Add-on dossier
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
Rehrig documents total-internal-reflection lens work intended to focus emitter output and shape the optical behavior needed for the laser-tag game.
Badge context
InfoconDB source for THOTCON 0xC dates, May 19-20, 2023, unknown-location framing, and official con-page link.
Rob Rehrig source for the Contra theme, conference-wide laser-tag concept, custom housing design, clear polycarbonate production decision, IR receiver/emitter layout, TIR lens work, Xometry manufacturing path, and roughly 2,000-badge scale.
Fourfold source identifying the THOTCON 0xC badge as a full-assembly/manufacturing project from bare PCB to polished conference-electronics product.
Official THOTCON archive source for May 19-20, 2023 Chicago dates, badge/swag check-in, and badge-required party entry at Ravenswood Event Center.
Source trail
Maker portfolio source for the 0xC badge's full assembly, manufacturing, protective-enclosure, and conference-electronics production framing.
Event metadata source for May 19-20, 2023 dates and unknown-location context.
First-hand badge-team source for the Contra theme, laser-tag function, enclosure and lens design, injection-molding decisions, Xometry production path, and physical-layout evidence.
Official event source for the May 19-20, 2023 Chicago edition, badge pickup, and party-entry badge requirement.