Book Image

A Tinkerer's Guide to CNC Basics

By : Samer Najia
5 (1)
Book Image

A Tinkerer's Guide to CNC Basics

5 (1)
By: Samer Najia

Overview of this book

Until recently, Computer Numerical Control (CNC) machines belonged to the realm of heavy industry, but as technology becomes cheaper and smaller, these machines now can be used in home workshops. It’s not easy to get started, though, but thanks to this guide, you’ll be ready to take on a variety of projects in no time. A Tinkerer’s Guide to CNC Basics contains everything you need to get set up at home with computer-controlled machining and fabrication. Sparing you the theory, this project-laden guide helps you learn by doing. Once you’ve got to grips with the principles of CNC and installed the 3018 Pro CNC machine, you’ll gradually move from simple projects such as basic engraving to more complex milling and machining techniques. You’ll even learn how to upgrade your machine to accomplish more sophisticated designs. The plethora of projects in this book will keep you busy and give you the practice you need to get started with your computerized workshop. By the end of the book, your computerized home workshop will be one step closer to realization, and your machining skills will be taken to the next level.
Table of Contents (15 chapters)
11
Chapter 11: Building a More Capable CNC Machine

Buying a pre-built unit

Once a selection is made, don’t rush off and buy it just yet from the first vendor you see (for a pre-built unit). Instead:

  • Comparison shop and be open to giving up a nice-to-have feature (such as a dust vacuum head) out of the box in favor of a substantially lower cost.
  • Consider the frame materials used; not all 3018 machines are alike. Some use aluminum extrusions, some use thick acrylic panels, and others (the more expensive ones) use aluminum panels for the gantry. Considering the materials you will be milling, is a less rigid machine (with acrylic or melamine parts) acceptable? What happens if the acrylic cracks? Will you be able to replace it?