Molded threads are everywhere. On the cap of a soda bottle. On the nut that attaches the drain pipe to the underside of the kitchen sink. On those weird-looking screws used to assemble a child’s jungle gym. These are just a few examples of the mass-produced plastic parts we encounter every day, parts that were [...]
but how to design screws on a plastic part, for external screws, the diameter should not be smaller than 4mm, for internal screws, […]
since you mention screwed hole, I want to say some thing, actually screws on a plastic part can be formed during injection process, […]
one thing must remember a sufficient gap must be reserved between holes or a hole and the wall, and the diameter of a hole also relates to it’s depth.
normally there are various types of holes on a plastic part, for example through holes, blind holes, screwed holes, and irregular shaped holes. […]
how to design a draft, the common rules are the following: […]
as for draft, actually different parts have different requirement, a tall or larger plastic part design has a smaller draft, for a special need or higher precision requirement, […]
during ejection, why some plastic parts are scratched? In order to answer this question, I need to introduce Draft to you. […]
today you ask me some thing about support surface, ok! Let me tell you some, when we need to design a support surface for a plastic part, […]
thank you for your suggestions, now I want to tell you how to arrange these ribs: […]