/challenges-projects/project14/controlsystems/b/blog/posts/running-in-circles-make-it-perfect-circles-with-regulatorsTry to run a 2 motor robot in a perfect circle by itself.......It wont :-( There are many variables that prevent perfection: wheel friction, wheel motor speed mismatches, gear backlash, wheel slip, wheel diameter mismatches, varying bat...en-USTelligent Community 12https://community.element14.com/challenges-projects/project14/controlsystems/b/blog/posts/running-in-circles-make-it-perfect-circles-with-regulatorsWed, 07 Oct 2020 19:57:12 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:eba1403d-c6f7-4572-9248-89ce498bfd1ajw07521<p>Hi Gary,</p><p>&nbsp;</p><p>I found your experiment and work to get the robot to drive a circle fascinating. It reminded me of a book that I read 27 years ago called &quot;Fuzzy Logic&quot; by Daniel McNeill and Paul Freiberger. It was a concept of dealing with problems, not in a binary On Off fashion but more in the line of thinking of degrees of On or degrees of Off. The idea was invented in the US by Lotfi Zadeh but more commercially developed by the Japanese. I believe that your approach to solving the circle drive problem falls in the Fuzzy Logic category.</p><p>&nbsp;</p><p>John</p><img src="https://community.element14.com/aggbug?PostID=9976&AppID=270&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/challenges-projects/project14/controlsystems/b/blog/posts/running-in-circles-make-it-perfect-circles-with-regulatorsWed, 07 Oct 2020 16:40:36 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:eba1403d-c6f7-4572-9248-89ce498bfd1arobogary0<p>Wow. You make running in circles sound good.</p><img src="https://community.element14.com/aggbug?PostID=9976&AppID=270&AppType=Weblog&ContentType=0" width="1" height="1">