Legacy Forum: Preserving Nearly 20 Years of Community History - A Time Capsule of Discussions, Memories, and Shared Experiences.

Humanoid Build

Bioloid robot kit from Korean company Robotis; CM5 controller block, AX12 servos..
4 postsPage 1 of 1
4 postsPage 1 of 1

Humanoid Build

Post by Pev » Tue May 16, 2006 12:39 am

Post by Pev
Tue May 16, 2006 12:39 am

Okay I have now completed the humanoid build. Was all pretty straight forward but I did find one bracket was miss referenced in the manual, the waist bracket was drawn as an F2 bracket but was labelled as an F1. I went with an F2. All in all took about 6 to 7 hours, including testing with the included test program. I found no isses with the test program but have seen a little instability in the motion editor and programming interface. I often loose the link to the CPU or have the program just crash with no error message.

I also find I do suffer from the whining servo as mentioned by other builders so this seems a pretty common fault. I may try to engineer out the waist servo as this seems to be the issue (I think?)

All in all though I must confess I am impressed with the quality and easy of use. Now the challenge of getting it all to work with walking etc. Also want to see if I can tackel the IR remote as it has a built in sensor but doesn't ship with a remote.

Have some build pics that I will upload at some point if anyone is interested.

Pev
Okay I have now completed the humanoid build. Was all pretty straight forward but I did find one bracket was miss referenced in the manual, the waist bracket was drawn as an F2 bracket but was labelled as an F1. I went with an F2. All in all took about 6 to 7 hours, including testing with the included test program. I found no isses with the test program but have seen a little instability in the motion editor and programming interface. I often loose the link to the CPU or have the program just crash with no error message.

I also find I do suffer from the whining servo as mentioned by other builders so this seems a pretty common fault. I may try to engineer out the waist servo as this seems to be the issue (I think?)

All in all though I must confess I am impressed with the quality and easy of use. Now the challenge of getting it all to work with walking etc. Also want to see if I can tackel the IR remote as it has a built in sensor but doesn't ship with a remote.

Have some build pics that I will upload at some point if anyone is interested.

Pev
Carl
-------------------------
www.alt-view.co.uk
Pev
Savvy Roboteer
Savvy Roboteer
User avatar
Posts: 547
Joined: Sun Feb 26, 2006 1:00 am
Location: UK

Post by limor » Tue May 16, 2006 12:49 am

Post by limor
Tue May 16, 2006 12:49 am

pictures and videos.. yes please :)
pictures and videos.. yes please :)
limor
Savvy Roboteer
Savvy Roboteer
User avatar
Posts: 1845
Joined: Mon Oct 11, 2004 1:00 am
Location: London, UK

Post by Pev » Tue May 16, 2006 8:01 am

Post by Pev
Tue May 16, 2006 8:01 am

OKay here are a few pics of the major constructions:

Image
Upper Torse with Arms attached

Image
Hips and Legs Assembled - here you can see the hip rotation joint

Image
Major construction complete

Worth noting at this point it is really easy to miss out the bus expansion PCB when you add the rest of the torso and head (yep I did). so worth getting it in place at this point before adding the head.

Image
Complete and standing the the test program position

Things to note:

1. Take your time - the Korean diagrams need to be carefully studied to ensure you don't miss anything.
2. The nuts have to be loaded into the servo lugs. This is fiddley but don't force them, when they are in the right orientation they go in very easily.
3. on the hip and ankle joints be careful not to pinch the short wire. It is tight but does fit. I fitted it to the servo port that was hidden during construction then plugged it into the visible port after construction. (Anyone building the humanoid will understand this when they get to the ankle/hip joints)
4. as mentioned earlier don't miss out the bus expansion PCB.
5. And finally I didn't have enough room to plug the two shoulder servo's together and then go to the expansion PCB so I have plugged each shoulder servo into the bus expansion PCB - works fine and saved me fighting with the little plug to get it home.

Pev
OKay here are a few pics of the major constructions:

Image
Upper Torse with Arms attached

Image
Hips and Legs Assembled - here you can see the hip rotation joint

Image
Major construction complete

Worth noting at this point it is really easy to miss out the bus expansion PCB when you add the rest of the torso and head (yep I did). so worth getting it in place at this point before adding the head.

Image
Complete and standing the the test program position

Things to note:

1. Take your time - the Korean diagrams need to be carefully studied to ensure you don't miss anything.
2. The nuts have to be loaded into the servo lugs. This is fiddley but don't force them, when they are in the right orientation they go in very easily.
3. on the hip and ankle joints be careful not to pinch the short wire. It is tight but does fit. I fitted it to the servo port that was hidden during construction then plugged it into the visible port after construction. (Anyone building the humanoid will understand this when they get to the ankle/hip joints)
4. as mentioned earlier don't miss out the bus expansion PCB.
5. And finally I didn't have enough room to plug the two shoulder servo's together and then go to the expansion PCB so I have plugged each shoulder servo into the bus expansion PCB - works fine and saved me fighting with the little plug to get it home.

Pev
Carl
-------------------------
www.alt-view.co.uk
Pev
Savvy Roboteer
Savvy Roboteer
User avatar
Posts: 547
Joined: Sun Feb 26, 2006 1:00 am
Location: UK

Post by Pev » Tue May 16, 2006 8:26 am

Post by Pev
Tue May 16, 2006 8:26 am

Just one other thing I forgot to mention. I found that I got odd movements and erratic behaviour with the supplied motion file so I downloaded the initial motion file from Robotis and recaptured the motions. This seems to have fixed the problem.

The file is :

http://robosavvy.com/Builders/Pev/InitialMotion.mtn

Cheers

Pev
Just one other thing I forgot to mention. I found that I got odd movements and erratic behaviour with the supplied motion file so I downloaded the initial motion file from Robotis and recaptured the motions. This seems to have fixed the problem.

The file is :

http://robosavvy.com/Builders/Pev/InitialMotion.mtn

Cheers

Pev
Carl
-------------------------
www.alt-view.co.uk
Pev
Savvy Roboteer
Savvy Roboteer
User avatar
Posts: 547
Joined: Sun Feb 26, 2006 1:00 am
Location: UK


4 postsPage 1 of 1
4 postsPage 1 of 1