Robotics Vehicle Platform

thingiverse

These building blocks are designed to facilitate the creation of robotics electric vehicles in various sizes. They're ideal for autonomous/self-driving and general prototypes, among other applications. The structure relies on 25mm steel tube and inserts held together by 8/13mm bolts/nuts. The wheels are sourced from Bauhaus, featuring aluminum cores similar to those found in wheelbarrows. 22mm skateboard bearings power the steering setup. Smaller wheels from mountainboards can also be used for this purpose. The steering mechanism employs a servo, with the current design limited to around 50kg for practical steering using the chosen servo. However, an alternative design utilizing a stepper motor will address this limitation. I have a design for such a system available; please let me know if you're interested. The rest of the design has been proven capable of supporting over 200kg in a 1m x 1m setup with side tensioners. The drivetrain is based on my mid drive system, which can be found here: https://www.thingiverse.com/thing:2589187 The motor unit is designed to slide and enable automatic belt tensioning. Springs will be mounted to pull the motor slide away from the wheel. This system runs using a VESC 4.12 motor controller controlled by an ESP32 with Pacer, a framework I've developed for full control of the vehicle from a joystick or smartphone web app, among other interfaces.