Available to download on Cults3d - Click Here
 
✈️ Description of the Creation
Bring a new level of realism to your Cessna‑style home cockpit with this Version 2 Start/Magneto Switch. Designed specifically for DIY flight sim builders, this unit features:
 
Fully functional barrel key lock
Five authentic detent positions (OFF – R – L – BOTH – START)
Spring‑loaded START position that automatically returns when released
Only 4 printed parts, making this an extremely simple and fast build
Compact and durable design ideal for tight panels or portable trainers
 
This refined V2 release focuses on reliability, accuracy, and ease of customization—resulting in an essential upgrade for any C172‑style cockpit.
 
🧩 What Makes This Design Unique
 
This version has been rebuilt from the ground up with true adjustability in mind. Because DIY builders often purchase different key barrels—especially inexpensive units from China that may vary by 1–2° in rotation—you now receive:
Editable CAD files to fine‑tune rotation alignment
Print‑ready STL files for immediate production
Improved housing geometry for smoother feel and stronger detents
To ensure perfect alignment across varying hardware options, 3D‑print‑only versions have been removed. CAD access is now essential and included.
 
📦 Included Files
This download contains digital files only:
✔️ Fully editable CAD source files
✔️ Optimized STL print files
❌ No physical hardware included
❌ No pre‑assembled switch included
 
All additional hardware is listed in the build guide below.
 
🔧 Build Guide & Hardware Reference
 
For tooling, wiring, and hardware requirements, please refer to the detailed build guide:
👉 https://www.737diysim.com/build-guides-1/c172-start-switch
🛒 Prefer a Fully Assembled Unit?
A ready‑to‑install, professionally built version of this switch is available here:
👉 https://www.737diysim.com/product-page/c172-fuse-panel
 
💡 Context of Use & Limitations
This model is intended for:
Home cockpit builders
GA flight simulation setups
C172‑style panels and legacy Cessna variants
Builders seeking mechanical realism without complex assembly
Limitations:
Designed for 3D printing and hobbyist hardware—not certified for real aviation use
Builders must adjust CAD rotation to match their chosen barrel lock
Requires basic DIY skills and simple tools