by wickinc

For the injection of the material we end up using we can use a screw conveyor. This can squeeze the chalk mixture in with a bit of pressure depending on the quality of job we do. This would let us time the injection accurately if we are wanting one fluid process.

Or we can have a resovior where when we want the chalk mix we tighten the lid so it compresses the content and pushes it out to fill our moulds

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