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Thread: Whoa, want some linear accuracy?

  1. #1
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    Whoa, want some linear accuracy?

    Alex found this link and I'm stealing his glory by posting it

    Stepper motor driven linear actuator:

    http://www.ultramotion.com/products/digit.php


  2. #2
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    Re: Whoa, want some linear accuracy?

    At thrusts up to 400lbs, repeatability to +/-.00004 inches, and if it's as fast as this linear actuator (the product page states 15 inches/sec), then let Skynet begin!!


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

  3. #3

    Re: Whoa, want some linear accuracy?

    These are way cool but I bet they are expensive. Just like the Squiggle motors I posted a while ago they are out of the price range for anybody but a serious robot builder.
    and the PQ12 actuators thar are posted here on Trossen are 65.00, Higher than the price of a good high end hobby servo and they still need a driver.

    So unless these manfactures can release a low cost verson geared for the hobby market not the comercial / industrial market. They will be out of reach to all but the serious hobbiest budget.

    I Know they are all hoping for a comercial application that will sell 10 of thousands but in reality if they sell a 100 this year they will be luckey.

    So Matt /Alex, How do we get the cool things at low cost?

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    Re: Whoa, want some linear accuracy?

    I just got off the phone with them.

    $600 gets you the base model linear actuator...

    To tell you the truth, given all of the incredible specs on these actuators, this price doesn't really surprise me.

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

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    Re: Whoa, want some linear accuracy?

    BTW, have you seen the new L-series actuators? We just got them in and they work GREAT with hobby servo controllers. They're controlled directly through PWM:

    http://www.trossenrobotics.com/store...-Actuator.aspx
    http://www.trossenrobotics.com/store...-Actuator.aspx

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

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    Re: Whoa, want some linear accuracy?

    Quote Originally Posted by jdolecki View Post
    So Matt /Alex, How do we get the cool things at low cost?
    Crime man, there is always a life of crime to turn to.

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    Re: Whoa, want some linear accuracy?

    Quote Originally Posted by Matt View Post
    Crime man, there is always a life of crime to turn to.
    Bank robbing robots. If it's ever traced back to us we'll feign ignorance and blame Skynet.
    Andrew Alter
    Trossen Robotics
    Join the Robotic Combat Revolution @ Mech Warfare!

  9. #8

    Re: Whoa, want some linear accuracy?

    Bank robbing robots!

    1 Build a small robot.

    2 put it in a safety deposit box

    3 when the bank is closed, the robot turns on

    4 opens the safe from the inside.

    5 turns off the alarm from the inside

    6 opens the door

    and you walk in and take what you want.

    or it could take a little at a time and just go back into the box each nite.

  10. #9

    Question Re: Whoa, want some linear accuracy?

    It's too bad there are not any linear actuators that could be used to build hobby scale robots. It would be really cool to have a biped or hexapod/octapod built using linear actuators instead of servos.

    I wonder if a servo driven linear actuator could be made for a reasonable price. Would it be possible to even make such a thing?

    8-Dale
    I can handle complexity. It's the simple things that confound me.
    Do everything in moderation, ESPECIALLY, moderation..
    Sometimes the only way to win, is not to play.. -- Stephen Falken

  11. #10
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    Re: Whoa, want some linear accuracy?

    Quote Originally Posted by jdolecki View Post
    Bank robbing robots!

    1 Build a small robot.

    2 put it in a safety deposit box

    3 when the bank is closed, the robot turns on

    4 opens the safe from the inside.

    5 turns off the alarm from the inside

    6 opens the door

    and you walk in and take what you want.

    or it could take a little at a time and just go back into the box each nite.
    LA LA LA LA LA LA LA LA LA LA ......

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