Twenty LEDs. An unreasonable amount of ceremony.

What if the Voron Design Team released an official computer build?

They didn't. Because they're too smart for that. We, however, own a 3D printer.

Watch “The Computer They Didn't Make” on the BC250 project page. The new 89-second instrumental commercial adds twenty seconds of reading time across its captions and contributor cards. It ends, with suitably limited commitment: Don't count on it... soon™.

This is an independent, unofficial thought experiment, with no Voron endorsement. Ronin's product geometry comes from the updated assembly. The maker-desk scenes combine native case and official Voron V0.2r1 CAD renders with generated room and person backgrounds; they are not photographs of a finished enclosure or proof of CAD/slicer performance on the BC250.

The film and image archive keeps both original commercials, the earlier RGB showcase and all four original website stills available alongside this revision.

The actual lighting change

The old LED rings and foot strip are gone. The current SolidWorks assembly has two Rainbow on a Matchstick boards by Blamm, carrying ten addressable RGB LEDs each, with matching printed diffusers. These twenty LEDs are the case's only auxiliary RGB lights, intended to be controlled through the ESP32-P4 touch display. The display still has its own backlight. The main power button also has a fixed neutral-white integral ring; it is a power indicator, separate from the two auxiliary RGB boards.

The render now follows those boards' CAD positions. The opaque PCB and sheet-metal backbone block light; the useful glow escapes through gaps and perforations and diffuses through the printed parts. Brightness in the film is an artistic rendering choice, rather than a measurement of the physical boards' output.

The revised cut shows the lit power-button ring and adds a close view of the rear cover's hexagonal vents. Bestagons deserved their moment.

Clear filament, frosted parts

The material is 3D-Fuel transparent PCTG, without a tint. Printed PCTG still scatters light, so the rendering keeps a frosted surface and visible 0.20 mm layer lines. White, cyan, magenta, mint and rainbow color studies all use the same material; the RGB LEDs create the color.

The large rear cover's print orientation is still being worked out on the Prusa CORE One+ INDX. Upright sections would suit the preferred layer direction; a split introduces a seam, while the one-piece tilted-fit trial leaves very little build-volume margin. That is a fabrication decision still to make, not a completed print.

The genuinely good additions

The commercial can be silly about the project. These parts deserve straightforward credit:

• Rainbow on a Matchstick by Blamm: two boards, ten RGB LEDs on each. They replace every previous auxiliary RGB source.
• Mosfet.Party's EPS Power Adapter and PS_ON adapter: the dedicated power-distribution and PSU-enable boards used for the integration.
• MandicReally: the source CAD behind the single 92 mm fan-shroud remix, credited to that part specifically.

The build also uses dual ARCTIC P9 PWM PST 92 mm fans, an ESP32-P4 touch display, a 1 TB Sabrent Rocket Gen4 NVMe SSD, and an Apevia 500 W SFX power supply. The NVMe layout puts the drive in the intended main-fan airflow path. Four USB ports sit on the right side, and magnetic covers are designed to be easy to remove.

The M.2 splitter targets storage plus Wi-Fi 7 and Bluetooth LE 5.3. The exact wireless card and completed host compatibility tests are still to be documented. The display's radio is a separate component; neither the splitter nor a render demonstrates those wireless capabilities working.

The revised film animates the screen with the display's genuine installed day loop and reconstructs the current resource-panel GUI from its source-defined layout and LVGL fonts. The resource fields show the firmware's "--" startup/offline placeholders, rather than invented readings. A short, synchronized piece of the loop's original audio sits quietly within the instrumental score. Older static and lifestyle stills retain the previously supplied GUI reference artwork.

An October 3 hardware check also confirmed that the existing resource helper sends live readings to the physical panel through its UART0 USB-serial connection, with Windows temperature supplied by LibreHardwareMonitor. This used the existing firmware; the planned display functions and full companion app remain future work.

Display roadmap

The ESP32-P4 panel already receives CPU, memory and disk readings over USB serial and plays its local animated scenes with audio. The next firmware work gives that small screen four more jobs; these features are planned, not completed:

• Voice companion: use the panel's onboard microphone and amplified outputs for external speakers as the listening and speaking interface for a companion. The complete voice workflow still needs implementation.
• ARGB controller: control the two ten-LED Rainbow on a Matchstick boards from the touch interface, with colors and effects for all twenty LEDs.
• Gamepad wake of the host: use the controller to wake or start the BC250. Display connection-wake experiments are separate; they do not yet operate the host's power signal.
• Touch shortcut pages: Stream Deck-like button pages that dispatch configured host scripts or commands according to the selected app/program, page or display screen. The context selection, action dispatch and host integration still need to be built.

The manufacturer audio lesson documents recording and speaker playback hardware. The current Bluetooth work demonstrates scanning/pairing experiments, rather than reliable host wake or controller handoff. Existing local touch controls and sound playback do not yet constitute the voice companion or shortcut system.

Planned Windows/Linux companion app

An initial local source prototype of the desktop companion now provides explicit legacy telemetry connection controls, a live host-monitor view, and local editors for twenty-pixel LED scenes, touch profiles and agent endpoint/model settings. Those editors save host-side configuration; they do not apply new functions to the panel, execute configured scripts or connect to an agent portal. Physical LED/profile/voice integration and Windows/Linux installers remain planned.

The existing Python resource companion sends host telemetry to the display over USB serial. It is the working resource-monitor helper, rather than the full app described below.

The planned Windows and Linux app will bring the configuration together:

• Advanced LED animations for the two Matchstick boards.
• Installation and activation of resource-monitor modules.
• Touch-button profiles and configured script, command and program integrations, with actions selected by app/program, page or display screen.
• Configuration of the AI-agent portal connection used by the companion workflow.

This full configuration app and its display/host integrations are future work. Existing telemetry and local media playback are not being presented as implementation of those new functions.

Planned printing and assembly manual

After the protected preview update, the next deliverable is an illustrated printing and assembly manual, before the new display-firmware work. It will use original illustrations derived from Ronin's CAD, efficient and clear print/build steps, a little workshop humor, and a lavender-and-sakura palette. The first edition will be iterative as the CAD is finalized. A complete CAD-driven bill of materials, with accurate part numbers and sources, is required; additional components still need to be added before final exploded diagrams and assembly details can be checked. The goal is the readability of a good community build manual, with no Voron artwork, copied assets or official affiliation. The manual and complete BOM are planned, not completed or validated against a finished enclosure.

Where Ronin stands

The internals and resource display are working, with an initial cooling check documented. Enclosure fabrication, revised lighting integration and gamepad startup remain unfinished. Community BC250 builds demonstrate the platform's Linux-gaming potential, but their results are not benchmarks of the finished Ronin enclosure.

The cost figures are unchanged: roughly $375 spent so far, an estimated $275 one-off metal part, and a small-batch target rather than a confirmed production quote. The case study keeps the component details, display measurements and build status together; the original BC250 article covers the wider reuse story.