This Raspberry Pi-operated 3D scanner generates a surface mesh by parsing snapshots of a line laser's deflection on a rotating object. To create a functional scanner, I took inspiration from Micheal Xiao's Raspberry Pi Laser Scanner project and applied functions from the FabScan module.

With a project containing multiple components, I focused on the wiring and functionality of each system separately. The 3D Laser scanner makes use of a Raspberry Pi, Pi Camera V2, line laser, motor driver, stepper motor, LED, and LED momentary button.

To connect the LED momentary button, I followed the schematic for wiring an LED with a resistor in series. On the same breadboard, I wired the line laser to the Raspberry Pi. Finally, I attached the stepper motor using the L298N driver and an external 5V DC power supply. Each system is connected with a 1000 ohm resistor in series to protect the Pi's GPIO pins.

For my second milestone, I added a structure to the 3D laser scanner. Six laser-cut wood sheets create a container with two compartments. The purpose of the box is to prevent light from interfering with the line laser. To avoid scattering the laser's beam, I painted the interior of the case matte black. In the lower compartment of the box, the raspberry pi, motor driver, and breadboard systems stay hidden. A slit on the back sheet allows an HDMI cord, external 5V DC power source, and Raspberry Pi power supply to access the lower compartment.

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