Another instance of my programmer and I butting heads. First off, I want to ask... Is an alignment needed to measure the concentricity of 2 circles? If so, can a proper alignment be made with paint on the plane that we are leveling the part to? He says that even with paint (very uneven paint) on the part, the concentricity will be accurate. Again, be gentle.
You don't need an alignment to measure circles for concentricity? That seems couterintuitive to me. Aren't circles 2D features that are reliant on the workplane and alignment they are measured from? With no alignment, wouldn't you be dependant on the part being perfectly square with the machine axis? And the circles being exactly perpedicular to the probe?
This was my first thought as well.
The cmm needs to know how the part sits before it can decide how to report it.
You don't need an alignment to measure circles for concentricity? That seems couterintuitive to me. Aren't circles 2D features that are reliant on the workplane and alignment they are measured from? With no alignment, wouldn't you be dependant on the part being perfectly square with the machine axis? And the circles being exactly perpedicular to the probe?
This was my first thought as well.
The cmm needs to know how the part sits before it can decide how to report it.
