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Originally Posted by Dave
Delrin is a great material, but it does not have good flow when used in injection molding with thin sections. We use Delrin in the pump volute insert where wall thickness is higher.
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I think you missed the machining part. Instead of using aluminum stock and milling it use Delrin stock instead. No need for injection molding, just use the machine process already setup and change your feed rate speeds (probably faster to mill) and maybe cutters (probably no need to though).
But anyway that's in an ideal world.
