Turret Mechanism

thingiverse

This is an uncomplicated, mostly printed turret mechanism utilizing hardware comparable to 3D printers. I've designed it to utilize NEMA 17 stepper motors and V-wheels as bearings for rotating components. I created this, and authored the corresponding control software, to better comprehend some concepts from a Robotics class that I'm attending. I hope others will find it useful! The shaft has been designed to accommodate various attachments, such as webcams or other robot joints. Code is available here: https://github.com/PAJohnson/Turret Required hardware: 8x M5x25 bolts for V-wheels and the top shaft 8x M3x6 bolts to mount the stepper motors 2x M5 washers for the top shaft 8x 24mm Diameter V-wheels 2x Nema 17 stepper motors Assembly: Attach the shaft stepper motor to "Turret_top" and press one of the stepper motor gears onto the stepper motor shaft. Ensure that the direction of the stepper gear is correct so it meshes with "Turret_Shaft". Press the V-wheels into "Turret_top" as shown in the picture. When installing "Turret_Shaft", place M5 washers between the shaft piece and the top piece before screwing in the M5 bolts to hold the shaft. Attach the base stepper motor and press the other stepper motor gear onto the motor shaft. Ensure that the stepper gear is oriented correctly to mesh with "Turret_base". For the V-wheels that roll on the inner race of "Turret_base," a bushing from "Turret_bushings" goes between each V-wheel and "Turret_top." Secure the V-wheels and bushings to "Turret_top" with M5 bolts.