Robot chassis for 4 wheeled robotic car using an Arduino or similar microcontroller. Motor mounts included to attach hobby motors to the chassis through slots in the chassis. I did not make any holes for attaching the microcontroller to the chassis since there are many microcontrollers that could be used. I would recommend putting a piece of masking tape on the chassis where you will drill the hole.
I included a picture of the chassis I am working on to give you an idea how it can work and how the motors are attached. Please note that the chassis I am using in the photo is an earlier version of the model.
Chassis can be stacked for multiple levels, holes included. I find extenders with 2.5mm threads work well.
Simple 3D print using standard PLA.
I also included a version for using a hobby motor without gear mechanism and a flat version for the second level
The author marked this model as their own original creation.