... | ... | @@ -24,10 +24,10 @@ For circular particles, we can make a custom cookie cutter tool which acts as a |
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Milling machine method
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For the same reason, we need to fix the material sheet with double sided tape on a flat plate. W e don't suggest to use milling machine cut the circular particles since it will wast a lot of materials. The milling tool will waste the material in proportion to its diameter. However, a small-sized computer-controlled mill can trace the outside of individual particles and make repeated custom (non-circular) shapes.
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For the same reason, we need to fix the material sheet with double sided tape on a flat plate. We don't suggest to use milling machine cut the circular particles since it will wast a lot of materials. The milling tool will waste the material in proportion to its diameter. However, a small-sized computer-controlled mill can trace the outside of individual particles and make repeated custom (non-circular) shapes.
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We has to lubricate the cutter with dish soap rather than the usual machine oil, which degrades the polymer for both Cookie cutter and Milling Machine methods. With good lubrication, it is possible to create par- ticles with smooth edges all the way down, and no frozen-in stresses.
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We has to lubricate the cutter with dish soap rather than the usual machine oil, which degrades the polymer for both Cookie cutter and Milling Machine methods. With good lubrication, it is possible to create particles with smooth edges all the way down, and no frozen-in stresses.
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More details for Cookie cutter method and Milling machine method can refer [Duke Physics Machine shop](https://phy.duke.edu/instrument-shop), where these methods were originally developed, and they provide photoelatic particles cutting services.
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