Design for Manufacturability for CNC

Design for manufacturability means designing parts that are easier, faster, and more reliable to machine. Small geometry changes can make a large difference in cost.

Useful DFM habits

• Use larger internal radii when possible
• Avoid unnecessarily deep pockets
• Keep wall thickness realistic
• Use standard hole sizes and thread depths
• Limit tight tolerances to functional features
• Reduce the number of setups where possible

Talk to the supplier early

A machine shop can often suggest changes that preserve function while reducing cost. Early feedback is cheaper than redesign after a failed quote or prototype.