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Re: Question-resin casting wheels with holes in them
You use plasticene clay to fill up the inner wheel up to the backsides of the holes. Build a mold box, shape the clay to be what will become the shape of the second half of the mold, the clay filling the back side of the wheel up to and flush with the holes. Wheel face is up. You then pour the rubber over this, and when it is set, you turn the entire box over and remove the clay carefully, leaving the wheel in place. Then you use a mold release, pour the second half of the mold, let it set. This way when you fill the wheel mold w/resin, you'll get just small flash in the holes, if you are lucky and can get a nice, tight fit-you may end up extracting wheels w/little or no flash.
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