Photogrammetry Table with Phone Mount

thingiverse

Used the design by user Silent_Bob (https://www.thingiverse.com/thing:1826589) as a base for the rotating table, modifying it to accommodate the bearing I had on hand. Created a custom phone mount to eliminate the need for manual photo capture, utilizing the same platform to run software that captures pictures at fixed intervals. The only component requiring supports is the phone mount; users can slice and print individual parts, gluing them together later to minimize support requirements. The clip at the bottom of the mount needs some cleaning up after printing, but it's a simple process to test whether a single-piece clip can be printed for future hose clamp applications. All other components printed without issue. The table rotates as a servo presses the volume button on my phone, taking a picture each time. My LG G5 requires adjustments to the mount, which may need to be modified to fit various phones. Initially working on a modular design, I opted for a quick solution to get results quickly. A marking on the table assists photogrammetry software in detecting rotation, allowing COLMAP and meshlab to generate accurate results. Materials used include: Bearings sourced from an abandoned skateboard Stepper Motor: 28BYJ-48 Motor Driver: ULN2003A Servo: SG90 Arduino: Utilized an Elegoo board for this project The Arduino code is straightforward, simply rotating a few steps per picture based on the desired interval, waiting for camera focus, moving the servo to take a picture, and repeating this process.