3D-Printed PC Case

I designed and printed a complete small-form-factor PC case from scratch. Every panel, bracket, and vent was modeled in Fusion 360, optimized for airflow, and printed in PETG and carbon-fiber-reinforced filament. The goal was simple to say and hard to do: a case that runs cooler, sounds quieter, and looks calmer than anything I could buy.

It turned into a deep dive on tolerancing: the difference between a panel that snaps in with a satisfying click and one that rattles is a fraction of a millimeter, and the printer doesn’t forgive wishful thinking.

What went into it

• Custom mounts for the AIO liquid cooler, positioned for straight-through airflow.
• Hidden cable channels routed through the frame, so the finished build has no visible wiring.
• Addressable RGB lighting handled by a microcontroller I wired and programmed myself.
• Print-friendly part design: each piece prints without supports and assembles without glue.

How it turned out

The finished build runs cooler and quieter than the off-the-shelf case it replaced, and it’s far easier to work inside. More than any other project, this one taught me how mechanical design, fabrication, and electronics have to negotiate with each other, lessons I now apply to every physical product I build. Photos of the build are coming once I reshoot it properly.