Читать книгу CNC Router Essentials - Randy Johnson - Страница 29

7

CNC Router Essentials

Toolpath Essentials : 3

Profile cuts can be used to cut partly or completely through your work, Image 3.10. Think of it as a saw blade or dado blade that makes a cut partially or completely through the material. It is commonly used to separate the part from the surrounding material or to create grooves and slots.

With these four types of CNC cuts, you can create a variety unique projects. Yet, we've only scratched the surface of what can be done with these cuts, as there are many other ways they can be used to enhance your CNC projects.

Cutting direction

Climb cuing with a handheld router or router table (moving in the same direction the router bit is spinning) can be dangerous since the bit can grab the material and

Image 3.7: The V-Carve/Engraving Toolpath uses a V-bit to create decorative incised carving. It works equally well on text and non-text line designs.

Image 3.9: A spiral ballnose bit is used to complete the finishing pass on a 3-D carving. Small-diameter ballnose bits taper up to the diameter of the shank to provide added strength to the cutting flutes.

Image 3.8: Most 3-D carvings are cut in two steps. The first step is the roughing toolpath, which is often done with a straight or spiral bit to quickly remove the majority of the material.