Remix from the bobacat from the Thingeverse
Adapted to the Mecbox A1 controller
Needed two micro motor reductor 20x10mm
SG90 servo, but better to use MG90S (probably will be necessaru to make small adoptation)
DS-M005 micro servo
Use Lobachevsky Hub google apple application, it is great to control 2 motor and 2 servo