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what potentiometer to use

Discussion in 'Motor actuators and drivers' started by steveh2112, Oct 4, 2016.

  1. steveh2112

    steveh2112 Member

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    My Motion Simulator:
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    i'm building a 2DOF rig based on this post
    https://www.xsimulator.net/communit...3dof-motor-driver-and-windows-utilities.4957/

    for the position feedback i guess i need something like a 10k linear pot right?

    is a cheap 20% accuracy chinese pot ok or should i be spending $20-30 or more on a precision audiophile grade pot?

    thx steve

    PS, i just got this
    http://www.ebay.com/itm/141814699999
    US brand
    Standard Resistance Tolerance ±10% Minimum Practical Resistance Tolerance ±5% Independent Linearity2 ±1% Minimum Practical Independent Linearity ±0.5%

    hope that's good enough
    Last edited: Oct 4, 2016
    steveh2112, Oct 4, 2016
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    noorbeast, Oct 4, 2016
    #2
  3. steveh2112

    steveh2112 Member

    Joined:
    May 12, 2014
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    semi retired
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    Phuket, Thailand
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    1,147Coins
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    +22 / 1 / -0
    My Motion Simulator:
    2DOF
    thanks, i just ordered a flexible coupling too.

    i guess i'll go the the pot for now, maybe upgrade to hall sensor later, i'm not worried about over rotating, tilt range will be limited mechanically to +/- 20degrees or so

    BTW, thanks again noorbeast for all your help.

    i noticed the hall sensor you use has 'Independent Linearity ±0.5%'

    the pot i chose is from the same manufacturer (BI technologies) and looks like it has the same Linearity
    • Like Like x 1
    Last edited: Oct 4, 2016
    steveh2112, Oct 4, 2016
    #3