6/9/2023 0 Comments Shrinkit mold![]() The tan one was an experiment to reduce the amount of plastic in the cork mixture- obviously not quite enough. The green one has green coloring added to the plastic resin. Nonetheless the frisbees came out pretty good. It did not take the shape of the rubber well and buckled a lot around the edges. The concave half of the fiberglass mold seemed to come out well, but the convex one did not. Puede encontrar más información al respecto en el manual de la aplicación. Conversión entre los tipos de archivo que figuran a continuación también es posible con la ayuda de ShrinkIt. We have used a fiberglass "mother" mold in other contexts in our lab, but for this one it didn't quite work. We changed mold temperature, material temperature, injection pressure. ShrinkIt es capaz de abrir los tipos de archivo que se enumeran a continuación. The rubber is the Brush On 60 rubber from SmoothOn and the fiberglass has an epoxy binder. Reduc-It is a unique positive casting material that uniformly shrinks 50 to create replicas to scale from most models. I have always wanted to make a frisbee from the cork, so I made a rubber/fiberglass mold of a frisbee and cast it in cork mixed with a flexible plastic called Smooth Cast 321 from SmoothOn. Si hay una versión de prueba de ShrinkIt, debería estar disponible en su sitio web oficial. El software de prueba puede incluir características completas o limitadas. ![]() I cast the bolts in with the plastic in the hope that they would help in demolding but the layer of plastic was so thin they just popped right out.įor my research we do a lot of molding and casting of cork composite. Versión de prueba de ShrinkIt El software de prueba generalmente es un programa que puede descargar y usar durante un cierto período de tiempo. The surface of the mold (where it was laser cut) was very rough and I think this caused uneven mold release application. Unfortunately the plastic casting refused to release from the mold. Rigid on rigid is generally asking for trouble, but the plastic I chose tends to be fairly flexible in thin sections. So I decided to cast a rigid material into the mold. I had a feeling the rubber would be too weak to cast in such a shallow mold- I figured it would tear a lot upon demolding. As it was it was two passes (one at 30% intensity, 60% speed and then one at 60% intensity, 60 % speed). This took a VERY long time and in the end I didn't have enough time to run enough passes to make it quite as deep as I wanted it. The first method to create an enlargement of a casting, is approached the same as for making a duplicate size casting, which is to create a normal silicone mold. I fixed those and then cut a bigger mold on the laser cutter by rastering. ![]() Also, after casting it in the rubber, I realized that I still needed to make some connections between areas so that parts wouldn't flop around or fall out. I moved onto my second choice idea which was to cut a lace pattern to be cast in rubber- and eventually in cork.įirst I cut it on the modela but, since I made the pattern as a 8" x 8" picture and then had to shrink it down to fit on the wax, a lot of the details got lost. For the digital component of this assignment I originally wanted to make a mold of a soup ladle, but after modeling it for a while in Rhino, I decided that cutting it on the shopbot would be too difficult (if even possible).
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