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Hello,
I don't have much experience with plastics, so I am looking for advice.
I have a part machined from a piece of polycarbonate. I want the surface finish to be good enough that it looks clear, not translucent - almost glass-like.
How do I specify that finish on a drawing? I imagine I need a symbol to machine it all over, but what roughness value corresponds to the kind of finish I am referring to?
Thanks for your help.
Cheers,
John