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would these motors be any good??

Discussion in 'SimTools compatible interfaces' started by Deaks, Dec 27, 2010.

  1. Deaks

    Deaks New Member

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    My ulimate plan is to use the excellent scn5's and dampers from Simxperience, but due to a hiccup in my cash flow I will not be able to purchase them for a couple of months :thbd:

    I have salvaged an electric wheelchair that has some 24v electric motors:-

    Dynamic controls ltd WMT90110
    8 AMP continuous
    120 rpm +- 10 rpm
    stated torque 50Nm

    The batteries in the wheelchair were knackered, so I hooked up the batteries from my two golf trolleys.
    I hooked up a voltmeter to one of the motor inputs and using the wheelchair motor controller the voltage never goes above 15.6v in the forwards direction and about 8v in the backwards direction.

    http://www.youtube.com/watch?v=gpMCqTQo0HM

    I guess that if the motor got a full 24v feed it would be a fair bit faster.......but the million dollar question is, are these motors suitable for my seat mover project??

    My electronic skills are basic, but I dont mind spending upto a hundered pounds or so on controllers and psu's if the view is that the motors will be a good 'stop gap' choice.

    Patience was never one of my virtues

    Deaks
    Deaks, Dec 27, 2010
    #1
  2. Frakk

    Frakk Active Member

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    If they turn the same speed in both directions, they will be good.

    Now the question is: How are you going to control the 24V?
    (I know there will be suggestions to use the dMSHB, but that will only get you some DIY fireworks. :) )
    Frakk, Dec 27, 2010
    #2
  3. Deaks

    Deaks New Member

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    Hmmm, to be honest I am not sure yet, I know my electronics knowledge is not adequate to build the tronic AMC and H bridge.
    I am very interested in what bigtalltim has been doing with the wellman k8055 and relays, but I am not sure what would need modding for the 24v motors on the relay circuits.

    Another option is to again use the wellman k8055 and two pololu simple high power motor controllers 24v23
    http://www.pololu.com/catalog/product/1383
    I would prefer to use the relays as that is a much cheaper option, and I feel confident that I could build them without too much trouble.

    As I am not so good with electronics I need some kind of solution that will work without a lot of 'smoke and mirrors'

    As always any suggestions and advice will be gratefully received

    Deaks
    Deaks, Dec 27, 2010
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  4. Frakk

    Frakk Active Member

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    The relay method could definitely handle 24V and it would be cheap and easy to build.

    The pololu drivers are better, but more expensive. The one you linked can be controlled directly from the PC, not sure how you would do it in X-Sim, since the feedback needs to come from a k8055 kind of device. They also have motor drivers without the extra USB interface that can be controlled with the k8055.
    Frakk, Dec 27, 2010
    #4