I wanted to send out a note to everyone to make sure you get the J3 belt tensioned properly. It does need to be fairly tight and cannot have any slop in it. A couple people have had this issue recently – this person on youtube made a video on the robot and he doesn’t have the belt tight enough. (I posted a comment on his video outlining the things he was mistaken on – hopefully his viewers take note of it)

https://www.youtube.com/watch?v=4xD9QCBkxAs&lc=UgyQPwXsxTMfLsU0J-R4AaABAg Here is a quick video showing what the deflection should look like when you pull up and down on the arm. https://youtube.com/shorts/lf_KFFiCdJA I will be updating the manual to include more information on good belt tension.

Thanks.

Chris