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Electric Cob Mixer

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Uploaded by on May 3, 2008

Category:

Howto & Style

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Standard YouTube License

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Uploader Comments (iloveadobe)

  • What type of cob mixture do you use for the interior walls or finishing plaster? In particular, do you still add straw? I'm thinking not because the straw would be seen protruding out and might ruin the interior finish.

  • Depends on what look your going for... chopped straw is used often. 1" or so. Otherwise, a finish plaster could also have paper pulp, manure, chopped straw, cat tail fluff... etc.

    A mortar mixer is prolly best for finish plaster. I use a 'concrete' mixer since that's what I have. For alis, or clay paints I use a drill with a paint mixing attachment.

    Sifting materials is a must for finish work!

  • how do u mix clay that has dried into lumps? taken from a building side when they dug out the fountations? its really dried n hard now

  • Soak it in water.

  • I built a 600 sq ft building with a cement mixer two years age. My mix was much dryer and thicker than yours. Be careful how wet the cob mix is or it will slump, spluge and shrink then crack! Water has to vacate eventually. I used to use bread mixers and cement mixers to mix up my potter clay batches too!

  • Perhaps I should have called this, Making Plaster. :)

    True, this mix would have to sit around and dry before using it in cob wall construction. But in the high mesa sun it dries out quick! So by the time you get around to it it definitely stiffens up. I've been applying this mix as an infill plaster of sorts.

Top Comments

  • 20 shovels earth, 10 handfuls straw, water for goop consistency and one brown Lab dog as site manager.

    Nice and uncomplicated ..Bravo

  • I liked that little song lol

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  • Very nice one man job, make the Machines break their backs for a change. all way wondered why out of all the Cob making vids I watched no one does this the fool around with feet hands and tarps. Planing a cob rocket heater build here real soon, why don't ya fly down to Australia and help me out so i can partake in your knowledge. Best wishes

  • I wish there where more vids about building cob alone. I do like the idea of the mixer and the rototiller to do cob. Earthbags would be another idea for the lone builder. I have a girlfriend but I know I would be building it alone!

  • Cool, what part of the country are you in? Looks like central Oregon? I live in bend and was wondering if a cob house would do good here? I know it doesn't rain alot here but it does enough.

  • Ever try sticking a bowling ball in the mixer to help crush dry materials?

  • Thanks adobe, I'd be going for a very smooth-to-touch look so I presume cat fluff would be best for that?

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