Sid Posted August 7, 2018 Share Posted August 7, 2018 We have the Sawyer installed on the standard pedestal. We noticed that during fast motions involving joint J0, the pedestal column rotates about its axis (yaws) a few degrees as the robot comes to a halt. This seems like unexpected behavior? Please suggest possible actions we should take to prevent the above from happening. Thanks. Quote Link to comment Share on other sites More sharing options...
Jake Hiltz Posted August 10, 2018 Share Posted August 10, 2018 Hi Sid, Yes, this can happen if the threaded rods that secure the pedestal column are loose. I recommend taking the robot off the pedestal, then tightening the 2 nuts there to at least 30Nm. You can tighten them even further as long as you don't exceed 180Nm. You may also want to remove them and apply some thread locking (like Loctite brand), that would also help to prevent them from becoming loose. After putting the arm back on the pedestal, please tighten those bolts down to 16Nm. Quote Link to comment Share on other sites More sharing options...
Sid Posted August 22, 2018 Author Share Posted August 22, 2018 Thank you for the recommendation, Jake. Will try it and update. Quote Link to comment Share on other sites More sharing options...
Sid Posted August 28, 2018 Author Share Posted August 28, 2018 Hi Jake, We tightened the column bolts to >30N-m and the issue does seem to have been resolved. Thanks for your help. Thanks, Sid Quote Link to comment Share on other sites More sharing options...
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