Quantity   Component name
1 × Standard SAWPPY BOM https://github.com/Roger-random/Sawppy_Rover/blob/master/docs/Parts%20List.md
6 × CHIHAI MOTOR GM25-370 DC Gear Motor 6V 100 w/ encoders You can get these from AliExpress, Banggood, Amazon, eBay, etc.
2 × WAGO Terminal strip model 862-515 Breakout connections for routing power from the battery to the motor controllers, other boards, etc.
6 × WAGO 221-series wire terminals more breakouts for more connections
1 × 4mm spiral cable wrap Get this from Amazon or Grainger, etc. for cable control and routing all the little wires.
1 × Arbotix-M Controller board To control the Dynamixels
1 × Bosch BNO055 IMU Needed for autonomous roving, otherwise optional
1 × GPS Needed for autonomous roving, otherwise optional
1 × Various LiPO batteries: 14.8V 11.1V 7.4V to power different bits.
1 × Some sort of SBC: Raspberry Pi or Jetson TX or Nano. You'll need a bigger system if you're going to do any sort of autonomous operation and/or heavy computation.
1 × Depth Camera: Orbbec Astra, Intel RealSense, Kinect Needed for autonomous roving, otherwise optional
1 × Some sort of LIDAR
1 × HC-SR04 Sonar Sensors For short-range collision avoidance.
4 × Dynamixel AX-12A digital servo These are for the corner steering
3 × L298N Dual motor controller board These will handle the stall-current raiting of the motors vs. most of the others from Sparkfun or Adafruit, which are usually only rated for 2A max.
1 × Arduino MEGA 2560 6 motors+6-pin cables, plus digital pins for the motor controllers, that's a LOT of GPIOs we're going to need.