When you build something, whether it’s from IKEA or Alibaba, think about how the parts fit together. It takes quite a bit of precision to make the pegs align with the holes of a bunk bed, or a functional gear box. As devices get more complicated, the chance increases that “shop tolerances,” on individual parts won’t result in functional assemblies. This is when engineers get involved to tighten tolerances on their drawings. But how do machine shops make parts with tighter tolerances? We create fixtures that hold parts on a datum, the reference plane for other features. We can also run parts on our 5-Axis machine that keeps most parts to 2 operations. Limiting operations is important because it produced parts faster and avoids he opportunity for human error. The next time you have a complex part or an assembly that needs further engineering, look for a Design For Manufacturing expert like Sexton Precision.