Electrium Mobility's electric cargo bike ("Bak Choy"), Fall 2026. This repo holds everything from the 2024 build and the 2025 co-op CAD.
Open ONBOARDING.md. Everything you need is there, starting with a short to-do list at the top. Setup takes about 2 to 3 hours. Questions go in your subteam's channel.
| Folder | What's inside | Start with |
|---|---|---|
mechanical/ |
All SolidWorks CAD | mechanical/README.md |
mechanical/cad-2025-coop/ |
Newest model (May 2025), matches the partly built bike | bakfiets_main_asm.SLDASM |
mechanical/cad-2024/ |
The 2024 design: frame, steering, kickstand, cargo box, welding jig, notching guides, FEA study | Assem1.SLDASM |
electrical/ |
The 2024 block diagram and notes on reusable boards | electrical/README.md |
firmware/ |
Display code, a ready-to-run desk demo, the CAN bus example | firmware/desk-demo/desk-demo.ino |
docs/setup/ |
Extra setup detail and videos for each subteam | 2-mechanical.md |
docs/term-projects.md |
The main goals for the term, for after onboarding | |
docs/reference-projects.md |
Other Electrium repos worth copying from | |
docs/meetings/ |
Agenda and notes for each team meeting | 2026-09-30.md |
docs/diagrams/ |
Onboarding path, bike overview, team structure, how to submit, term project map (with the scripts that draw them) | |
docs/images/ |
Renders, CAD previews, photos | |
docs/history/ |
Old README, website pages, and where every file came from | SOURCES.md |
See Where It Stands and Open Questions in the onboarding guide. The main goals for the term are in docs/term-projects.md.
- Work on a branch and open a pull request. Don't push straight to
main. - Don't move or rename SolidWorks files inside
cad-2024/orcad-2025-coop/. Assemblies find their parts by folder path, and moving files breaks them. - Put new work in a new folder, for example
mechanical/cad-2026/orfirmware/display-2026/. Copy CAD with SolidWorks Pack and Go, and only one person edits a CAD file at a time.