Radiomaster GX12 SA SD Switch mod
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Change for SA SD switches from momentary to two pos switches - better for arming and flip after crash switches
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Model information
- Source
- Printables
- Category
- RC & Robotics
- License
- Creative Commons — Attribution
Radiomaster GX12 SA/SD 2-Position Switch Mod (Reversible)
This mod converts the SA and SD buttons on the Radiomaster GX12 into 2-position switches, making them much more convenient for functions such as arming, flight modes, beeper, or other frequently used AUX channels.
The modification is fully reversible and does not require any permanent changes to the transmitter. If you ever want to restore your radio to its original configuration, simply remove the printed parts.
Features
Converts SA and SD buttons into toggle 2-position switches
100% reversible – no cutting or drilling required
Maintains a clean, factory-like appearance
Lightweight and easy to print
Quick and simple installation
Instruction:
things you need - soldering iron, four small cables <5 cm, two toggle 2pos switches (i chose 5x8x8 1.5A 250V), small knife, tweezers
Remove the upper switch cover to access the area where the SD/SA button cover is glued in place, then carefully remove the button cover.
Disconnect and remove the main PCB from the radio enclosure.
Solder the replacement switch directly to the SD/SA button contact pads/pins on the PCB.
Reassemble the radio. The switch should fit within the available clearance between the PCB and the upper switch cover.
After reassembly, configure the switch behavior in the radio settings:
SYS → Page 6 → SA / SD → set to “Toggle”
Print Settings
Material: PLA, PETG or ABS - TPU switches covers
Layer Height: 0.20 mm
Supports: Not required
Infill: 20–40%