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building dome - help! - Forno Bravo Forum: The Wood-Fired Oven Community

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Photo Galleries are back! Instructions below.

Dear forum users,
Thank you for your patience with the Photo galleries. We've got your galleries online!
We have finished writing a custom script to migrate the PhotoPlog to vBulletin5’s albums.

Unfortunately V-Bulletin killed the "Photoplogs" in their software upgrade which was unforeseen and we're the first development group to have written a script for getting the galleries back... that said, it took some time to reverse engineer the code and get the albums to move over seamlessly!

Forum users will be able to access their “PhotoPlog” images through their user profile page by clicking on the “Media” tab.
They will also be able to browse other albums by going to the albums page. (On the forum site, there is a link in the black bar beside “Forums” to the albums.)

In order for users to create an album please follow the steps below.
1) Go to user profile page and click “Media”
2) Click Add Photos
3) Enter Photo Gallery Title in the first field
4) Click Upload or Select from Photo Album to add photos
5) Click Post
6) Once posted, the album will be created as a “Topic” on the albums page for the public to see. The topic title will be the “Photo Gallery Title” they created before uploading their photos.


To create this migration path we used vBulletin5’s default album structure. Unfortunately, it won’t work like the “PhotoPlog” but is an album/gallery component on the forum now.
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building dome - help!

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  • building dome - help!

    folks i just started building my dome and it's turned into a nightmare. i built the whole thing only to have it collapse.
    the refactory mortor i have is sh!thouse and doesn't seem to dry hard or stick to anything. i mixed it 50% with normal cement and sand and that seems to have improved things but i'm still not confident in this lastest arch. the problem is got to the point of putting in the key stone and it only went in about 1/2 way.
    now should take out the key stone and cut it some more or will it do it's job here it is?
    my other question is, is there a prefered method of pulling out the supports once the mortor is dry?
    and finally, just how much mortor should each block need on it? the stuff is setting so fast on the block i can't even pour it down the cracks.
    http://i43.tinypic.com/501heq.jpg

  • #2
    Re: building dome - help!

    Your dome has no dome. It is flat in the middle. Look at basic phyisics of stone masonry, the flatter the arch the stronger the foundations/footings holding the arch have to be. I'm no expert but the shape of the arch you have chosen is not a constant arch(it appears flat in the middle) and the arch needs a bigger arch(or the circumference of a smaller circle to follow). I hope that I have made sense. If not read up on how the stone masons used to build arches in old stone churches and bridges. Once you read about the physics of a stone arch, it should be reasonably easy to build.

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    • #3
      Re: building dome - help!

      Jason is right - your arch is so flat that it has very little chance of succeeding.

      [the stuff is setting so fast on the block i can't even pour it down the cracks.
      Are you soaking your bricks before mortaring ? It sounds like your bricks are just sucking the water right out of your mortar. This gives you a cold joint which is almost sure to be weak.

      Not to rain on your parade, but you probably need to go back to basics. Have you downloaded the free Pompei plans ? They contain a wealth of information and tips that can save you valuable time and effort.

      Good Luck
      Keep posting and we'll try to help out. The more pictures and information you give us, the better the feedback will be.


      Bruce
      Sharpei Diem.....Seize the wrinkle dog

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      • #4
        Re: building dome - help!

        Don't mix in regular cement and sand, it is made to use straight.
        Wade Lively

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        • #5
          Re: building dome - help!

          Tim
          My suggestions are such...
          1. move the walls in a bit so that their base rests flat on your floor bricks...there will be a tremendous amount of thrust acting on them even with cladding(which you will need)
          2. Hang a chain on a piece of plywood at your desired span and arch height and then attempt to completely enclose that curve in the center of the bricks comprising the arch...that will give you a chance of keeping the flatter arch vault without necessarily compromising stability
          3. check out this website about arches vaults and domes Auroville Earth Institute is a research, design and developing agency for vaulted structures, construction of various Vaults, Arches, Domes (VAD).
          Good luck and all the best!
          Dutch
          "Making the simple complicated is commonplace; making the complicated simple, awesomely simple, that's creativity. " Charles Mingus
          "Build at least two brick ovens...one to make all the mistakes on and the other to be just like you dreamed of!" Dutch

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