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CNC Router Essentials

Design Essentials : 2

a single-sided model, such a carved door panel or sign. The second type is a two-sided shape, such as coin or fish. The third type is a full in-the-round shape, such as a coffee mug, human figure, or automobile. Each type becomes progressively more challenging to carve on the CNC. Single- and two-sided CNC 3-D carving are the most straightforward, and these are covered in the practice project chapters. Full in-the-round models, such as a car, can sometimes be carved using a multi-sided carving setup on a 3-axis CNC, but other 3-D models require a 5-axis CNC machine and advanced CAM soware.

Using 3-D models

CNCs excel in their ability to cut complex shapes, and this includes 3-D models, Image 2.5. There are some limits, but the first thing to understand is that 3-D models fit into one of three groups. The first is

Image 2.6: One bonus of using VCarve Pro is that it comes with a large collection of 3-D clipart models that can be dragged into the design area and quickly scaled to fit your project.

CNC compatible 3-D clipart models are also available from many sources on the Internet.

3-D clipart

Part preview

Image 2.5: A 3-D model creates a part that appears sculpted or carved.

3-D part

3-D drawing