web analytics
Cast your own - Forno Bravo Forum: The Wood-Fired Oven Community

Announcement

Collapse

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.
See more
See less

Cast your own

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Cast your own

    I'm probably opening a can of worms and hope this hasn't been discussed elsewhere. Has anyone tried using casting refractory cement over a dome of foam. I was thinking that with the base, hearth and cooking surface in place one could place a foam dome shape, probably covered with some sort of plastic sheath and an appropriate front opening accounted for, on top and just trowel over it. Cut out the foam and build a vent. I'm not a mason by any means, so pardon my simplistic approach.

  • #2
    unitary casting

    There's no reason why this couldn't work, but there are two problems. Refractory cement in thick applications takes forever to cure, and it's strength is problematic. I know that the rumford fireplace guy gave up on casting his curved throats from refractory because it took a month before enough moisture was gone that the customer could build a fire. I've noticed around here that folks want to fire up their new ovens sooner rather than later.

    Also, fire brick has an attractive brick-like appearance while cast refractory looks like, well, concrete.

    Someone was discussing plans for something called a "loam" oven:
    The same sort of idea, I think. Building an oven is a lot of work. Why not get the best?
    My geodesic oven project: part 1, part 2

    Comment


    • #3
      Casting

      Thanks. I'm early in the planning and was just wondering. Just out of curiosity, what are the precast ovens, like the ones on this site, cast from?
      Firing up sooner is a good thing!
      Last edited by CAM; 07-21-2006, 10:56 AM.

      Comment


      • #4
        Modular ovens are made from a high-alumina clay, like the firebricks are made from, and then fired to thousands of degrees to vitrify them. It's a very different process than refractory cement. The reason they come in pieces is that there are production difficulties with firing huge fireclay segements, to say nothing of shipping them.
        My geodesic oven project: part 1, part 2

        Comment


        • #5
          David's description is very good. The materials, processes, and infrastructure our producer uses to make precast ovens are all quite sophisticated. They have three decades of experience and are the world's biggest producer of precast wood fired ovens. You have to remember that we make more pizza ovens every couple of months than the largest U.S. producer has ever made - in its entire corporate history. We (the new world) are really catching up on this front.

          For a homeowner making a backyard oven, you have a number of choices. Our precast Forno Bravo ovens (and Artigiano brick ovens) are great. Still, if you want to build your own, and don't want to buy an off-the-shelf oven, you have more choices.

          You can build a brick oven. You have the advantage of using firebricks, which are a domestically-made product that work very well for pizza ovens. The Forno Bravo brick pizza oven plans are free, and very well supported on this forum.

          Or, there are other options. There are adobe, loam and refractory ovens, and probably others. Really, any pile of bricks will absorb heat, and cook a pizza. They say the Greek infantry cooked pizza on their shields. One of our Italian rental houses had a field stone oven -- dome and floor, without a brick in sight.

          That's the good news. You get to pick how you want to do it. Have fun and enjoy the roast.
          James
          Last edited by james; 07-22-2006, 01:20 AM.
          Pizza Ovens
          Outdoor Fireplaces

          Comment


          • #6
            Thanks

            Lots of info. Thanks a lot for the education and your time.

            Comment


            • #7
              Casting your own

              Hello guys,

              Just want to say great forum, just stumbled on it a week ago. I might be a little late with this response, Cam I did cast my own, A friend and I built an Iglo 2 years ago out of styrofoam blocks shaped it into a dome with the opening and flume hole. Built a wood base to give a 3"-4" thick walls. We had to add a fiberglass skirt to hold in the refactory so it wouldn't slide down. Did alot of experiments on the foam because we wanted to cast many using the same mold so I coated it with metal aluminum tape. Upon casting I coated the tape with a vegetable shortning since I wanted the mold to release easily. We built the first one last year and it works like a charm. We have built the second one using the same mold but I have not installed it yet, waiting for the spring. Hope that helps.

              Dan

              Comment


              • #8
                Cast refractory concrete

                Hi,
                Some years ago I worked for a company that manufactured gas fireplace inserts and burners. For the logs, we cast refractory concrete in latex molds. The cement used in the concrete was a calcium aluminate one manufactured in France and sold under the name of FONDUE. Cure time was 72 hours in a gas fired oven at about 150 deg. F if I remember right. The logs could be subjected to fire immediately after they were cured.
                Earl

                Comment


                • #9
                  One more thing

                  Hi again,
                  I forgot to mention that unless you enjoy research and development and have lots of time to do a proper job, I can't think of any good reason to want to build an oven of refractory, or other concrete over any sort of mold when perfectly wonderful modular and pre-assembled ovens are available from Forno Bravo as are plans for their Pompeii brick ovens.
                  Earl

                  Comment


                  • #10
                    Castable Refractory Kilns

                    I found a link describing how large kilns are cast and I thought you all might find the information interesting. http://artistpotters.com/anagama/castable.htm
                    Author of "Passionate About Pizza: Making Great Homemade Pizza" cookbook http://www.passionateaboutpizzabook.com

                    Comment


                    • #11
                      Better late than never

                      I was a little surprised to see my name on a post when I haven't done so in a while. Thanks for the info guys. Now that my new house is done I'll be building with firebrick when I get a litttle time and finish the fence, sprinkler system......................Oy!

                      Comment


                      • #12
                        Re: Cast your own

                        Have you cast your oven? It seems much easier to make a form than to build the dome out of brick. I have read that refractory cement may not be strong enough. I don't care if I have to wait a month for it to cure. Still sounds like less work than with brick.

                        Comment


                        • #13
                          Re: Cast your own

                          The brick dome is the fun part
                          My geodesic oven project: part 1, part 2

                          Comment


                          • #14
                            Re: Cast your own

                            Too right dmun!

                            Being able to cook your own pizzas is just an added perk...
                            "Building a Brick oven is the most fun anyone can have by themselves." (Terry Pratchett... slightly amended)

                            http://www.fornobravo.com/forum/f8/p...pics-2610.html
                            http://www.fornobravo.com/forum/f9/p...nues-2991.html

                            Comment


                            • #15
                              Re: Cast your own

                              I realize that the construction is enjoyable for many here. I would like an oven to use. The most affordable and easiest route to my goal is why I read this forum. Hopefully there is somebody that can tell me if casting with refractory cement is a workable solution.

                              Comment

                              Working...
                              X