5 Design Tips for Easier CNC Machining

Use practical internal corner radii

Internal corners are produced with round cutting tools. Providing a radius larger than the tool radius reduces tool engagement and makes finishing more stable.

Avoid unnecessary depth and thin walls

Very deep cavities and thin walls can introduce tool deflection, vibration and part distortion. Balanced wall thickness and accessible features improve repeatability.

Make drawing intent clear

Identify datums, critical interfaces, surface-finish zones and inspection requirements. Clear priorities help the manufacturing engineer plan setups around the features that matter most.