CNC Machining vs 3D Printing - Which Do You Need?

Learn what the differences are between CNC machining and 3D printing in order to find out if CNC machining or 3D printing is a better choice for your design. For instance, is CNC cheaper than 3D printing? Find out in this video.


00:00 Introduction to 3D printing vs CNC machining. What is 3D printing and what is CNC machining? And what is the main difference between CNC machining and 3D printing? (when it comes to producing parts)

01:53 Second, dimensional accuracy. Here we’ll go over how CNC machining and 3D printing differ in dimensional accuracy

02:47 Third, materials. In this section, you’ll learn about how CNC and 3DP are different in regards to the materials they can machine and print. You’ll also learn what the impact of the combination of materials and technology can be.

03:55 Fourth, model complexity. For both CNC machining and 3D printing it’s important to consider their design limitations. In this section, you’ll find out more about the differences between those for CNC and 3DP.

05:00 Fifth, post-processing. Both CNC machining and 3D printing have several post-processing options. However, there are some differences.

05:30 Finally, manufacturing workflow. In this last section, we’ll discuss what happens differently for CNC machining and 3D printing after an order is placed.

06:21 Rules of thumb. Finally, we’ll go over what we learned about the difference between CNC machining vs 3D printing.


Protolabs is the fastest and most comprehensive digital manufacturing service in the world, combining in-house quick-turn factories and premium manufacturing partners at Protolabs Network. Users can easily upload their design, instantly receive a quote, and start production at the click of a button.


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