DC motor control

Discussion in 'The Projects Forum' started by SammyJenn, Oct 9, 2014.

  1. SammyJenn

    Thread Starter New Member

    Oct 9, 2014
    4
    0
    Hey guys

    I need suggestions please:

    I have 4 dc motors fitted to the underside of a portable platform.
    These motors must engage on my command then turn the "worm gear" that will in turn lower the stabilizer arms to level out the platform.
    I am looking for a micro controller that can be programmed to do this.

    I know this will most probably not be a quick fix thing but am willing to learn, no rush.

    Please advise

    Thanks in advance
     
  2. John P

    AAC Fanatic!

    Oct 14, 2008
    1,632
    224
    My first question is why 4 motors? Having too many motors lets you get into trouble if they aren't properly coordinated. With 3, you can be sure that nothing will jam.

    And, what is the sensing device that tells you the angle ("angles" really) of the platform versus a true horizontal?
     
  3. elabsp

    New Member

    Oct 23, 2013
    13
    1
    I will recommend you to use small controller for doing this job such as Siemens LOGO controller
    http://www.msosol.com/plchouse/

    OMRON ZEN NANO PLC
    http://datasheet.octopart.com/ZEN-10C1AR-A-V1-Omron-datasheet-4492.pdf

    These are ideal for performing such tasks. In which you will get small LCD and you can write/ erase program easily.
     
  4. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,500
    2,364
    I did this once for a project that used four screw jacks to lift a railway box car on each corner, I ended up using a Galil stand-alone 1500 servo unit http://www.ebay.com/sch/i.html?_fro....TRC0.H0.Xgalil+1500&_nkw=galil+1500&_sacat=0
    I used four servo motors with encoders, the Galil controllers have the feature of electronic gearing, IOW 3 slave motors can be geared off of a master encoder, the electronic gear ratio can be changed to tune each in exactly.
    The software is free and uses very simple 2 letter mnemonics.
     
  5. SammyJenn

    Thread Starter New Member

    Oct 9, 2014
    4
    0
    Mistake ermm bump
     
  6. SammyJenn

    Thread Starter New Member

    Oct 9, 2014
    4
    0

    The platform has 4 arms on each corner that can be adjusted up/down wit the use of a "wheel nut spanner" type tool.
    So 3 motors will not do the trick if you see my meaning.
    I want to "automate" this because doing this each time with the "tyre tool" is tedious to be honest.

    Well regarding the leveling/angle please advise, open to all/any suggestions/comments.
    Taking this one step at a time but please hit me.

    Thanks
     
  7. SammyJenn

    Thread Starter New Member

    Oct 9, 2014
    4
    0
    Very nice but not what I had in mind. Thanks though
     
  8. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,500
    2,364
    A little more on the exact mechanics would help?
    Max.
     
  9. MrChips

    Moderator

    Oct 2, 2009
    12,414
    3,353
    I moved this thread from Embedded Systems and Microcontrollers to The Project Forum.
     
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