My Bioloid "L"
My Bioloid "L"
by 27Loco
Thu Apr 08, 2010 10:33 pm
Finally I assembled my Bioloid the way I thought its good. 
But still I think there is a lot to do like hands, wireless connection, better servos. Im waiting for the CM700 
...
Do you have any ideas how I can reduce the weight? The hip servo is really at its limit sometimes.
Now its time to create some good movements
But still I think there is a lot to do like hands, wireless connection, better servos. Im waiting for the CM700 ...
Do you have any ideas how I can reduce the weight? The hip servo is really at its limit sometimes.
Now its time to create some good movements
by limor
Fri Apr 09, 2010 4:46 am
nice!
lipo will reduce weight
The connection with the hip servo maybe can use a custom made part.
the weight sitting on the hip servo axis shaft. Maybe you could somehow put there two plastic plates or bracket surfaces with low friction between them, this would distribute the upper body weight across a wider area attached to the hip servo body.
lipo will reduce weight
The connection with the hip servo maybe can use a custom made part.
the weight sitting on the hip servo axis shaft. Maybe you could somehow put there two plastic plates or bracket surfaces with low friction between them, this would distribute the upper body weight across a wider area attached to the hip servo body.
by 27Loco
Fri Apr 09, 2010 9:53 am
Thank you for the hints. Off course replacing the heaviest part of the robot is a good point to start 
. The most obvious solution and I dont see it .
I moved the body a little bit forward. That reduced the force of the hip servo quite good. I have to look if I find a good solution for your idea to distribute the weight to a wider area.
. The most obvious solution and I dont see it .
I moved the body a little bit forward. That reduced the force of the hip servo quite good. I have to look if I find a good solution for your idea to distribute the weight to a wider area.
Weight
by UncleBob
Fri Apr 09, 2010 2:03 pm
As you know I am going to robot fighting competition for the under 2kg team. I am thinking that I should not try to reduce the weight because the heavier it is the harder it is for the opponent to move my robot. And the harder it is to knock it down. But of course not so heavy that my servos cannot support it's own weight. What do you think?
by 27Loco
Fri Apr 09, 2010 2:47 pm
You are right.
It will be a disadvantage if the robot is too light for the fight. I would prefer a heavier robot that has stronger servos at positions that are under heavy load like hips and knees.
I looked at the last year videos from the competition in Korea you are going to. The one with the huge red(?!) robot had no competition, because the other bipeds where unable to move him, even if he was just standing there.
So make him heavier and look that your servos are never under too heavy load that the torque turns off.
Look at this little fellow. With the RX28 he is able to carry himself :
It will be a disadvantage if the robot is too light for the fight. I would prefer a heavier robot that has stronger servos at positions that are under heavy load like hips and knees.
I looked at the last year videos from the competition in Korea you are going to. The one with the huge red(?!) robot had no competition, because the other bipeds where unable to move him, even if he was just standing there.
So make him heavier and look that your servos are never under too heavy load that the torque turns off.
Look at this little fellow. With the RX28 he is able to carry himself
:
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