Self-driving road marking machine.
<video controls autoplay loop>
<source src="https://s3-us-west-1.amazonaws.com/hmt-forum/self_driving_road_marking_machine.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
Previously:
https://www.homemadetools.net/forum/...8464#post87589
https://www.homemadetools.net/forum/...471#post122631
https://www.homemadetools.net/forum/...338#post116485