Page 1 of 2 12 LastLast
Results 1 to 10 of 16

Thread: designing high torque motor

  1. #1
    robot maker Guest

    designing high torque motor

    looking at the HSR-5990TG that alot of us use for robotics and find out how to make one much better with half the current and about 5 times more torque
    what HSR-5990TG has is 541 oz stall at 7.2 volts idle current 280 ma
    my design is stall 2336 oz at 7.2 volts 150 ma
    will post the design as i am finished it will be near the same size .771 x 1.5 x 2.5 high
    cost will near the same HSR-5990TG is $125, mine about $100 or less
    Last edited by DresnerRobotics; 09-28-2008 at 11:58 PM.

  2. Re: designing high torque motor

    Very intriguing, how far along are you?
    Greatness is achieved through one vision.

  3. #3
    Join Date
    Apr 2008
    Location
    Nelson, New Zealand
    Posts
    1,356
    Images
    58
    Rep Power
    74

    Re: designing high torque motor

    I would love to see it Robot maker, What is your time frame with this servo?
    People yearn after this robotic dream, but you can't strip your life of all meaning, emotion and feeling and expect to function.


  4. #4
    Join Date
    May 2008
    Posts
    2,228
    Images
    155
    Rep Power
    128

    Re: designing high torque motor

    So this servo will have 1/10th of the speed (~5s for 180degrees)? Or are you just lowering the idle current (in which case the stall current would be ~25A)?

    Physics kicks in at some point.... A quick calculation shows the HSR-5990TG uses [email protected] at stall, or about 37W. 541oz-in = 33.8ft-in = 3.8nm, 0.17s/60degrees = ~1RPM = 3.14rad/s, 3.8nm*3.14rad/s = 24W = about 65% efficiency. So um, its not like the HSR5990 is really inefficient... something else has to give...

    -Fergs

  5. #5
    Join Date
    Apr 2008
    Location
    Sacramento, CA, USA Area
    Posts
    5,341
    Rep Power
    177

    Re: designing high torque motor

    My only regret is that I can't give you more than 1x+Rep for that post, Fergs.
    I Void Warranties�

  6. #6
    Join Date
    Sep 2006
    Location
    Carol Stream, Illinois
    Posts
    1,695
    Images
    118
    Rep Power
    109

    Re: designing high torque motor

    +Rep from another mod

    �In the long history of humankind (and animal kind, too) those who learned to collaborate and improvise most effectively have prevailed�
    - Charles Darwin

  7. #7
    Join Date
    Dec 2007
    Location
    Portland, OR
    Posts
    3,198
    Images
    952
    Rep Power
    142

    Re: designing high torque motor

    Personally I'd wait until I had the proof of concept built with pictures/video and verifiable proof of how much torque and current draw the unit can produce/draw before I posted

  8. #8
    Join Date
    Apr 2008
    Location
    Sacramento, CA, USA Area
    Posts
    5,341
    Rep Power
    177

    Re: designing high torque motor

    You're such a big meanie, Tyberius!

    As long as you have all the numbers and science to back it up, a theoretical post can be intriguing, imho. "Thinking Man's Design" and all.

    Thanks, Alex! I really felt compelled to up-rate that post twice - thanks for making that a reality!
    I Void Warranties�

  9. #9
    Join Date
    Sep 2006
    Location
    Carol Stream, Illinois
    Posts
    1,695
    Images
    118
    Rep Power
    109

    Re: designing high torque motor

    You're such a big meanie, Tyberius!
    Yeah, I know right? I think I'm going to have to put some tacks on his chair or something... maybe nails?

    �In the long history of humankind (and animal kind, too) those who learned to collaborate and improvise most effectively have prevailed�
    - Charles Darwin

  10. #10
    Join Date
    Dec 2007
    Location
    Portland, OR
    Posts
    3,198
    Images
    952
    Rep Power
    142

    Re: designing high torque motor

    Quote Originally Posted by Adrenalynn View Post
    As long as you have all the numbers and science to back it up
    Exactly.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Question(s) Writing an educatonal book on robotics
    By darkback2 in forum Robotics General Discussion
    Replies: 107
    Last Post: 05-24-2010, 11:51 PM
  2. Contest Entry Wall-E
    By 4mem8 in forum Project Showcase
    Replies: 218
    Last Post: 03-29-2009, 04:06 AM
  3. Freddie's Modded J5
    By robot maker in forum Rovers
    Replies: 90
    Last Post: 12-24-2008, 03:21 AM
  4. How To Radio Control DC Motors Cheaply
    By Al1970 in forum Robotics General Discussion
    Replies: 1
    Last Post: 06-29-2008, 09:10 AM
  5. Fast Spinning DC Motor + Controller
    By BillW in forum DYNAMIXEL & Robot Actuators
    Replies: 3
    Last Post: 06-29-2007, 03:12 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •