DCF Shelter Construction

Discussion in 'DIY & MYOG' started by Enzo, May 7, 2020.

  1. Enzo

    Enzo Thru Hiker

    Posts have been moved into here to save cluttering up the Shelter News thread - Shewie



    Tempting to myog one. As with all zpacks early stuff, mega efficient use of cuben.
    But it's still 4+ meters £160...
    Though you could make it a bit longer, I think velasco is like 5'7 or something.
    Last edited by a moderator: May 12, 2020
    cathyjc likes this.
  2. Rog Tallbloke

    Rog Tallbloke Thru Hiker

    Problem with this transverse sleeping axis design is, if you go longer you also need to go taller otherwise the angle gets shallower and there's no benefit, Once you do that, the unsupported area of cloth gets a lot bigger, requiring more/heavier stakes and more/beefier tieout reinforcements.
    Enzo likes this.
  3. Mole

    Mole Thru Hiker

    Or corner poles/pitchlok struts like Tarptent or Nordisk use.
  4. Enzo

    Enzo Thru Hiker

    Best just to be shorter then!
    JimH, oreocereus and Padstowe like this.
  5. Cranston

    Cranston Thru Hiker

  6. Rog Tallbloke

    Rog Tallbloke Thru Hiker

    Or use a tent where you sleep lengthways under the ridge and you can have your head under the highest point when laid down. I find this works best for me. Each to their own though. I can see the attraction of the z-packs/tramplite style for shorties.
  7. Chiseller

    Chiseller Thru Hiker


    Can't agree with that :frown:
  8. Rog Tallbloke

    Rog Tallbloke Thru Hiker

    Fizzics innit.
    oreocereus likes this.
  9. Chiseller

    Chiseller Thru Hiker

    It's only the heavier stakes & beefier tieouys...
    Ive endured many a night and the same pegs have held and the additional guys haven't been any beefier :writing:
  10. Rog Tallbloke

    Rog Tallbloke Thru Hiker

    Well if the same stakes didn't fail with the bigger shelter you could have used lighter ones with the smaller shelter.

    Logic innit?
  11. Chiseller

    Chiseller Thru Hiker

    View attachment 22937

    View attachment 22938 [/QUOTE]

    Bit of misunderstanding?
    I've managed without needing heavy stakes or beefier guy outs...
    Experience.... Innit :couchpotato:
    Padstowe likes this.
  12. Rog Tallbloke

    Rog Tallbloke Thru Hiker

    Yes, a bit of a misunderstanding. I didn't say beefier tieouts, I said beefier tieout reinforcements.
  13. Chiseller

    Chiseller Thru Hiker

    And I highlighted it... In the original query.. Just didn't add reinforment to my reply...
    Time for bed... I'm too old for tiddlywinks :whistling:
    edh likes this.
  14. Rog Tallbloke

    Rog Tallbloke Thru Hiker

    Sleep well. It's just me trying to get my head round DCF construction, and bothering about material weights etc.
  15. Enzo

    Enzo Thru Hiker

    The knot minimid is another solution, but needs an extra peg, no free lunch.

    I think with cuben it's worth taking advantage of its zero stretch, no need for cat cuts. But that means PRECISION fabrication.

    The zpacks shelters seem compromised but they use fabric very well imho.
    Would you sew and tape or just tape?
  16. Rog Tallbloke

    Rog Tallbloke Thru Hiker

    Just tape, but 1" not 1/2" as it's a hex3 sized tent. And zigzag the tieout loops onto the triple folded main panel hems as well as bonding them to the main panels under the reinforcements.
    Last edited: May 7, 2020
    PhilHo likes this.
  17. PhilHo

    PhilHo Thru Hiker

    I'll be interested to see that.
  18. Rog Tallbloke

    Rog Tallbloke Thru Hiker

    Last edited: May 8, 2020
  19. Enzo

    Enzo Thru Hiker

    My duplex copy is just taped with 1" super expensive 3m tape.
    If you think about it it's no heavier as if you sewed it your have to tape over with Mother layer of cuben anyhow.
    For ultimate strength I'd do what tramplite does, roll sew and tape over.
    My tie out reinforcements were 1.5oz on a 0.51oz shelter as I had it, but doing it again I'd get a half yard of 0.7, think it's 0.8 now for the reinforcements and make sure the dyneema is oriented correctly.
  20. Rog Tallbloke

    Rog Tallbloke Thru Hiker

    I have 8 yards of older 0.73oz Cuben (CT2K08) I'm using for this. Seeing videos of various tests it appears failure usually occurs in the main panel adjacent to the reinforcement. I think two different sized layers of 0.5oz reinforcement will create a more gradual transition in stress loads from tieout loop to main panel. There will be 13 pegging points round the perimeter of the tent, and a shallow transition angle between panels, so maybe that's overkill. Problem is, it's guesswork, so I tend to overestimate requirements in the face of uncertainty.
    Last edited: May 8, 2020
  21. Enzo

    Enzo Thru Hiker

    I've found that whatever you use to bond it, be it glue or worse tape, is really heavy relative to the cuben.
    Have you seen 0.7 tear? I think all the damage I've see .on line was 0.5, buy I guess with big enough panels and high enough wind it'll happen.
    cathyjc likes this.
  22. WilliamC

    WilliamC Thru Hiker

    @gixer has.
    JKM, Tartanferret and gixer like this.
  23. Rog Tallbloke

    Rog Tallbloke Thru Hiker

    @WilliamC My take on this is that if you don't want the wind to tear a corner off your cuben tent, then design a cuben tent that doesn't have corners. Or at least, not sharp, 90 degree corners.
    WilliamC and Enzo like this.
  24. Enzo

    Enzo Thru Hiker

    Was his duplex s 0.7? Didn't know that.
    I have a feeling zpacks replaced it with a 1oz version. Odd as it has no more dyneema in so presumably not significantly stronger?

    When I made my copy I made sure it could be pitched to the deck, I'm sure the stock one being so airy can't help, on top of the big flat panels.
  25. Enzo

    Enzo Thru Hiker

    This locus gear looks nice, especially in a snowy winter camp. No need for cat cuts so nowhere for snow to pile up till it builds up.

    10219450984_b1a6dbb5da_b.jpg No 90 degree angles, or are they less than 90, depends on if your looking per panel .
    I'll let the engineer decide!

    Don't know why they didn't sew the vent into the seams and make it s descent size though.
    Dave V, Robert P, gixer and 2 others like this.

Share This Page