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Thread: Concrete Printer (Need Help)
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04-11-2017, 04:11 PM #11
- Join Date
- Jan 2014
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- Oakland, CA
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[I'd suggest you hold onto your money for now and read up on concrete printing for a while. It seems that you've got a lot to learn about it. If you got a system with a concrete pump, you'd want to stop the pump while the machine was paused. Electrical relays can do that on a low-voltage signal from the controller. What's really crucial about printing in concrete is the mixture used. Most concrete will slump to some degree; if it's not being pumped into a form, then you need a mixture that will support itself without slumping at all. Something like that will be hard to dispense with a normal concrete pump, which is designed for a liquid mixture. You'd need something more like a piston (which would need periodic refilling), or a heavy-duty peristaltic pump]
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04-11-2017, 08:33 PM #12
Like I said, Plywood, hammer, and nails, and you can "print" all the concrete you want.
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04-13-2017, 09:36 AM #13
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- Mar 2017
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- 5
thanks all for the reply and for what im trying to achieve this is example chair and for the future some furniture keep in mind i would like if the chair is not heavy and it can support a human weight so i figured the only option is 3d printing since i want the inside partially filled
aa chair.jpg
thanks
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04-13-2017, 10:36 AM #14
Neuo, unless you're doing custom pieces why not go for the casting route?
You can create a rubber mold for far less initial investment costs than 3D printing, plus a faster cycle time and much smoother detail fit for your design.
Use a wooden master model that you can even make by hand.
You will need a positive mold piece as well. And for hollowing out I am thinking CNC'd foam inserts that you suspend in the mold.
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04-13-2017, 02:38 PM #15
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- Jan 2014
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- Oakland, CA
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- 935
If light and strong is what you're looking for in a chair, concrete is the last material you'd want to use. It seems like those designs would work well in some kind of foam, which can be cast in a mold. If you want to use 3D printing in this project, use it to print the mold in sections that can be bolted together. Here's an example of a chair made that way: http://www.jorislaarman.com/work/arm-chair/
My 3D Norn Emissary print
09-13-2024, 02:28 AM in 3D Printing Gallery