In chapter 5 lesson 13, you’ll learn how to clean up your laser-cut parts and improve their surface feel using two main post-processing methods: tumbling and linear deburring. Jake explains how each process works, the differences in finish and edge quality, and when to use one method over the other depending on your material, part size, and desired result.

You’ll see how tumbling uses abrasive media to smooth and round edges for a soft, uniform texture, and how different media types affect the surface finish. Then, you’ll learn how linear deburring removes burrs and sharp edges using a sanding belt system, why it produces a flatter edge, and how part dimensions affect whether it can be processed successfully. Jake also covers key considerations like minimum part sizes, the difference between deburring and true finishing, and how each process prepares your parts for secondary operations like anodizing or powder coating.

What You’ll Learn:

• The difference between tumbling and linear deburring
• How tumbling media smooths edges and surfaces
• How linear deburring removes burrs using belt sanding
• The pros and cons of each method for different materials
• Why part size and geometry affect deburring results
• The difference between deburring and true finishing
• How to select the right deburring process for your design
• How deburring prepares parts for coatings and final assembly

Additional resources:

Tumbling Guidelines
Tumbling vs Deburring
Deburring Guidelines