designing 3D-printed enclosures for electronics

From Fusion 360 to the print bed — creating custom housings for microcontrollers, sensors and hobby projects.

The design workflow

It starts with measuring the PCB and connectors. I model everything in Fusion 360, adding tolerances for a snug fit. The parametric approach means I can adjust wall thickness or port cutouts in seconds.

Print settings that matter

Layer height, infill, and wall count have a direct impact on fit and durability. I typically print enclosures at 0.2mm layers with 3 walls — strong enough to protect components without wasting filament.

Iteration and finishing

The first print rarely fits perfectly. I keep a caliper nearby and iterate fast — usually 2-3 revisions. A light sanding and a coat of primer transform a rough FDM print into something that looks intentional.