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Geometry

Dimensional Accuracy (+/-0.001 inches per inch)
Too Low: 20
Easily Achieved: 32 or higher

Surface Roughness (microinches)
Too Low: 20
Easily Achieved: 500or higher

Bounding Box Volume (cubic inches)
Low: 0.24-1
Just Right: 1-50,000
High: 50,000-1,500,000

Wall Thickness
Uniform Walls Prefered: Yes
Max Wall Thickness (inches): 5
Min Wall Thickness with 5 inch span (inches): 0.25

Rounded Corners Prefered: Yes

Compatible Shapes
Typical parts made by sand casting are machine-tool bases, engine blocks, cylinder heads, and pump housings.

Compatible shapes are of the following categories:

• Free Form Drape
  
• Free Form General
  
• Planar
  
• Prismatic
  
• Surface of Revolution
  
• Constant Cross Section
• Thin Wall