Robotics Platform for Raspberry Pi 5 with 28 BYJ-48 Motors & L298N DC Motor Controllers & Pi Camera Module 3

Custom robotics platform i made as part of a final project in a CS course at the Holon Institute of Technology ("software development for human robot interaction"). 

The platform is compatible with Camera Module 3 and Pi 5 .

case not included (and technically not necessary to assemble the platform)

Recommended mounting solution is to use 4 M2.5 Threaded Standoffs at the bottom of your Raspberry Pi board/HAT stack and to thread the screws through the main body to the standoffs.

Requirements:

2 28 BYJ-48 stepper motors

2 L298N DC motor controllers

1 raspberry pi camera module 3

4 688ZZ 8x16x5 bearings

4 M2.5 screws to mount your Rpi to the robotic platform's main body 

Printed out of SUNLU Elite PETG with 15% Gyroid infill (to save weight)

Assembly:

Print 1 main_body – orient so the front of the body is the base of the print (where the camera hole is at) and use tree supports (not 100% necessary but insures that geometry is consistent as this platform is mostly push fit) 

Print 2 driving_wheel

Print 4 supporting_wheel

Print 4 wheel_connector

Print 4 plug

2 silicone/rubber/tpu bracelets to be used as tires for the driving wheels

Insert the bearings into the supporting wheels, insert the wheel connectors to the appropriate holes, insert the stepper motors into the slots in the middle of the platform.

Attach the camera module 3 to the front of the platform with the ribbon cable side facing down.

Install your Rpi board/HAT stack to the platform with the USB side facing towards the front of the platform.

Insert the support wheels onto the wheel connectors.

Attach the driving wheels directly to the stepper motors

Install the tires (silicone bracelets) onto the driving wheels 

The large slot at the back is for housing a battery bank to power your robot/pi (we used a UPS HAT to power the Rpi and a power bank to power the motor drivers)