plastic mold

what is the name of the things (in the photos)?
its name on the part and its name in the mold
thanks

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2 Answers

on the mold its called ejector pins and/or ejector sleeves.

on the part its called witness lines, marks

download gif image and view animation in your browser

Answered with a tutorial: https://grabcad.com/tutorials/plastic-mold

 
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