About this 3D model

We use these small inexpensive robots to teach robotic to children during our CoderDojo sessions.See it in action: https://www.youtube.com/watch?v=LCJ8WDwsZtk The device is fully programmable with mBlock suite (very user friendly). What do you need: 1x Set of printed parts (attached) 1x Small turning wheel (https://www.bricoman.it/n/ferramenta/mobili/ruote/girevoli/ruota-sferica-26mm-portata-30kg-polipropilene/10008186/) 2x Smart car TT gearboxes & wheels (https://www.aliexpress.com/wholesale?catId=0&SearchText=tt+gearbox) 1x Arduino uno (or clone) 1x HC-SR04 ultrasonic sensor (https://www.aliexpress.com/wholesale?catId=0&SearchText=HCSR04) 1x L298 dual bridge (https://www.aliexpress.com/wholesale?catId=0&SearchText=L298+board) 1x Battery holder 1x on/off switch 1x Jack power connector Wires for motor & power cabling Dupont cables Several lenght M3 screws & nuts