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A Tinkerer's Guide to CNC Basics

A Tinkerer's Guide to CNC Basics

By : Najia
4.7 (10)
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A Tinkerer's Guide to CNC Basics

A Tinkerer's Guide to CNC Basics

4.7 (10)
By: 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)
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11
Chapter 11: Building a More Capable CNC Machine

Fabrication

After several iterations, I was able to settle on a set of components for the project. Here is an image of all my attempts to get this right.

Figure 9.8 – Parts from the prototyping effort

Figure 9.8 – Parts from the prototyping effort

Once you have all the parts fabricated, you can go ahead and do some test fitting before assembly. Here is my frame (I decided I don’t need the “tail stock” portion of this for my purposes).

Figure 9.9 – Test-fitting the axis frame

Figure 9.9 – Test-fitting the axis frame

You can see how I had to do a lot of filing to get everything to fit properly, but that’s only because the tolerances are so tight. You can always experiment by changing the scaling to go down by fractions of a percent, but that seemed like a long and drawn-out process when I could get things done faster with some post-fabrication trimming.

Here is a parts list for the 4th axis. You should be able to use any NEMA 17 stepper motor, and you are likely to have...

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