DIY Wind Tunnel Part 3: The Flow Zone

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Sometimes off-the-shelf parts don’t exist—and that was exactly the problem with my DIY wind tunnel. To improve the airflow, I needed a laminar flow block for the back of the chamber. The problem? You can’t just buy one. So I designed and 3D printed my own solution.

This project had a ton of challenges: the tunnel space is bigger than my printer bed, I only had a single roll of filament to work with, and I had no guarantee the design would even improve the airflow. That’s the fun part of experimenting—success or failure, you learn something either way.

In this video, you’ll see how I designed the block in Fusion 360, sliced it with a honeycomb pattern to save filament, printed it in multiple sections, and finally tested it in the wind tunnel to see if the airflow actually straightened out.

📌 Topics covered in this video:
Designing a laminar flow block in CAD (Fusion 360)
Working around a limited 3D printer bed size
Saving filament with smart infill tricks
Time-lapse of the 3D printing process
Testing airflow improvements in a DIY wind tunnel

👉 Check out the tools and gear I use here:
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Fog Machine I use: https://amzn.to/45GXxCB
Variable speed fan: https://amzn.to/45aVJli
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The other things:
X-Wing Model: https://amzn.to/3USDYRz
Ahsoka's Ships: https://amzn.to/4ljafMo
Dremel Blueprint: https://amzn.to/3Uh9ad8
Articulating Worklight I might get: https://amzn.to/45cyQhn
Cool Lambo if you want: https://amzn.to/41LkxxT

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