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CMM and Portable CMM

What is CMM (Coordinate Measuring Machine)?

CMM, known as the coordinate measurement system, measures according to the Cartesian coordinate.  X, Y and Z axis moving the head of the system connected to the probe rotates 360 degrees in its own axis offers versatile measurement. With computer control, the head is automatically routed and the dot is automatically taken when it touches the part. Dimensional measurements are made by creating geometries with the obtained points. It is possible to measure with and without CAD data. This plan can be repeated automatically when cad data measurement is planned. CMM looms have high precision between dimensional measurements. Measurements of precision of 1 micron or even less can be made.

What is Portable CMM?

Portable CMM devices work with coordinate measurement logic, such as fixed CMM devices. These systems, usually 6, 7 or 8 axes, collect data with signal manufacturers on their axis. As the number of axes increases, their sensitivity decreases. At the end of the system, a probe is contacted on the surface of the part while the trigger is pressed to obtain the coordinates of this quota. With these points, measurement is made by creating the desired geometries. (Plane, circle, cylinder, vector, sphere, etc.)
Measurement work can be done with or without CAD data. When data is to be measured with CAD data, the CAD data and the position of the system in space are matched using reference systems. These methods are generally given the following names;

  •  RPS
  •  3-2-1
  •  Bestfit

It can be used with different names in different programs. If measurement is made without CAD data, the part is first fitted into the coordinate system and the X, Y and Z planes are determined. After that, the desired measurement can be done. In cases where simple measurements are taken, measurements can be made without placing them in the coordinate system.

​Application Areas of CMM and Portable CMM

  1. If the original manufacturer of a product no longer produces the product, 2D / 3D documents of the product may need to be removed,
  2. Used to continue through the original design when it is deemed inadequate,
  3. When original design data is lost or not available,
  4. To fully reveal the good and bad properties of competing products,
  5. Creating data for mechanical analysis of competing products in new product development,
  6. To discover new ways to improve product performance and features,
  7. Deformation and displacement analyses of worn parts,
  8. Used for archiving.
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