This project was born from the need of my brother Fabio, researcher in Biology at the Pisa University. He was looking for an easy way to acquire primate bones 3D models for his research.
Rear View. Arduino controller exposed.
So I developed this little photogrammetry turntable, based on Arduino UNO controller and mounted into a DVD casing (for prototyping, hope to 3D print a dedicated case soon!).
Circuit just before case installation.
It's very simple in its structure and use. Easy to open for components upgrade/replace.
It has an ON/OFF switch, a start and reset button and a 3-way mode switch. This switch put the turntable in Pause, Coarse or Fine mode changing the steps that the plate do to complete a 360° turn. There are also a 5 led "status bar" for monitoring the 360° turn progress and a Green Status led (blinking for "waiting input status" and still for "operation in progress status"). The servo used in this project is a DS04-NFC 360° continue rotation servo motor. Its stepping has been modulated via PWM and relative duration. Our weight upper limit was about 2 Kg, so this servo specs were perfect for this purpose.
Circuit has finally been soldered on a 40x60 mm double-side PCB board.
The turntable can work with a 12V 1A power supply or with a 9V transistor battery.