CNC machining is the most popular manufacturing technology for making high precision parts for functional analysis, prototyping, and regular production, especially for metal parts. While designing the parts for CNC machining, a designer needs to remember few important tips to generate a successful design from the manufacturing point of view. Poorly designed parts may lead to cost overruns, longer lead time, design rectifications or simply cannot be machined.

Here are a few important design rules to which can improve the CAD part for CNC machining.

Avoid too small features

Features smaller than 2.5mm cannot be machined since most CNC machines tools can be machined up to 2.5mm. Features below 2.5mm need special tools and processes which will lead to additional cost impact.