Use a Minimum Radius to avoid excessive small tool movements, especially in corners. This reduces inefficient motion during a radial cut, thus saving machine time and reducing tool wear.
Note: The minimum radius cannot be less than 5% of the cutter radius.
Example 1: Minimum Radius
Examples 1 and 2 use a 0.5-inch endmill. The Minimum Radius values used here are larger than typical for illustration.
Minimum Radius = 0 produces excessive small cutter movements
Minimum Radius = 0.25 reduces unnecessary radial cuts
Example 2: Minimum Radius
This narrow passage is 1.0 inch wide.
Minimum Radius = 0.25 prevents the tool from cutting the narrow passage.
Minimum Radius = 0
When you use a Minimum Radius value, follow the operation with a TrueMill Reference operation to remove the remaining material.