RoboSavvy Forum

bioloid premium help

2011-01-06T12:14:07+01:00

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.

Statistics: Posted by Fritzoid — Thu Jan 06, 2011 12:14 pm

bioloid premium help

2011-01-06T01:15:51+01:00

no it sometimes just goes to a close position ok i will check all the wires intently as i have been worried about one or two and let you know cheers

Statistics: Posted by Traull — Thu Jan 06, 2011 1:15 am

bioloid premium help

2011-01-05T23:12:43+01:00

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?

Statistics: Posted by RoboFlop — Wed Jan 05, 2011 11:12 pm

bioloid premium help

2011-01-05T22:09:05+01:00

nope no leds show on the servos

Statistics: Posted by Traull — Wed Jan 05, 2011 10:09 pm

bioloid premium help

2011-01-05T22:03:42+01:00

Are any of the alarm LEDS coming on?

My bioloid will sometimes hit the alarm temperature when standing on one leg for quite a short time with the subsequent loss of torque when the servo shuts down.

Statistics: Posted by RoboFlop — Wed Jan 05, 2011 10:03 pm

bioloid premium help

2011-01-05T21:39:31+01:00

yes they are correctly plugged in

Statistics: Posted by Traull — Wed Jan 05, 2011 9:39 pm

bioloid premium help

2011-01-05T20:25:38+01:00

Hi, Not sure if this is the problem but: Are you sure that your gyro leads are plugged into the correct CM510 ports?

Statistics: Posted by Fraser — Wed Jan 05, 2011 8:25 pm

bioloid premium help

2011-01-05T17:46:00+01:00

Thanks for that, Traull.

Hope someone helps you

Statistics: Posted by Kelpy — Wed Jan 05, 2011 5:46 pm

bioloid premium help

2011-01-05T17:01:24+01:00

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

Statistics: Posted by Traull — Wed Jan 05, 2011 5:01 pm

bioloid premium help

2011-01-05T16:27:58+01:00

Hi, Traull.

I'm sorry I can't help with your problem, but I'm sure someone will have suggestions.

Can I ask you what is the Bioloid Football Motion Pack, and where I can find it? I've just got a premium and am about to start building.

Statistics: Posted by Kelpy — Wed Jan 05, 2011 4:27 pm

bioloid premium help

2011-01-05T16:05:55+01:00

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

Statistics: Posted by Traull — Wed Jan 05, 2011 4:05 pm