About this 3D model

This module allows your SMARS to draw with a marking pen.It works with every configuration of SMARS and you need only two components:-1x SG90 micro servo https://amzn.to/2A2NE2Q http://s.click.aliexpress.com/e/bFG6Nwso-1x Bic Velleda whiteboard marker The module doesn't need screws to be assembled.