BenchMoto G1 — Enclosure for an Open-Source Motorcycle GPS Gauge

The 3D-printed enclosure for the BenchMoto G1 — an open-source, battery-powered GPS instrument that magnet-mounts to a motorcycle tank. It houses a custom ESP32-S3 PCB and a 2.1" round sunlight-readable display, and shows GPS speed, heading, altitude, and trip data with an analog-gauge look.

This is the enclosure only. It's part of a full open-source hardware project — the PCB, firmware, and complete build are linked below.

▶ Demo video:

── What's in the box ──

• chassis — main body, holds the PCB and takes 6 heat-set inserts

• bezel — front retainer over the display

• display_spacer — sets display depth behind the bezel

• foot ×3 — TPU magnet bumpers (one per magnet; grip the tank and protect paint)

• user_button ×2 — TPU flexible button covers

── Print settings ──

• Rigid parts (chassis, bezel, spacer): PLA works, but if your bike sits in the sun print in PETG or ASA. A black enclosure on a steel tank can approach PLA's softening point and creep under magnet and screw load.

• Feet and button covers: TPU (flexible — that's the point).

• 0.2mm layers, ~15–20% infill are fine. No supports needed for the rigid parts as oriented.

• 6× M2 heat-set inserts go in the chassis.

── What else you need ──

This holds real electronics. To build a working unit you'll need the PCB (order it from the OSHWLab project), a 2.1" Newhaven round display, an LC76G GPS patch antenna, a 1S LiPo, three 8×3mm neodymium magnets, and M2 hardware. Full bill of materials and assembly notes are in the GitHub repo.

── Full project ──

• PCB design (schematic, layout, BOM, gerbers): https://oshwlab.com/jlcnak2a/project_sgxgcnrl

• Firmware + build docs + BOM: https://github.com/tolerancestack/benchmoto-g1

── License ──

Hardware/enclosure: CERN-OHL-S v2 (strongly reciprocal — share your changes).

Firmware: MIT.

Part of the BenchMoto ecosystem of open-source vehicle instrumentation.