Here&#x27;s a Youtube channel with similar content. <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;user&#x2F;thang010146&#x2F;videos" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;user&#x2F;thang010146&#x2F;videos</a><p>I found it a while ago while deep in &quot;related&quot; videos, it&#x27;s one of the few channels I&#x27;m subscribed too. As I understand it, he&#x27;s retired with a doctorate in mechanical engineering, and just likes making little mechanisms in Inventor.