normally there are various types of holes on a plastic part, for example through holes, blind holes, screwed holes, and irregular shaped holes. A professional designer must realize holes should be as simple as possible, because a complex hole will increase the difficulty of mold making.
In my opinion, there are many special requirements and rules for the design of plastic products.
thanks so much for sharing your experience on this plastic product design detail
thanks for sharing your experience on plastic product design
I believe you have a lot of experience on this issue
thank you for sharing your experience