Manufacturability Warnings - Milling

This article describes the existing thresholds used to provide manufacturability feedback for milling. These warnings appear in the Part Viewer when thresholds are hit by the files you are viewing.

If you are interested in customizing these values for your shop, contact suppport@paperlessparts.com.

Milling Thresholds

  • Minimum hole diameter = 1/16" or 1.5875 mm
  • Maximum hole diameter = 2" or 50.81 mm
  • Deep Hole: Depth to diameter ratio = 8x
    • Note: This will treat sections of a compound hole feature (like a counterbore) individually
  • Slanted Hole: Angle Threshold between axis of hole and planar entrance axis > 2 degrees
  • Depth limit for surfacing faces that can be accessed from multiple directions: 1.797" or 45.65 mm 
  • Depth limit for profiling faces that can be accessed from multiple directions: 2" or  50.81 mm
  • Minimum area of surface used to consider for a mill setup: 1,000 mm^2
    • Note: This assumes surfacing 100 sq. mm adds 1 minute to runtime.
  • Depth of cut to diameter threshold to call out a radiused profiling cut as a deep cut. = 3.0
  • Depth of cut to diameter threshold to call out a planar profiling cut as a deep cut = 4.0
    • Note: We estimate the diameter of the tool used given the max tool diameter input and minor local too spacing.
  • Internal radius is too small threshold = <1/32" or <0.79375 mm 
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