8 photosPhoto 1 · No date found2025–2026 / Materials & heat
Titanium oxygen getters
Experiments in removing residual oxygen from a furnace chamber to protect its heated tungsten.
Photos 1–4, 8, 12–14
Explore projectSTEVEN BELL / ENGINEERING PORTFOLIO
Curiosity.
Made tangible.
Custom electronics and engineering prototypes.
I’m Steven Bell. I build circuits, optical instruments, test fixtures, and experimental hardware for personal research and contract projects.
Explore additional projects ↗A PROJECT ARCHIVE / 2011–PRESENT
I’m building a high-temperature furnace using tungsten resistance heating, with the goal of melting sapphire and ruby.
Inside this projectBuilt, tested, and documented.
37 personal projects10 contract projects17 journal entries
01 / PERSONAL EXPLORATION
From the workshop
A few starting points in an archive of experiments, prototypes, and things built by hand.
8 photosPhoto 1 · No date found
31 photosPhoto 100 · No date found2021–2022 / Sensors & electronics
Water-quality monitoring
Optical instruments that compare the light transmitted through water samples, from bench prototypes to a radio-connected river deployment.
Photos 100–123, 310–313, 318, 359–360
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2 photosPhoto 180 · No date found2016 / Optics & light
Tabletop Michelson interferometer
Adjustable optical mounts for splitting and recombining a laser beam to produce an interference pattern.
Photos 180–181
Explore project02 / CONTRACT ENGINEERING
Work on practical problems
Projects in sensing, electronics, optics, and mechanical systems.
10 photosPhoto 214 · No date found2019 / Optics & light
Optical balk-alert prototype
A modulated laser and pocket receiver explored as an aid for detecting a player crossing a defined line.
Photos 214–223
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5 photosPhoto 225 · No date found2019 / Sensors & electronics
Magnetic-field measurement rig
An adjustable coil-and-sensor rig developed with magnetic-field simulation and oscilloscope testing.
Photos 224–227, 484
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3 photosPhoto 230 · No date found2019 / Tools & mechanisms
Remote-controlled adjustable-pitch fan
A custom mechanism and handheld control system for changing both fan speed and blade angle.
Photos 230–232
Explore projectLET’S BUILD SOMETHING
Have a prototype in mind?
Custom electronics, optical sensors, mechanical test fixtures, and experimental fluidics. See how my experience could fit the thing you need to make.