Anyone have any tips to reduce play in the J3 joint? With the robot on and the motors energized I can manually move the J3 joint at least 5 degrees or so. Did I maybe not tighten the bearing set screws enough? I'm not entirely sure how much is due to the sprockets slipping a bit on the shafts and how much is due the motor gearbox itself.
To see this working, head to your live site.
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That's a great idea, thanks!