CELLPHONE 3D SCANNER – Electronics Contest

pinshape

This is an automatic revolving platform for three-dimensional scanning with a cell phone along a 380mm diameter circle. The revolving mechanism is activated by a servo controlled by an Arduino board in a specific sequence, which makes pauses to activate the cell phone's camera using a Bluetooth remote control. The servo tower can be easily removed to activate the mechanism with a handle. The platform is too large to be printed in one piece. One of my goals with this design was not to use any glue or screws, only 3D printing. Therefore, I developed different types of snaps and shapes to attach parts together. Electronics components: * Arduino UNO R3 (M.Duino UNO R3) * YWRobot Relay (you can use a 2-channel relay, but I only had a 4-channel one in my hands) * Generic Bluetooth smartphone selfie remote control * TowerPro Micro Servo 9g (I converted the servo to enable continuous turning) You can find the parts list with data such as printing time, estimated filament needed, pricing, and number of pieces needed for each part. The numbers of the pieces are referenced in the 3D rendering of the separate parts. You can also download the Arduino code from the files provided. Assembly experience: I have tested each snap and assembly on partial prints, and they all worked fine. However, when printing larger pieces, it affects the temperature, and therefore, the prints may not be exactly as those tested. I had to file some of the round snap knobs (the long ones) to prevent them from breaking when snapping them with other parts. When assembling the top ring, putting the snaps together only rigidifies when both sides are snapped correctly. Although I didn't want to use any glue, I chickened out on that top ring and put glue in the snap holes before inserting the small "C" clamps. If some turning parts are too snug, you can apply a tiny bit of Jig-a-loo and turn the parts to spread and dry it. Here is a video of it in action and the result model: https://youtu.be/3Wq3vU6Ea6A Enjoy!