Alternate Parts
Mini v1
Developer Front Plate
Breakout Front Plate
Mini v1/v2
50mm Light Fan Mount
All Models
Thumbstick Mount
Hardware Modifications
The following hardware modifications are natively supposed by the OpenScan Composer firmware.
Mini v1
GPIO Header
End Stop Switches
Motor Power Disable
Mini v1/v2
Ringlight/Case Fans
All Models
Thumbstick Controller
Hardware Modifications
WARNING: Performing these modifications incorrectly will destroy your device! Proceed at your own risk!
Mini v1/Classic (GreenShield) – GPIO Breakout Header
For easier modding, solder either a male or female pin header to the GPIO terminals on the reverse side of the board.
Mini v1 (GreenShield) – End Stop Switches
End stop switches can be added to the device in order to improve calibration and protect the hardware by detecting when the rotor has reached it’s rotation limit in either direction.
Thumbstick Rotor/Turntable Control
OpenScan Composer supports the addition of a small thumbstick for manual alignment of the rotor/turntable.
You will need an XBox type thumbstick, an I2C compatible Analog To Digital Converter (ADC), and a mini breadboard on which to build the controller circuit.
Mini V1/V2 – Ringlight/Case Fans
OpenScan Composer supports the addition of two 3.3v, 5v, or 12v fans to mitigate heating of the ringlight and raspberry pi/shield. Fans are automatically controlled via two GPIO pins. Since these pins are unable to power a fan on their own a transistor based switching circuit must be added to power each fan with the correct voltage.
Each fan requires the addition of a resistor, a transistor, and a diode.