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10. Molding and casting

This is the part I have never tried. I studied metal casting in college. Of course, I only stayed in textbooks, and those knowledge disappeared with the end of the exam. Now, I want to practice it. I’m looking forward to itThis week I worked on defining my final project idea and started to getting used to the documentation process

Molding

There is an animated model on my desk. It comes from a blind box given to me by a friend. Fishing sounds like a studio laziness in Chinese. I like this little shark very much and use it as a reference”Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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First design it in solidwoeks.Because of the structure of the shark, oh, I divided it into two parts from the middle

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Thanks to my tutor’s very key suggestions, I enlarged some details and enhanced the docking between the two molds.1648645722112.png1648645746755.png1648645751768.pngTo save time, I made a mold with 3D printing (I’ll cut wax bricks with an engraving machine soon!)

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Apply Vaseline on the surface for easy removal of the mold

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Then use silica gel to mix the curing agent. The ratio I use is 100:1,fill the mold with silica gel,According to the instructions, he needs three hours to cure1648646118711.png1648646122821.png

When I took off the mold, I found that I made a mistake. My mold mirror design was wrong. Now the two pieces can’t be together!

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Casting

In order to make up for my mistake and make the two silicone molds closely combined, I had to cut off the protruding part with a knife. I couldn’t wait to see my little shark, so I filled it with plaster that could solidify in only 30 minutes.1648646429525.png

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Shark squashed without tail

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Last update: March 30, 2022