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How do you select the right injection molding material? This is a very difficult question. Making the decision even harder is the fact that there are over 300,000 different types of material available, and that number grows by 750 more every year. Some people think the best thing to do is just select the latest [...]

Designing plastic parts is a complex task involving many factors that address a list of requirements of the application. In addition to functional and structural issues, processing issues play a large role in the design of an injection molded part. Adhering to some basic rules will result in a part that, in addition to being [...]

What do a leather wallet and a ketchup bottle cap have in common? You got it…they both implement the living hinge to bring the object to life through movement. When speaking in terms of manufacturing, a living hinge is a thin flexible web of material that holds two rigid plastic pieces together. The living hinge [...]

One of the most common questions we are asked is “How much draft do I need for the texture that I want?” The general rule of thumb is that you allow for 1.5 degrees of draft for each .001″ of texture finish depth. However, there are other considerations that must be taken into account due [...]

As plastic product designs become more complex, Design for Manufacturing (DFM) plays an instrumental role in successfully launching new products on time and under budget.  Our DFM service allows customers to take advantage of the vast manufacturing experience and knowledge of the dedicated Quickparts manufacturing team.  This service (valued at $300) is offered free of [...]

I hope the end of the year is treating you well. We have had a few conversations with customers recently regarding shut off angles, and I wanted to get one final post out to everyone this year to briefly discuss the subject. A shut off angle is where two parts of the mold shut against each [...]

Last month’s design tips discussed how draft angles are specific to each part that is built.  This month we will look at some standard injection mold resins and some of the properties that they possess. When deciding which molding resin to use, one must consider the mechanical properties, molding properties, and cost of the resin selected [...]

Draft angles are needed so that a plastic part can be released from the mold without distortion or damage. The high pressures of injection molding force the plastic to touch all the surfaces of a mold’s cores and cavities. The cavity becomes so tightly packed that it is often difficult to remove the part. Sometimes, [...]

We learned last month that selecting the optimal gate size and location is vital in the creation of any molded part. However, that is just half the story. Just as pivotal to the success of the design is the type of gate that is used. There are actually four main types of gates that are [...]

“Out of which material should you build your mold, steel or aluminum?” This is a very common question that we receive from our injection molding customers and is an important decision to make. The answer is usually dictated by your project requirements, expectations, and what ultimately defines “success” for your project. QC10 aluminum is an [...]