RoboSavvy Forum

Robobuilder 23 DOF

2012-02-27T04:03:45+01:00

They apparently sent a reccomendation: If you add the metal joints of the robot, you will be greatly improved, in a stable motion.

Statistics: Posted by natsuto — Mon Feb 27, 2012 4:03 am

try wallkong

2011-11-29T23:21:09+01:00

the first test to walking with 23DOF

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Statistics: Posted by nicolas gomez — Tue Nov 29, 2011 11:21 pm

Robobuilder 23 DOF

2011-11-29T17:01:37+01:00

Great work here ! Gives me some ideas for mine.

Statistics: Posted by ron — Tue Nov 29, 2011 5:01 pm

Robobuilder 23 DOF

2010-11-22T00:18:00+01:00

Hi Nicolas

With regards to tweaking the PID settings on the servos do you mind sharing the experiments you're doing and the results you're getting?

We have palyed with the PID settings just once when writing some code to test the wCK protocol and were able to tweak the servos to have, for example, a more elastic behaviour.
Other settings just made the servos shake in an uncontrolled way.

. Are you getting improved performance from the servos?
. What is your goal when tweaking the PID settings?

We'd love to hear from your experiments!

Robosavvy

Statistics: Posted by robosavvy — Mon Nov 22, 2010 12:18 am

Robobuilder 23 DOF

2010-11-19T16:50:53+01:00

Traull wrote:
amazing!!!
i was going through the pros and cons of the robobuilder and bioloid but after seeing this beautiful machine i know the robobuilder is for me.

did you not like the metal brackets and chest plate for the robobuilder????

I want preserve the original appearance of the robot and avoid add more weight,I dont like the metal brackets, special the arms and the chest.

do you still use the standered controller or a different one???

now i use the standar controller,and maybe after use a mini pc

do you use it in competitions eg robo football or fighting?????

I use the robot to research in computer vision object pose estimation to robot interaction.

how quick does it walk and side step?????

- The quickly depends of the of time on the transitions between frames when editing with the movements with motion builder.

-Also the quickly depends the PID parameters of the WCK modules that make the servo responds faster or slower the desired position, as I increased the degrees of freedom and structure of the robot, I implement a new algorithm to make him walk.

sorry about so many questions just really intereasted

Statistics: Posted by nicolas gomez — Fri Nov 19, 2010 4:50 pm

Robobuilder 23 DOF

2010-11-18T01:09:56+01:00

amazing!!!
i was going through the pros and cons of the robobuilder and bioloid but after seeing this beautiful machine i know the robobuilder is for me.
did you not like the metal brackets and chest plate for the robobuilder????

do you still use the standered controller or a different one???

do you use it in competitions eg robo football or fighting?????

how quick does it walk and side step?????

sorry about so many questions just really intereasted

Statistics: Posted by Traull — Thu Nov 18, 2010 1:09 am

Robobuilder 23 DOF

2010-11-18T14:37:43+01:00

HI!!

Thanks for your interest and comments, now in the video can not be seen in the detail, but I already have added metal joints.

The instability seen in some movements is because I've been modifying the PID parameters of the WCK modules and so far I've picked up the Work Related software with motion builder.

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Greetings and thanks again

Statistics: Posted by nicolas gomez — Wed Nov 17, 2010 8:30 pm

Robobuilder 23 DOF

2010-11-17T16:08:24+01:00

Hi Nicolas

We've just received an email from Robobuilder about your work

They are apparently following it and sent a reccomendation: if you add Metal Joints to the robot you will get much improved stability in the motions.

In any case, we found it quite interesting that they follow our forum and your work!

Regards
Robosavvy

Statistics: Posted by robosavvy — Wed Nov 17, 2010 4:08 pm

Re: nice

2010-10-21T20:45:26+01:00

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Statistics: Posted by nicolas gomez — Thu Oct 21, 2010 8:45 pm

Re: nice

2010-10-21T20:44:21+01:00

http://www.youtube.com/watch?v=cqtXSPapOBI

Statistics: Posted by nicolas gomez — Thu Oct 21, 2010 8:44 pm

nice

2010-02-02T02:45:09+01:00

Very nice.

How is the knee and ankle servo dealing with the extra weight?

How about some walking with the next DOF?

Statistics: Posted by UncleBob — Tue Feb 02, 2010 2:45 am

Robobuilder 23 DOF

2010-07-11T14:30:18+01:00

limor wrote:
just found out that Nicolas actually uploaded some nice pictures of the bot and some instructions on how to do the chest modifications
The first photo describe how place the servos of the head and neck, inside the chest cover of the roobt-

The second poto show how place the aditional servo for the forearm,

The third show how jonit the waist with the RBC-BOX.

And finally for the hip, place the 3 wck servos aligned, the central servo moves the torso of the robot therefore his axes looks up whereas the axes of servos of the sides look below(down) ,to make to turn every leg.

The piece that joins these three servos was done by me placing the 3 sevos on a paper(role) of cardboard, then mark the position that was occupying each one , I advise to leave a space of 2 or 3 mm between(among) servos to be able to spend(pass) the cables, then use this template tu cut the aluminium.

To attach the hip with the leg use the jonit number 12, cutting these to obtain same squared form as like the jonit 5 preserving the alignment and the center alignment.

y make another two pieces to joint forearm and the arm that describe after

( high resolution files are at http://robosavvy.com/Builders/Niko2009/IAMGES/ )

Next steps :

Head :

Reposition the infrared Remote receiver, the Infrared Distance Sensor, add cmos webcam with mic

http://www.pixmania-pro.co.uk/uk/uk/813 ... ebcam.html

and add Ultrasonic Range Finder in the Chest

http://www.sparkfun.com/commerce/produc ... ts_id=8501

http://www.maxbotix.com/uploads/LV-MaxS ... asheet.pdf

Redesign and improvement of hip pivot

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Statistics: Posted by nicolas gomez — Wed Jan 20, 2010 5:46 pm

Robobuilder 23 DOF

2009-10-15T22:47:18+01:00

just found out that Nicolas actually uploaded some nice pictures of the bot and some instructions on how to do the chest modifications

The first photo describe how place the servos of the head and neck, inside the chest cover of the roobt-

The second poto show how place the aditional servo for the forearm,

The third show how jonit the waist with the RBC-BOX.

And finally for the hip, place the 3 wck servos aligned, the central servo moves the torso of the robot therefore his axes looks up whereas the axes of servos of the sides look below(down) ,to make to turn every leg.

The piece that joins these three servos was done by me placing the 3 sevos on a paper(role) of cardboard, then mark the position that was occupying each one , I advise to leave a space of 2 or 3 mm between(among) servos to be able to spend(pass) the cables, then use this template tu cut the aluminium.

To attach the hip with the leg use the jonit number 12, cutting these to obtain same squared form as like the jonit 5 preserving the alignment and the center alignment.

y make another two pieces to joint forearm and the arm that describe after

( high resolution files are at http://robosavvy.com/Builders/Niko2009/IAMGES/ )

Statistics: Posted by limor — Thu Oct 15, 2009 10:47 pm

Robobuilder 23 DOF

2010-01-19T23:27:24+01:00

Hello Pedro !! again thank you very much for integrating the video, since I do not know how do it.

I did 4 metal pieces (aluminium of 2mm of thickness)

For the hip, place the 3 wck servos aligned, the central servo moves the torso of the robot therefore his axe looks up whereas the axes of servos of the sides look below(down) ,to make to turn every leg, the piece that joins these three servos was done by me placing the 3 sevos on a paper(role) of cardboard, then mark the position that was occupying each one , I advise to leave a space of 2 or 3 mm between(among) servos to be able to spend(pass) the cables, then use this template tu cut the aluminium.

To attach the hip with the leg use the jonit number 12, cutting these to obtain same squared form as like the jonit 5 preserving the alignment.

y make another two pieces to joint forearm and the arm

Statistics: Posted by nicolas gomez — Fri Aug 21, 2009 3:59 pm

Robobuilder 23 DOF

2009-08-21T13:10:48+01:00

Hi nicolas

I have embedded this new video in your post as well (I hope you don't mind that I edited your original post to embed the video).

The work you've done looks amazing.

I see there was a lot of custom fabrication.

With regards to the hip, I see you used your own metal parts.
Did you use any part of the Hip Pivot Kit we sell here at Robosavvy or did you just fabricate the whole metal part from scratch?

Statistics: Posted by PedroR — Fri Aug 21, 2009 1:10 pm