Original design

3D-Printed Bench Fume Extractor

A compact bench extractor designed around a 12 V fan, printed enclosure, and a first pass at simple control electronics.

Why I built it

I wanted a practical bench tool and a short design-and-build problem during an exam week.

My contribution

I designed the enclosure in Inventor, printed and assembled it, then started integrating the Pico-based electronics enclosure.

Main constraint

The first version had to fit around a 12 V fan within a one-week exam-period build window.

Observed result

The fan drew 300 mA at 12 V (3.6 W). In bench use, it captured loose smoke roughly 15–30 cm from the intake; formal airflow testing is still pending.

What fell short

Seam leakage reduced capture, and the Pico electronics enclosure remains unfinished.

Next iteration

Add TPU gaskets, finish the electronics enclosure, and run a repeatable airflow test.

Owned evidence

At the bench