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High Torque Servo, where to buy online? — Parallax Forums

High Torque Servo, where to buy online?

ManuelManuel Posts: 105
edited 2005-08-20 05:02 in General Discussion
Hello everybody, im going to work on some stuff that requires high torque servos. I need some servos that could handle easily 30 - 90 kgs-cm.·Every help, advice is warmly welcome.


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Best Regards

Manuel C. Reinhard

Comments

  • OakGraphicsOakGraphics Posts: 202
    edited 2005-08-15 20:23
    I think I know the brute you desire. Check out this technique of 'gearing up' an already fantastic servo to 5x it's origional torque!
    http://www.robotzone.com/customer/product.php?productid=186&cat=51&page=1
    Here is a quote from that page:
    'With a 5:1 ratio, the 805 Servo Power Gearbox can lift up to 30 pounds using a 4" arm.'

    There is also a 'standard' one not using the Hitec HS-805BB and HS-815BB servos at:
    http://www.robotzone.com/customer/product.php?productid=185&cat=51&page=1

    Here is a quote from that page:
    'With a 5:1 ratio and a HS-645MG servo, the Standard Servo Power Gearbox can lift up to 10 pounds using a 4" arm.'

    fwit: http://www.robotzone.com seems to be the only place I have seen this type of thing, but somebody smart with gears could have done something simular. It's just nice to see it all packaged and pretty like that. :-)

    Post Edited (OakGraphics) : 8/15/2005 8:26:15 PM GMT
    bmp
    bmp
    bigtorque.bmp
    138K
  • OakGraphicsOakGraphics Posts: 202
    edited 2005-08-15 20:35
    hmm. I just re-read your post and you want something that can move 30 to 90 kilograms per centimeter.
    The above top servo - once converted to metric on it's highest ratio is 19.1415087 kilograms per centimeter.
    I think you are headed to linear actuator land. smile.gif
  • Tim-MTim-M Posts: 522
    edited 2005-08-15 20:38
    Servo City is another good source for all types of servos and the 'gear box' mentioned above.· www.servocity.com

    Tim
  • dandreaedandreae Posts: 1,375
    edited 2005-08-15 20:39
    You might want to check with·www.towerhobbies.com , they have a wide range of servos.

    Dave

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    Dave Andreae

    Tech Support
    dandreae@parallax.com
    Http://www.parallax.com

    ·
  • ManuelManuel Posts: 105
    edited 2005-08-15 21:07
    Thx everyone for the replays!

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    Best Regards

    Manuel C. Reinhard
  • ManuelManuel Posts: 105
    edited 2005-08-18 20:53
    Is there a difference between controlling a futaba servo and one such as the HS-815BB? And is there a diference between normal and digital servos?

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    Best Regards

    Manuel C. Reinhard
  • um..., Hium..., Hi Posts: 64
    edited 2005-08-19 06:30
    hey,

    to answer your last Q, digital servos are usaly stronger, quicker, more accurate, and more expensive. the only difference is that digital servos "refresh" their postion something like 5-6x more than standar servos. but senting signals should be the same!

    -MM

    Post Edited By Moderator (Aristides Alvarez (Parallax)) : 8/19/2005 10:34:58 PM GMT
  • ManuelManuel Posts: 105
    edited 2005-08-19 17:52
    So... I can still use my pause 50 (bs2x) as with standard servos, or must i use smaller pauses?

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    Best Regards

    Manuel C. Reinhard
  • um..., Hium..., Hi Posts: 64
    edited 2005-08-20 05:02
    you should be able to but i have not tried it yet, i would give it a wirl beacuse it wont do any damage.

    good luck,
    MM
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