Macro close-up of a matte black 3D printed fan grill with low-key single-source lighting and a subtle blue ambient glow.
Macro close-up of a matte black 3D printed fan grill with low-key single-source lighting and a subtle blue ambient glow.
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Build Log 03

Solder Fume Extractor

An automated workbench companion utilizing VOC sensor thresholds, magnetic filter cartridges, and an ESP32 controller to keep workspace air clean.

Technical Specs

Engineered for clean air

VOC

Sensor-driven fan speed

ESP32

Smart home integration

3-Stage

Magnetic HEPA filtration

Assembly Guide

The build sequence

01
02
03

Print the housing

Wire the controller

Seat the filters

Slice the main chamber with three perimeters in matte black PETG. No supports required for the internal guide vanes.

Connect the MQ-135 sensor and the 12V PWM fan directly to the ESP32 dev board using custom harnesses.

Drop the magnetic carbon and HEPA cartridges into the intake. The magnetic seal prevents any dirty air bypass.

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Replicate this build

Access the complete repository containing fully documented wiring schematics, STL print files, and the ESP32 automation source code.