Arduino PID Balance Beam
Description
This is a balance beam model that is used for an Arduino balance beam PID project. The model can be assembled using m3 and m4 screws (m3 only for the pivot pin, sensor end cap, and Arduino board to connect to the board base). Short m4 screws are used for the breadboard brackets and slightly longer m4 screws are used for the rest, but it is up to you how you assemble it. The only things that are glued together are the rails, rail ends, pivot, and pivot pin to the pivot. Everything can be glued together if you want. When I tested it, my sensor required me to put paper walls on the rails to reduce outside interference. You can see if you need to add walls, too, and even change the rail STL to include walls using CAD software. Print the rails with as little infill as possible, but the rail end (without the sensor) can be printed with 100% infill to act as a counterbalance. Use at least 3 walls for all parts so they do not crack when using screws. Print the pivot pin vertically so it can easily rotate in the base. Use at least a 0.12mm layer height for the pivot pin so it can be inserted into the servo motor mount. You can use PLA, PLA+/Pro, or better material. Don't use matte PLA since it can break after many test trials (which happened before). HEAVILY RECOMMEND USING MG90S SERVO (OR ANY METAL SERVO OF THE SAME SIZE) SINCE A PLASTIC SERVO CAN BREAK FASTER ELECTRICAL TAPE ON THE RAILS CAN HELP IF THE BALL ROLLS TOO FAST
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