Just that a 4x8 solid piece will be stronger than two triangles.
On Saturday, September 9, 2017 at 10:41:48 AM UTC-7, lemondealc wrote: > > It's only a really small section so Id think the flat roof is fine. What > is the reason for having the pics coplaner? Easier to assemble? > > On Saturday, September 9, 2017, Bob Hearn <[email protected] <javascript:>> > wrote: > >> It occurred to me that the pairs of triangles that are almost coplanar >> could be made coplanar, and thus made into solid 4x8 panels, if I'm willing >> to split the top irregular piece into two pieces. This would seem to be a >> bit stronger: >> >> >> >> <https://lh3.googleusercontent.com/-Lrh1QPfXpm4/WbQhwJnTIdI/AAAAAAAABJg/WHe90aiqWL0qP045aDXQO7NtHWvCPvtlQCLcBGAs/s1600/Screen%2BShot%2B2017-09-09%2Bat%2B9.48.16%2BAM.png> >> >> >> So, I'm leaning this way now. Thoughts? I guess the flat top is worse for >> rain... >> >> >> On Thursday, September 7, 2017 at 5:25:00 PM UTC-7, Bob Hearn wrote: >>> >>> Cool, thanks, guys! >>> >>> So, nobody's worried about stability? >>> >>> I'm going to start modding my H12 as soon as I settle on attachment >>> strategy (velcro, etc.). I think maybe I can assemble the entire thing >>> myself with velcro, and a short stepladder. The top piece is challenging, >>> but could maybe be velcroed from the inside, with tape handles inside the >>> top piece to pull on to get enough pressure. For rain proofing, maybe >>> attach a small nylon skirt to the top piece, that flops over the edges of >>> the adjoining pieces, maybe weighted. Elsewhere, orient the velcro seams to >>> keep out rain. Also maybe velcro the tarp to the bottom edges. >>> >>> I have to figure out the roof-section hinge parity, and play with the >>> model to convince myself I can attach it to the walls edge-by-edge, without >>> assembling the roof as a unit first. Placing the roof on the base of the >>> H12 took four of us. >>> >>> Bob >>> >>> >>> >>> On Thursday, September 7, 2017 at 4:24:56 PM UTC-7, Vinay Gupta wrote: >>>> >>>> OH I totally wasn't understanding that until I saw the CAD model - I >>>> didn't see how the doorway worked. >>>> >>>> That's great! That would be incredibly useful because doors are hard, >>>> and being able to prefab a 4x8 door unit and just drop it into the design >>>> would be great. >>>> >>>> Nice work! >>>> >>>> V> >>>> >>>> -- >>>> *Vinay Gupta * * [email protected] * *http://re.silience.com* >>>> <http://re.silience.com> >>>> *Free Science and Engineering in the Global Public Interest* >>>> UK Cell : +44 (0)7500 895568 Twitter/Skype/Gtalk: hexayurt >>>> "In the midst of winter, I finally learned that there was >>>> in me an invincible summer" - Albert Camus >>>> >>>> On Fri, Sep 8, 2017 at 12:12 AM, Bob Hearn <[email protected]> wrote: >>>> >>>>> Thanks. However, maybe it's a pipe dream, but I want to be able to set >>>>> it up and break it down solo. >>>>> >>>>> I solved for the dimensional parameters of this "5-1/2 yurt" in >>>>> Mathematica (the back-wall angle, 112.4°, determines the rest of the >>>>> geometry), and modeled it in Rhino, to figure out area, volume, etc. >>>>> Here's >>>>> a 5'11" guy next to it. >>>>> >>>>> >>>>> <https://lh3.googleusercontent.com/-XvO9NYhcGFk/WbHRJ0Q1HrI/AAAAAAAABIo/XGWXReLupAUn1bpPT2e5ft7jvKpRRn_aQCLcBGAs/s1600/h5.5.png> >>>>> >>>>> >>>>> Here's all the info, compared to other popular designs: >>>>> >>>>> >>>>> >>>>> <https://lh3.googleusercontent.com/-y7_qiM2txzU/WbHRSa1ROLI/AAAAAAAABIs/A21_M9IJSLoHOWyelPJllY0xZxQ_C_OwACLcBGAs/s1600/h5.5-table.png> >>>>> >>>>> >>>>> >>>>> My collaborator here, Greg, has this to say: >>>>> >>>>> >>>>> "In the H12, the rope loop and guys pull the roof together and down >>>>> against the walls, and also pull the (tops of the) walls in towards the >>>>> middle. It's a pretty secure arrangement and the net force is straight >>>>> down. >>>>> >>>>> In the new design, I don't see a way to neatly pull all of the pieces >>>>> together and end up with a net force straight down... but it may not be a >>>>> problem in practice, especially if the panels are attached securely and >>>>> the >>>>> structure starts out relatively stiff. >>>>> >>>>> I'm mostly worried about where the roof attaches to the top of the >>>>> door panel and where the vertical "roof" triangles are stacked on top of >>>>> the walls on either side of the door. In the worst case, if the door >>>>> panel >>>>> ends up carrying some weird loads that it can't handle, it could be >>>>> reinforced with plywood (as you suggested)." >>>>> >>>>> >>>>> But then, those vertical triangles stacked on top of walls also exist >>>>> on the H13, which by now must be considered pretty battle-tested? >>>>> >>>>> Bob >>>>> >>>>> >>>>> >>>>> >>>>> On Thursday, September 7, 2017 at 10:25:47 AM UTC-7, Hunter King wrote: >>>>>> >>>>>> Velcro has been good to us. ~10 mins setup time. You need one tall >>>>>> person inside for teardown and two people outside. >>>>>> >>>>>> On Tue, Sep 5, 2017 at 6:15 PM, Bob Hearn <[email protected]> wrote: >>>>>> >>>>>>> I just got back from Burning Man 2017, using an H12 I bought from >>>>>>> Reno Hexayurt. I was pretty happy with it (especially when attached to >>>>>>> my >>>>>>> large swamp cooler), but a campmate (also bought Reno H12) and I are >>>>>>> wondering how best to (1) increase the door height, and (2) speed up >>>>>>> set up >>>>>>> / break down, ideally allowing single-person assembly. I guess an H13 >>>>>>> would >>>>>>> be the default choice for a taller door, but... >>>>>>> >>>>>>> I've been playing with cardboard models, and came up with this, >>>>>>> which I haven't seen anywhere else: >>>>>>> >>>>>>> >>>>>>> >>>>>>> <https://lh3.googleusercontent.com/-AXBmIP330Jk/Wa9Iz8VsSxI/AAAAAAAABH4/D_YSoKDo_S0E1vKLX04ltoNaRaNRh6R-wCLcBGAs/s1600/IMG_1429.JPG> >>>>>>> >>>>>>> <https://lh3.googleusercontent.com/-tW2NVcRT9tI/Wa9I6t2IQvI/AAAAAAAABH8/8tw3MCmUzsExBrgNAt0ZxUsLqAc6WcttACLcBGAs/s1600/IMG_1430.JPG> >>>>>>> >>>>>>> <https://lh3.googleusercontent.com/-mrAFfSdw-cw/Wa9JBnIWkMI/AAAAAAAABIA/euZcHLAANmQ5dSxUHFNmKhqkfMmV4msbgCLcBGAs/s1600/IMG_1431.JPG> >>>>>>> >>>>>>> It's kind of a 5-1/2 yurt, I guess, made from 13 panels: five >>>>>>> ordinary walls, one vertical panel for the door, roof made from six >>>>>>> panels, >>>>>>> plus the top piece which is an odd shape (4-8-8 isoceles). >>>>>>> >>>>>>> One cool thing is that the roof (apart from the top piece) can fold >>>>>>> as a single permanently hinged unit, rather than the two needed for an >>>>>>> H12: >>>>>>> >>>>>>> >>>>>>> <https://lh3.googleusercontent.com/-FHtB0xx_DEI/Wa9KAzGGZjI/AAAAAAAABII/B3RoEjwFGlU_QX5KwdaeJok6NnVNznwwQCLcBGAs/s1600/IMG_1435.JPG> >>>>>>> >>>>>>> <https://lh3.googleusercontent.com/-H0nqnGtsYXI/Wa9KHDdYeSI/AAAAAAAABIM/PnweExqevYUvGJPcfjUivb_6eVcG9vm5QCLcBGAs/s1600/IMG_1433.JPG> >>>>>>> >>>>>>> >>>>>>> So that's an idea for a taller door, slightly less sf than the H12 >>>>>>> (which is more than big enough for me and my wife), and a lot more head >>>>>>> room. But, I am worried about stability. Anyone have any thoughts there? >>>>>>> >>>>>>> As for quicker assembly, we've been thinking zippers, velcro, rods >>>>>>> threaded through eyelets, bungie balls, cable ties... I see some good >>>>>>> discussion in this forum on velcro. But that would seem to still have >>>>>>> one >>>>>>> of the disadvantages of taping the non-permanent hinges, namely >>>>>>> reachability for the roof section. Zippers you can work from a long >>>>>>> pole. >>>>>>> Of course for all of these you also have the waterproofing issue. >>>>>>> >>>>>>> It's a long time to BM 2018, I know, but this is what's in my head >>>>>>> now; might as well work on it! >>>>>>> >>>>>>> Any input would be appreciated; thanks! >>>>>>> >>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "hexayurt" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to [email protected]. >>>>>>> To post to this group, send email to [email protected]. >>>>>>> Visit this group at https://groups.google.com/group/hexayurt. >>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>> >>>>>> >>>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "hexayurt" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> To post to this group, send email to [email protected]. >>>>> Visit this group at https://groups.google.com/group/hexayurt. >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> >>>> -- >> You received this message because you are subscribed to the Google Groups >> "hexayurt" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at https://groups.google.com/group/hexayurt. >> For more options, visit https://groups.google.com/d/optout. >> > -- You received this message because you are subscribed to the Google Groups "hexayurt" group. 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