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13/01/2017 at 03:29
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Man, i just stumbled onto this project site and the timing was perfect. I’m picking up a CNC kit tomorrow (Shapeoko 3 XL) so that I can mill two part molds to do some prototype injection molding. I have a 3d printer that I use for the “rapid” prototype for fit/function, but ultimately the goal is to get to injection molding. Obviously, cost is a conern, so thats why Im going the DIY route to fully vet the design.

Anyhow, with the injection molding machine I’m wondering how large of a piece you can work with realistically. My design is “large” but has thin walls (355mm x 585mm). I calculated the internal volume of what the plastic piece is and its about 1.859E+05 cubic mm.

Would the injection molding machine be capable of filling that thin cavity?

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