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://goo.gl/vj7ddh
-1x Bic Velleda whiteboard marker
The module doesn't need screws to be assembled.
Just a dude who loves CAD & 3D printing.
If you like my projects, support me buying the material from my links, it will not cost you extra money and you will allow me to finance new projects! I would really appreciate it!