bioloid premium help
bioloid premium help
by Traull
Wed Jan 05, 2011 4:05 pm
i have a bioloid premium type a with football motion pack
everything is fine moving and kicking wise for the first couple of min then it seems as if the servos dont go back to their proper positions this causes the robot to lean untill all moves force it to fall down
how do i stop this
everything is fine moving and kicking wise for the first couple of min then it seems as if the servos dont go back to their proper positions this causes the robot to lean untill all moves force it to fall down
how do i stop this
by Traull
Wed Jan 05, 2011 5:01 pm
yea here is the site i got it from its a good base to add your own moves to but i had problems with the fast running so i have mounted the battery at the front of the robot to help balance.
hope this helps
http://support.robotis.com/en/product/b ... m_demo.htm
hope this helps
http://support.robotis.com/en/product/b ... m_demo.htm
by RoboFlop
Wed Jan 05, 2011 11:12 pm
I had a damaged cable on my bioloid which made it do some really jittery things like it was having a stroke or a seizure of some kind 
It wasnt immediately apparent what was causing it at first and it was intermittetent. I had to look quite closely to see the exposed copper wire near the hip joint. I think it occurred during the standard headstand move as the wire was able to get pinched between the brackets if it got in the wrong position...not sure if this is any help but its worth a mention. If your bioloid operates properly then fails consistently after a few minuttes then I guess it is unlikely to be this kind of problem. Does it go back to normal immediately after a power reset?
It wasnt immediately apparent what was causing it at first and it was intermittetent. I had to look quite closely to see the exposed copper wire near the hip joint. I think it occurred during the standard headstand move as the wire was able to get pinched between the brackets if it got in the wrong position...not sure if this is any help but its worth a mention. If your bioloid operates properly then fails consistently after a few minuttes then I guess it is unlikely to be this kind of problem. Does it go back to normal immediately after a power reset?
by Fritzoid
Thu Jan 06, 2011 12:14 pm
Traull,
This could be due to "gyro drift". The task program calibrates the gyro centerpoints when it first starts. Over time, typically just a minute or two, the gyros will start to produce slightly offset results. This can lead to balance problems because the callback routine calculates the difference between the current gyro reading and the calibrated centerpoint.
You can verify this theory by adding a couple of print statements in the callback routine that will display the fields FBBalError and RLBalError. Use RoboPlus Terminal to monitor these numbers as the robot runs. If these numbers show an accumulating error that your problem is gyro drift.
This could be due to "gyro drift". The task program calibrates the gyro centerpoints when it first starts. Over time, typically just a minute or two, the gyros will start to produce slightly offset results. This can lead to balance problems because the callback routine calculates the difference between the current gyro reading and the calibrated centerpoint.
You can verify this theory by adding a couple of print statements in the callback routine that will display the fields FBBalError and RLBalError. Use RoboPlus Terminal to monitor these numbers as the robot runs. If these numbers show an accumulating error that your problem is gyro drift.
