4WD Robotic car chassis with the integrated motor mount. Compatible with the parts for WatsonBot. Added strength to the chassis with less amount of assembly required. It's easy to make, durable, lightweight, and cheap.
The bottom plate has mounting holes for L298N motor driver board and the top plate has 4 UNO compatible mounting holes.
There many kits available online with acrylic frames. Get one, use the electronic parts and make your own 3D printed frame. Or buy the parts make your own smart car, learn Arduino and robotics, all for less than $30!
Examples of the parts available on Amazon for reference:
Included in the file also a frame only chassis that you can customize
Build size 250mmx150mm. Split the file for the smaller build platform, then use glue to combine the parts. Recommended glue: