Brian Keith Bell

Category Archives: Lasers

N2 TEA Laser Build – Part 4: Circuit & Safety Wiring

Circuit & Safety Wiring. The most critical step now is the wiring. We need to complete the Blumlein circuit and, most importantly, prepare the wiring for the Safety that makes this kit more suitable for classrooms, etc… Triple-Threat Safety Imperative: READ THIS FIRSTTHIS PROJECT INVOLVES THREE DISTINCT LETHAL/HARMFUL HAZARDS. DO NOT ATTEMPT REPLICATION WITHOUT ADVANCED HIGH-VOLTAGE EXPERIENCE AND PROPER VENTILATION.1.  Lethal High Voltage: The  circuit is lethal. NEVER touch the circuit when power is applied. All components must be contained within a grounded, non-conductive enclosure with safety interlocks before operation.2.  Harmful UV Radiation: The laser emits deep ultraviolet () light (around ). This radiation is invisible, damaging to the retina, and can cause skin burns. NEVER look into the beam or at the spark without certified UV-blocking eye protection.3.  Toxic Ozone Production: The high-energy discharge generates ozone () gas (a toxic air pollutant). Operation must be limited to short bursts and always performed in a well-ventilated area or under forced exhaust. Classroom Use: Replication in any educational setting requires direct, professional supervision and a fully interlocked safety enclosure system.

N2 TEA Laser Build – Part 2: The 10 kV Concept

N2 TEA Laser Build – Part 2: The 10 kV Concept – Okay, I’m ready to pull back the curtain! I’m building a Nitrogen (N2) TEA (Transversely Excited Atmospheric) Laser. This is a high-performance physics experiment that relies on a single principle: speed. We use 10,000V to create an electrical pulse so fast it tricks the nitrogen gas (present in the open air, in this case) into emitting an invisible UV laser beam.. More here: https://techbravo.net/n2-tea-laser-build-part-2-the-10-kv-concept/

N2 TEA Laser Build – Part 1: What Is That?

[latexpage] The workbench is getting weird this week. (Yes, that’s my Thunder Laser engraver, I know, I know—it’s not supposed to be a workbench! 😅) This is the first in a series of posts where I break down the science and build a ‘Trophy-Worthy’ high-voltage device. I’ve got steel, copper, aluminum, magnets, switches, some wiring, […]

Thunder Bolt Head Camera

I had originally tested LightBurn’s Head Mount camera function on my Thunder Nova 35-80 and never got to test it fully. This was early on and was the v1.2 beta, more info on that implementation can be found in this Thunder Laser USA Knowledgebase Article: Head Mounted LightBurn Camera.   So I figured since LightBurn public release […]