nailed to the floor should be enough not sure about the width tough.
I think I'll make a tyvek/polycro (whatever is cheapest ) model first.
If someone has experience in making a SW tent I would love to hear how the "inner" should be sewn in.
I have tyvek available at mates rates for anyone wanting to prototype. Drop me a DM if you need any.
I like your rain kilt.
I'll get me coat...
Far too sensible, I'll hack straight into my kidneys worth of DCF
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