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    Re: Micrometer: best practices with plastic parts

    Any chance you can use a drop gauge instead? (Google images if you're unfamiliar). This would mostly be applicable to parts with large flat sections, so it depends on what you're trying to measure. I...
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    Re: Uniformity of thickness of molded plate

    Just an update on this topic. According to the FEA model, most of the movement of the mold cavity is due to compression of the plates from the injection pressure, and less from deflection of the...
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    Re: Screw pulling air through nozzle

    Brent: Yes I mean barrel (I'm used to working on engines). The resin is Zeonor COP. I've been molding for about a yeah in my garage, entirely self-taught from print materials and trial-and-error, so...
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    Screw pulling air through nozzle

    I recently realized that when the screw retracts it is pulling in air after a few seconds. What seems to happen is when there is melt in the nozzle it seals it off and the screw retracts normally...
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    Re: Uniformity of thickness of molded plate

    Thanks everyone for the very helpful responses. I've been investigating these ideas and have come up with some possible solutions. It's a single cavity, cold runner. I had previously checked the...
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    Uniformity of thickness of molded plate

    I'm having an issue getting uniform thickness on a flat part that I am molding. The part basically amounts to a 3" square plate, 0.1" thick, gated radially near the center. I don't have a choice with...
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