In chapter 1 lesson 2, we build on machine anatomy by exploring how CNC machines move in space and how that directly impacts your designs.

We’ll break down the X, Y, and Z axes using the right hand rule, and show how the spindle and table interact to position the tool and material. From there, we’ll introduce three axis, four axis, and five axis machining, and how added rotation increases complexity while reducing setups and improving tolerances. Most importantly, we’ll explain the concept of the machine’s work envelope and why it defines the maximum size and reach of your part.

What you’ll learn in this episode:

• How CNC machines use X, Y, and Z axes to move in space
• The right hand rule and how machines interpret direction
• The difference between three, four, and five axis machining
• What the work envelope is and why it matters for your designs
• How machine limits affect part size and accessibility