Cuben shelter design.

Discussion in 'DIY & MYOG' started by Enzo, May 22, 2020.

  1. Enzo

    Enzo Thru Hiker

    I'm thinking of changing the design of some of the tie outs that aren't at risk of abrasion.
    D ring on a length of 1.5oz cuben, bonded on either side of panel with reinforcement bonded over the top so that both surfaces of the panel and tie out are held.
    cathyjc likes this.
  2. Rog Tallbloke

    Rog Tallbloke Thru Hiker

    Well exactly. I'm extremely impressed with the load bearing capacity of bonded seams in shear. But I'm not about to subject my nice piece of 0.51 DCF to big peel forces, because @cathyjc has already shown us the result of that.
    cathyjc likes this.
  3. Enzo

    Enzo Thru Hiker

    I found where rsbtr were hiding their reduced 0.51, so 0.51 it is.
    Ordered a bit extra to finish v1 which will hopefully become available cheap cheap if anyone wants a v light shelter. Also bought enough 1.5oz cuben to make another pack or three, will probably make a couple of spares if anyone fancies a pack like
    IMG_20180908_185904.jpg IMG_20180908_190038.jpg with a few improvements and more monochrome colour scheme! Should be sub 350g with frame. They are designed to work for what I do, upto half a dozen long weekend/100 mile trails a year on established trails, they'll last several years with that kind of use, but not for the pct//Arctic/bushwhacking :)
  4. Nevis

    Nevis Section Hiker

    Looks tasty :) i’d be interested in your shelter and one of your packs if they are going? i do like testing new stuff and i’m in need of a super light shelter :thumbsup:
    Enzo likes this.
  5. Clare

    Clare Thru Hiker

    I'm just making a very small modification to my notch li so I don't really belong in this thread, forgive me my trespass.

    BUT I'm going to add some perimeter tie outs for which @Enzo has very kindly given me some suitable weight cuben scraps. A few days ago I saw his suggestion of using D rings which also seems good. I would like to use 12mm D rings but can only find 4 on ebay, I could look harder but read on. I had planned to use 2 tie-outs per panel of the tent, so 8 in total, but now I'm thinking that 1 tie out per panel should suffice (and happily equals the number of available D rings). The panel length from pitchloc to vestibule tie out is 154cm. Do you think 1 perimeter tie out per panel is too much stress? After all, it doesn't take much stress, it's just to stop the bottom edge flapping around and catching wind in high wind. Yet two seems to be the correct number. The sil Notch has two per panel as I remember.
  6. WilliamC

    WilliamC Thru Hiker

    I can't answer your question, but if you need more than 4, @paul does the stick on lineloc3s. They're very good.
    Clare, FOX160 and Chiseller like this.
  7. Mole

    Mole Thru Hiker

    I'd go for one per panel as per sil, otherwise it could make evening up the pitch laborious.

    I don't see the need for D rings. Just grosgrain and bungee loops are adequate I think.
    D rings unless fixed well, often rotate to the wrong orientation. Tarptent gave up on them too on the strat, for that reason and now use circular rings.
    cathyjc and Clare like this.
  8. Clare

    Clare Thru Hiker

    I think the sil is 2 per panel but the laboriousness point still stands. ok will abandon D rings.
    Mole and cathyjc like this.
  9. FOX160

    FOX160 Thru Hiker

    Deleted post.
  10. Enzo

    Enzo Thru Hiker

    Clare, if you would still like to go with d rings, I use the ones henge hammocks sell on eBay. I use them rather than grosgrain on cuben because I'd prefer to bond than sew onto 0.51oz that rules out grosgrain, and if you use cuben tieout I think a d ring is a sensible precaution against abrasion. YMMV.
    Mole and Clare like this.
  11. Mole

    Mole Thru Hiker

    Ok. My sil Notch just has one each panel (4 extra pegs if all used).

    That makes sense. I didn't consider the cuben aspect. Looks like there is grosgrain on the Notch Li pitchlok tiepoints, but only sewn into seams. Trying to go into a simple edge (with grosgrain) might be inadvisable.

    Also the Beastee 'D' rings from Henge are a different design to the old simple D rings Tarptent used. Beastee, though D shaped perimeter have actually more ring shaped holes, so no corners inside to pull D ring to wrong position.
    Last edited: Jul 23, 2020
    WilliamC likes this.
  12. Clare

    Clare Thru Hiker

    Well that's a very superior sort of D ring, my goodness. I've ordered some. I will attach with 12mm cuben strips and then an overpatch for strength and to look real pro.
    Enzo and Mole like this.
  13. Mole

    Mole Thru Hiker

    FOX160, Charles42 and Clare like this.
  14. Charles42

    Charles42 Trail Blazer

    Thanks Mole . Been following with interest . They look the better solution . I'm thinking of getting the new Notch Li , and will order
    some .
    Clare and Mole like this.
  15. WilliamC

    WilliamC Thru Hiker

    Any particular reason that you prefer them to @paul's stick on linelocs that I linked to above? I like the circular cut of the Treadlight ones, and It looks as if you could use them as semi-circles on both sides of the fly.
    Mole likes this.
  16. Mole

    Mole Thru Hiker

    I'd not looked at those because I'd assumed they were midpanel tieouts really, and also, for the Notch perimeter, IMO linelocs are unnecessary/OTT . It just needs simple shock cord loops like used on a lot of tents.

    But they do look useable folded like you describe, and could snip the Linelocs off.

    Edit: afterthought- if I was using the ones I linked to, I'd think I'd stick them on the inside of the shelter hem, to preserve the smooth look of the cuben walls.
    Last edited: Jul 26, 2020
    WilliamC likes this.
  17. Enzo

    Enzo Thru Hiker

    given a choice I'd go with half round reinforcement, though triangles are a better use of expensive materials.
  18. Clare

    Clare Thru Hiker

    With thanks to all for evolving thoughts on perimeter tie out fabrication. I now present cuben 2.92 circles folded over edge with gg tabs sewed on and glued with seam grip wp.

    The cuben is probably a bit ott for the application and I could have used the lighter stuff that enzo gave me. In fact I wish I had. Is there any way to ‘melt’ the seam grip off if I want to change it later? Xylene?

    9201E596-A1C6-4E66-A428-F5328D132004.jpeg 6B74A628-FDE8-4845-8F92-A888F731DD5D.jpeg
    Last edited: Jul 31, 2020
  19. Whiteburn

    Whiteburn Thru Hiker

    IMO anything that 'melts' Seamgrip is likely to damage the DFC is they're very similar compounds.
  20. Enzo

    Enzo Thru Hiker

    They look good Clare, agree with Whiteburn, hybrid having DCF on the back I don't think you could melt the glue through that layer.
  21. Clare

    Clare Thru Hiker

    But I regret those grey patches now :photogenic: and want to take them off! Waaa! Will try putting xylene on a scrap and see what happens
  22. Enzo

    Enzo Thru Hiker

    'spose you could work from the edge and progressively ease them off. You could also try nail polish remover/acetone, dunno if it's much better than a lung full of xylene...
  23. Enzo

    Enzo Thru Hiker

    Keep looking at my 7.5 yds of 0.51.
    To make the most of it I'm tempted to use a bit of it to get v1 working better and add 2 more meters and make a 2.7m square 1.5m high mid. Along the lines of an ultamid 4. I wouldn't choose to use 0.51 to make such a big shelter, but it's what I have.
  24. Rog Tallbloke

    Rog Tallbloke Thru Hiker

    On my calculator you'd need 8.66 yards for the ultamid copy.
  25. Enzo

    Enzo Thru Hiker

    I made it a smidge over 8m :)
    Is it worth doing in 0.51 for a lowland shelter?
    Opinions?
    I'd much prefer in 0.8 and have it as a winter palace.
    Ultamid 2 might be doable with what I have, and less overlap with my knot shelter, but less efficient with cuben.

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