Making a Cone using Captain Paranoias Cone Potstand Tool on Zenstoves.net - busting the myth?

Discussion in 'DIY & MYOG' started by Mole, Jan 30, 2016.

  1. rorymax

    rorymax Section Hiker

    I very much am.
    edh and Gadget like this.
  2. stormin'

    stormin' Section Hiker

    I am making cones for my own means, not for the potential competition.
  3. rorymax

    rorymax Section Hiker

    I understand, nothing more despicable than somebody stealing someone else's ideas for their own material gain.

    rorymax
  4. captain paranoia

    captain paranoia Summit Camper

    I hope that it does not include any of my code.
  5. Padstowe

    Padstowe Thru Hiker

    You know it must have been about 7yrs ago that I got the script for the clone with fissure off CP, still cone less :(. Between looking for a gaff to no computer to not sourcing materials to general laziness i've always put it off.
    So this time am motivated & want to get it done, so to that end can anybody tell me the thickness of ti I'd be looking for & a place to source it?
    I was thinking about using alu foil, but i do cook from scratch with alcohol & was wondering how that would stand up to the job?
    Cheers for any help that can be given
  6. edh

    edh Thru Hiker

    Head over to the Materials Suppliers thread...
    Padstowe likes this.
  7. edh

    edh Thru Hiker

    And if even I can do it...
    rps20170323_083156_299.jpg
    Mole, Meadows, Padstowe and 1 other person like this.
  8. Graham

    Graham Thru Hiker

    ^ On paper :p
    edh likes this.
  9. Padstowe

    Padstowe Thru Hiker

    Cheers was just there, clicked the link for the alu flashing, but no postage to ireland :(
  10. cathyjc

    cathyjc Thru Hiker

    I'd highly recomend Ti foil even tho' it's ££'s more. Maybe experiment with Alu and graduate to Ti when you've "caught the bug" :D I've just added an update to the other thread re. suitable Ti foil.
    Padstowe likes this.
  11. Gadget

    Gadget Thru Hiker

    I have just placed an order for the 0.0078" (0.2mm) aluminium flashing.
    PM me if you would like a chunk, it's the 12" x 10 foot size.
  12. Padstowe

    Padstowe Thru Hiker

    @Gadget, Seen that on the other thread there. Got some ti foil there now but am very tempted, just wondering how much postage on to ireland would add onto it, could be close to as much again depending.
  13. captain paranoia

    captain paranoia Summit Camper

    Certainly a good idea to perfect the design using cheaper aluminium foil before committing the design to Ti.
    Padstowe likes this.
  14. captain paranoia

    captain paranoia Summit Camper



    04/10/2010

    ;-)
    Padstowe likes this.
  15. Padstowe

    Padstowe Thru Hiker

    yeah it's running through me head the last hour, there's not much in the ti in a metre roll for mistake, might get some flashing aswell.

    :D (good job am not that paranoid)
    edh likes this.
  16. Gadget

    Gadget Thru Hiker

    Curious.
    Just did the sums comparing the 0.1mm Ti with the 0.2mm Al. The thicker aluminium works out lighter.
    Is the thinner titanium tougher... or just more fashionable?
    Scotty Von Porkchop, edh and Graham like this.
  17. Scotty Von Porkchop

    Scotty Von Porkchop Ultralighter

    I'm wondering the same. Though you can use wood and not have it melt with titanium though I'm not sure if that's actually viable in such a small form factor
  18. Whiteburn

    Whiteburn Thru Hiker

    Ti has a higher youngs modulus, yeild stress, better fatigue resistance & retains its strength at higher temperatures.
    In theory a Ti cone will withstand the repeated rolling & unrolling a lot better than Ali.
    My head sums would put a 0.1mm Ti cone about 20% lighter than a 0.2mm Ali but we're only talking a few grams.
  19. Padstowe

    Padstowe Thru Hiker

    I would have thought the ti would be stronger, withstand longer?
    Which has the better pack size? I reckon with a fissure you'd have more space in the pot with the ti, might be minimal though am only guessing.
    (oh, just seen the above)
  20. Gadget

    Gadget Thru Hiker

    Al thickness = 0.0078" ≡ 0.19812mm
    SG of Al = 2.72
    Ti thickness = 0.12mm
    SG of Ti = 4.50
    so, for the Aluminium, 0.19812 × 2.72 = 0.5388864
    and for the Cooltanium, 0.12 × 4.5 = 0.54
    ∴ for those thicknesses Aluminium is 0.2% lighter.
    So a 40g cone in the Cooltanium, would be 39.9g in the Aluminium (and about ¼ the price).
    If I had more disposable income I would be one of the Ti-coolkids too... jealousy is such an ugly emotion.
    (Though, if you are a proper grammar nerd, that's envy, not jealousy)
  21. JKM

    JKM Thru Hiker

    :greedy: :alien: :greedy: :alien:
    Fixed that for you.
    Gadget likes this.
  22. paul

    paul Thru Hiker

    i made a direct clone of the fkeg caldera cone from 0.005" grade 5 ti and weight was 1g lighter than the ali.
  23. Whiteburn

    Whiteburn Thru Hiker

    Weight ratio Ali to Ti = Thickness ratio * SG ratio (2.7/ 4.5)
    For 0.2mm Ali & 0.1mm Ti = (0.2/ 0.1) * (2.7/ 4.5) = 120%
    For 0.198mm Ali & 0.12mm Ti = 99%

    Those wanting longevity & perhaps the ability to stick it on a wood fire should think about Ti & those concerned with cost Ali.
  24. cathyjc

    cathyjc Thru Hiker

    I've used Ti and Alu for cones……….own I make Ti cones for my use, and Alu cones for the kids to treat with the disregard that teens have ;):D.
  25. edh

    edh Thru Hiker

    Do I remember you saying you'd make a ti one for me :angelic: ?

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