The design and manufacture of precision optical equipment such as telescopes, lasers, and microscopes requires an extraordinary amount of accuracy. Machined parts that hold optics have to be built to extremely close tolerances
optical aperature
over the expanse of the entire part. This requires insight into how the material is expected to perform in its end use and as it is machined to assure that the product is manufactured as engineered. This especially applies when determining how to machine the part effectively when it involves thin wall construction from solid material where the mounting system needs to be not only durable but lightweight. Machining circular and thin wall materials with minimal distortion demands some serious experience. Determining how something should be machined is more important than simply getting the part to match the print; that experience in manufacturing judgment is why demanding manufacturers are careful not to trust just anyone. It’s important for a qualified shop to have access to the most sophisticated machine tools on the market. It is also critical that the most stringent quality controls are in place when parts are machined.