A Coordinate Measuring Machine (CMM) is an advanced computer-controlled inspection system used to accurately measure the dimensions and geometric characteristics of objects. It consists of a base or table, a movable bridge or arm, and a probing system with a touch-trigger or scanning probe.
A CMM operates by moving the probe along the object's X, Y, and Z axes. The machine records the position of the probe at each point, collecting coordinate data that represents the object's surface. The data is processed by specialized software to create a measurement report. This allows us to measure curves, angles, holes, and other complex geometries.

Seymour Tool and Die provides dimensional inspection services to manufacturers across Pennsylvania and New York from our shop in North East, PA. You do not need to have us machine the part. We inspect parts made anywhere, by your own shop or by another supplier, and measure them against your print.
Common Requests Include:
Every job runs on our Emerald CMM 785, which handles parts up to 27.55" x 31.49" x 19.68". Send us the print and a part count and we will quote it.
Each inspection comes back with a documented dimensional report. It lists every callout on your print, the measured value, the tolerance, and a clear pass or fail for each one. Nothing is summarized away; if a feature is out, you see by how much.
The report is delivered as a PDF along with your parts, so your quality team, your customer, or your supplier can all work from the same numbers. If you need the results in a specific format for a first-article package, tell us when you request the quote.
What's the purpose of a CMM inspection machine? A CMM inspection machine uses a probe to measure a piece along the X, Y, and Z axes (width, height, and depth). Specialized software processes the resulting data and creates a report on the piece's measurements. The report is then compared to the piece's specifications to determine whether or not it was machined accurately. What is a bridge CMM and how does it function? A bridge Coordinate Measuring Machine (CMM), such as our Emerald 785 CMM, is a precision measurement device used in manufacturing and quality control processes. It's named for its bridge-like structure, which consists of a stationary base and an overhead bridge that spans the measurement area. The functioning of a bridge-type CMM involves the use of a probe attached to a moving arm or a gantry that travels along the bridge. The workpiece to be measured is securely placed on a table beneath the bridge. What industries are CMM machines often used in? CMM machines are used whenever pieces must be made to very specific measurements. This includes industries such as automotive, aviation, engineering, and medical device manufacturing. Can CMM machines measure complex shapes? Yes! A CMM machine is capable of measuring complex shapes, including curves, holes, and other nuances. How does using a CMM impact the machining process? Inspecting a finished piece with a CMM machine increase the length of the manufacturing process. In exchange, it helps ensure that the finished piece is as accurate as possible, which saves time and money in the long run. CMM Inspection FAQs
Interested in our precision machining services? Contact our skilled machinists today with any questions, comments, or suggestions about your job and what we can do for you.