How to save on CNC machining

Though it’s one of the most consistent, precise, and flexible manufacturing methods available, CNC machining can be prohibitively expensive, discouraging some product teams from exploring the technology. However, understanding the factors that influence the cost of CNC machining can also help to drive down those costs, making the technology more accessible.
Generally speaking, machining time is the main driver of cost; the longer it takes to machine a part, the more expensive it will be. In addition to machining time, there are start-up costs related to design, process planning, and CAD file preparation. Product design teams must also consider material costs, which depend on the price of the material as well as the ease of using that material. Other costs may include special tooling, quality control, finishing, or additional processing steps, depending on the complexity of the part.
It can be challenging to reduce costs associated with CNC machining — but it’s far from impossible. Optimizing part designs for faster machinability can slash a number of costs. Here are some simple design tweaks that can lead to significant savings.