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This basic version of the SG-1 gate is static (no motorization) and much easier to build than the full version.
You can download the specific 3D models for this Milky Way gate directly or via MakerWorld:
Hardware Differences
The core circuit and the PCB are exactly the same as the Pegasus model. However, there are two main differences for this build:
- LED Strips: This gate requires only two NeoPixel strips instead of three (no glyph ring). Cut them to 36 LEDs for the event horizon and ~44 LEDs for the chevron ring — trim any excess during assembly to fit your printed parts. Full breakdown on the BOM page.
- Sound Effects: The microSD card requires the specific SG-1 sounds.
🔌 Which PCB — V1, V2 or V3?
This gate can be built either way — separate strips, or one single continuous strip — and all three boards can drive it. The board photo above shows the V1, which is simply the one most builds have used so far — it is not a requirement.
- PCB V1 — three LED outputs (chevrons, glyphs, event horizon). Using one single strip on a V1? Plug it into the chevron connector specifically.
- PCB V2 and V3 — one single LED output. Plug your single strip straight in. V3 is the same board as V2 with a barrel jack instead of USB-C.
Does anything else change? No. Same ESP32, same DFPlayer Mini, same sound pack, same calibration, same DHD. The only difference is on the Flash a Gate page, where you pick Single LED strip instead of Multiple LED strips. Nothing in the assembly steps below depends on which board you chose.
General Assembly
Since the circuit and the general logic remain identical, you can follow the exact same assembly steps as the Pegasus gate!
Just remember to select the SG-1 firmware instead of Atlantis when flashing your ESP32 at the end.
