An injection molded, threaded cap made from a 3D-printed metal mold insert, right, created on a Mantle P-200 machine. Within reach of you right now are probably five to 10 plastic products, or parts ...

To robustly secure plastic housings for the wheelchair accessory, the part incorporated threaded metal inserts into molded plastic housings to improve strength. Power wheelchair users have the ...

Having finished the Tools of the Trade series on circuit board assembly, let’s look at some of the common methods for doing enclosures. First, and possibly the most common, is injection molding. This ...

Injection overmolding of unidirectional fibers and preforms is an attractive process for many good reasons. It’s fast, consistent and repeatable, and it can be performed with a machine that is ...

3D printing is all well and good for prototyping, and it can even produce useful parts. If you want real strenght in plastics, though, or to produce a LOT of parts, you probably want to step up to ...

Undercuts (such as those shown) can complicate and, in some cases, prevent part ejection. Eliminate them if possible. Undercuts on injection-molded parts are features that prevent those parts from ...