hexagon logo

10:1 Rule - What spec do you use?

There's been some debate here about what the CMM is capable of measuring to when it comes to the 10:1 rule. Obviously we can change the resolution on the dimensions we want reported way out. What number do you guys reference for this?
Parents
  • Without even looking at any actual numbers from your machine I can tell you that in real world applications, in a very well controlled environment (<1Deg C average temperature variation per 24 hrs, <1deg C stratification throughout the room), your machine is, at best, capable of ~0.010mm repeatability over a 1 meter length. The machine spec will tell you that it is closer to 0.005mm/meter but you won't really achieve that in real world applications.

    If you don't have a very well controlled room then you can easily double or even triple the value stated above.
Reply
  • Without even looking at any actual numbers from your machine I can tell you that in real world applications, in a very well controlled environment (<1Deg C average temperature variation per 24 hrs, <1deg C stratification throughout the room), your machine is, at best, capable of ~0.010mm repeatability over a 1 meter length. The machine spec will tell you that it is closer to 0.005mm/meter but you won't really achieve that in real world applications.

    If you don't have a very well controlled room then you can easily double or even triple the value stated above.
Children
No Data