Originally posted by Mullster
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Record of my 32" Homebrew cast oven, on a brick base - West Midlands, UK
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Originally posted by Nick J C View PostTaped up and ready
Also, did you leave the outer side panels on your former, or remove them when you did the cast?
Thanks again.
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Originally posted by TonyPizza View PostNick J C was the paint pot just placed onto the top of the rectangular block or secured with a glue? did it just pull out up over when the cast was set, leaving you to drop (because of your shims) then pul out the main form?
Also, did you leave the outer side panels on your former, or remove them when you did the cast?
Thanks again.
I didnt end up needing the outer formers, as the casting goo was nice and mouldable, and squeezing the air out was easier without.
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Originally posted by UtahBeehiver View PostBest practices and cheap insurance. When liquid water sublimates to steam the volume of water increases by 1500 times which can build up pressure in the dome potentially cracking either the v/pcrete or render or both.
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Originally posted by Chalky View Post
Ok thanks, what's best practice for attaching the arch? wires and fire cement? I'm still very much at the planning stage, impressed with your build Nick.
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That is how I do it and by no means the only solution. The wires are better tied into the outer rendered shell rather than the vermicrete layer though as vermicrete has no strength, particularly is you make it quite lean as a 10:1 brew.I use some coloured wool tied to the ends of the wire ties because they tend to get lost in the vermicrete. Using some masking tape around the outer arch enables a nice neat finish when removed.
Last edited by david s; 07-08-2020, 12:13 PM.Kindled with zeal and fired with passion.
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Originally posted by mesoiam View Post
Sounds great, could you share the quantities? Is that whizzed up in the blender?
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Hello everyone, im about to start my first wfo
and im really glad i came across this forum as i nearly started yoga ball concrete/perlite dome.
I do have a question, what size stainless needles should i go for? They are 0.4mm Available in lengths of 12mm, 25mm and 35mm.
I do live in uk midlands as well and will be using the same supplier Nick did.
Thank you.
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Reach out to David S he is our resident cast expert on SS length.
Please start you own thread to capture all your questions and answers in a central place and not hijack another members thread.Russell
Google Photo Album [https://photos.google.com/share/AF1Q...JneXVXc3hVNHd3/]
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Although they’re known as ss needles the correct name if searching for them is “melt extract fibres”. The ones I use are 25mm long x 0.5mm thick and not cheap. Add between 2%-5% by weight of dry castable.Kindled with zeal and fired with passion.
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Render scratch coat today. Cardboard around flue to allow for expansion. Mix 1:1:6 Cement: lime: plastering sand with ar glass fibres to reinforce (couple of handfuls per mix). Curved trowels helpful to get hemispherical profile. I made a smaller, thicker one by laminating several layers of ply to the correct radius, which was easiest to apply the render, and the larger one for scraping the profileLast edited by Nick J C; 07-10-2020, 05:54 AM.
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Hi Nick,
I've been following your build and looks really good. I'm at the stage now of waiting for a bit of decent weather to build the sandcastle and get casting, I'm under 30" pizza cast Scotland thread . I've a wee question if you don't mind, reference the gallery. Did you cast the same thickness of homebrew for the gallery as you did for the dome, or was it a little thinner for the flue gallery?
Cheers.
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