Kinematics and Servo motor gear ratios

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28 Sep 2017 09:16 #99542 by bodhi_94
Hello,
I'm building puma 560 typed robot arm. To apply kinematics, I used genserkins and added measured DH parameters. But when I jog the robot in world space it move very fast if I lowered all jog speeds. Why this i happening?... I used 1 to 1000 electronic gear ratios in my servo drivers.
Thank you.

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28 Sep 2017 13:24 #99548 by bkt
normally these happens when you make very wrong calculation about encoder ratio .... maybe your input data from your computation is wrong (encoder ppr, gear ratio/pulley ratio, step of motor if use stepper as it seems because not talk to us about axis following error) ... a wrong ferror min-ferror value can show these result (if you set it too hight, the motion start but stop only when ferror limit stop).

Best things is to show your ini hal file.

regards
giorgio

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