KENAT,
You are correct, I should have clarified myself,
What I meant is that because most plastic parts have some form issues and maybe subject to free state variation in the unrestrained condition that joeldonn should look at adding the Free state symbol or a note that parts should be...
Joeldonn,
If the parts you mold are made from Plastic then no the Envelope Principle doesn't apply, Plastic parts are non rigid, you should add a free state symbol or note stating that parts are to be measured at a free state.
