1. Do not share user accounts! Any account that is shared by another person will be blocked and closed. This means: we will close not only the account that is shared, but also the main account of the user who uses another person's account. We have the ability to detect account sharing, so please do not try to cheat the system. This action will take place on 04/18/2023. Read all forum rules.
    Dismiss Notice
  2. For downloading SimTools plugins you need a Download Package. Get it with virtual coins that you receive for forum activity or Buy Download Package - We have a zero Spam tolerance so read our forum rules first.

    Buy Now a Download Plan!
  3. Do not try to cheat our system and do not post an unnecessary amount of useless posts only to earn credits here. We have a zero spam tolerance policy and this will cause a ban of your user account. Otherwise we wish you a pleasant stay here! Read the forum rules
  4. We have a few rules which you need to read and accept before posting anything here! Following these rules will keep the forum clean and your stay pleasant. Do not follow these rules can lead to permanent exclusion from this website: Read the forum rules.
    Are you a company? Read our company rules
Shared accounts will be removed Plugin Downloads Zero spam policy Forum Rules

Ways to install potentiometers

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by Cale, Jan 17, 2017.

  1. Cale

    Cale Member

    Joined:
    Dec 27, 2016
    Messages:
    30
    Location:
    Australia
    Balance:
    490Coins
    Ratings:
    +2 / 0 / -0
    My Motion Simulator:
    2DOF
    Hi guys just wonderng if you have any links to different ways to install potentiometers? Im going to be using 180deg hall sensors on ac motors/gearboxes.
    Is there any simpler ways of mounting that are durable and accurate that doesnt involve using gears as i have seen in some builds?
    Pictures or links would be appreciated.
    Thanks!
    Cale, Jan 17, 2017
    #1
  2. Tim McGuire

    Tim McGuire "Forever a work in progress"

    Joined:
    Jul 26, 2015
    Messages:
    261
    Occupation:
    Electrical/Electronics Engineer
    Location:
    Canada
    Balance:
    2,164Coins
    Ratings:
    +313 / 2 / -0
    My Motion Simulator:
    3DOF, DC motor
    • Agree Agree x 1
    Tim McGuire, Jan 17, 2017
    #2
  3. Cale

    Cale Member

    Joined:
    Dec 27, 2016
    Messages:
    30
    Location:
    Australia
    Balance:
    490Coins
    Ratings:
    +2 / 0 / -0
    My Motion Simulator:
    2DOF
    @Tim McGuire thanks for the link. I like the flexible coupler idea....so let me understand this.....the flexible coupler is attached to the motor shaft so it will rotate with the shaft. The hall sensor then just sits loosly inside the coupler to then sense the shaft moving around. I then mount the hall sensor to a bracket which i attach to the motor to stabilise the hall sensor sitting inside the coupler?
    Thanks.
    Cale, Jan 17, 2017
    #3
  4. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
    Messages:
    20,557
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    145,160Coins
    Ratings:
    +10,780 / 52 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    The Hall sensor is supported by a mount bracket but the correct size flexible coupling tightens to grip the sensor and the motor shafts, so any movement is 1:1.

    Being flexible the coupling takes load off the sensor for any minor misalignment.
    noorbeast, Jan 17, 2017
    #4
  5. cthiggin

    cthiggin Active Member

    Joined:
    Jul 1, 2012
    Messages:
    672
    Occupation:
    Self-Employed
    Location:
    Montgomery AL USA
    Balance:
    15,209Coins
    Ratings:
    +435 / 0 / -0
    My Motion Simulator:
    3DOF, AC motor, Arduino, Motion platform
    I did my pot setup on AC like you are suggesting noorbeast - and it worked pretty well.
    I finally decided on designing a mount affixed to gearhead / then used aluminum pulley's and timing belt.
    I had to do the second way as I was having some "gearhead body flex" that would not allow to continuous accurate readings. Cost me about 35.00 us PLUS an afternoon to build the
    steel mounts for them.
    cthiggin, Jan 17, 2017
    #5
  6. Cale

    Cale Member

    Joined:
    Dec 27, 2016
    Messages:
    30
    Location:
    Australia
    Balance:
    490Coins
    Ratings:
    +2 / 0 / -0
    My Motion Simulator:
    2DOF
    @noorbeast thanks for the reply. So basically the hall sensor is tightened in the coupling along with the shaft so they both rotate in sync with each other but the coupling can also flex slightly if needed? The bracket is then used with a hole through it for the hall sensor to go through to keep it in a rough position so it doesnt actually attach to the sensor? If this is the case do you really need the bracket or can i just use the coupling?
    Also how would i go about using the coupling if my motor shaft is 24mm. Thats much wider than the 12mm coupling posted earlier.
    Thanks.
    Cale, Jan 17, 2017
    #6
  7. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
    Messages:
    20,557
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    145,160Coins
    Ratings:
    +10,780 / 52 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    The bracket holds the outer Hall sensor housing tight, the pot shaft tuns with the motor.
    noorbeast, Jan 17, 2017
    #7
  8. Cale

    Cale Member

    Joined:
    Dec 27, 2016
    Messages:
    30
    Location:
    Australia
    Balance:
    490Coins
    Ratings:
    +2 / 0 / -0
    My Motion Simulator:
    2DOF
    @noorbeast ok im with you now! So what are the best methods of holding the head of the hall sensor in place with a bracket? I see some use glue... but is there any other better ways? Also is it best to mount the bracket onto the motor so the sensor moves with movement of the motor or attach the bracket to my simulator frame for more stability.
    Thanks.
    Cale, Jan 17, 2017
    #8
  9. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
    Messages:
    20,557
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    145,160Coins
    Ratings:
    +10,780 / 52 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    The Hall sensor comes with a threaded housing and lock nut, so just drill the correct size hole in the bracket, slip the Hall sensor in and tighten the nut.
    noorbeast, Jan 17, 2017
    #9
  10. Cale

    Cale Member

    Joined:
    Dec 27, 2016
    Messages:
    30
    Location:
    Australia
    Balance:
    490Coins
    Ratings:
    +2 / 0 / -0
    My Motion Simulator:
    2DOF
    Im with you....probably would have helped if i had the hall sensors already to avoid many silly questions but i got it in the end.
    Thanks!
    Cale, Jan 17, 2017
    #10
  11. Cale

    Cale Member

    Joined:
    Dec 27, 2016
    Messages:
    30
    Location:
    Australia
    Balance:
    490Coins
    Ratings:
    +2 / 0 / -0
    My Motion Simulator:
    2DOF
    @noorbeast what about going from a 24mm shaft into the pot...the coupler is too small for that to work...any ideas on how to make that work?
    Cale, Jan 17, 2017
    #11
  12. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
    Jul 13, 2014
    Messages:
    20,557
    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    145,160Coins
    Ratings:
    +10,780 / 52 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    noorbeast, Jan 18, 2017
    #12