: These define the internal and external shape of the part.
For those starting in mould design, several "rules of thumb" ensure a part can be successfully manufactured: Injection Moulds for Beginners
For a deep dive into the technical details and step-by-step assembly, Rainer Dangel’s Injection Moulds for Beginners is a standard industry resource that uses a practical "bowl with lid" example to teach the fundamentals. Injection Moulds for Beginners | ScienceDirect : These define the internal and external shape of the part
: Vertical faces should have a slight taper (typically 0.5 to 1 degree) to allow the part to slide out easily without sticking. Injection Moulds for Beginners