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Help for a Step Motor Drive

Discussion in 'Robotics & Mechatronics' started by manoj soorya, Jan 28, 2018.

  1. manoj soorya

    manoj soorya Member

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    Sorry for the misunderstanding your meaning....You are correct. Its called Shaft.
     
  2. manoj soorya

    manoj soorya Member

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    Will post a video of my Pan and Tilt unit latter... Not Finished yet. Just some final touch.
     
  3. manoj soorya

    manoj soorya Member

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    HI all

    I just get another schematic. But the code is not include. I cant find the firmware. This is the circuit.
    <img src="https://image.ibb.co/en5cQn/Step_Motor.png" alt="Step_Motor" border="0">


    [​IMG]


    Can someone provide its code or firmware for me....?

    Thanks in advance
     
  4. dave miyares

    Dave New Member

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  5. Ian Rogers

    Ian Rogers User Extraordinaire Forum Supporter Most Helpful Member

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    74ls86 no model?? There is a model in Proteus 8.... In Proteus 7 you can use the 74HC86 it will give the same results...
     
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  6. manoj soorya

    manoj soorya Member

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    Thank you Ian Roger. Its simulate. But the problem is rest here.

    Regards Manoj Soorya.
     
  7. be80be

    be80be Well-Known Member

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  8. dave miyares

    Dave New Member

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  9. large_ghostman

    large_ghostman Well-Known Member Most Helpful Member

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    I think its a school thing, i dont think they actually build the circuit. I often wonder why so many of these are so intent on making stuff work in Proteus. If your actually building this then doing the drawing in proteus is fine, but really i would bread board this and try it for weight etc.

    Might just be me but i get the feeling they just hand it in as a project for an assignment without actually Building. Alot of cheap Arduino kits come with steppers and motor drivers on boards already.
     
  10. cmartinez

    cmartinez New Member

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  11. be80be

    be80be Well-Known Member

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    I got some of those too mine didn't have heat sink tho it burnt up at 500 mA but like I said it had no heat sink.
    It like got hot really fast . I then seen them with heatsink. probably the problem but i got them for like nothing.

    It would be nice if the easy stepper would do 1/16 it only goes to 1/8

    The A4988 good to 1 amp
     
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  12. cmartinez

    cmartinez New Member

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    I'm SOOOOO glad you've warned me. The modules haven't arrived, and now I'll make extra sure that the heat sinks are properly installed and tight against the chip. Many thanks!
     
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  13. Mickster

    Mickster Well-Known Member

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    There's also the DRV8825 based ones, which share the same pinout and can go up to approx 1.5A per phase:
    https://www.pololu.com/product/2133
    The latest one which people with 3D printers are going for, is the TMC2130:
    https://www.filastruder.com/products/silentstepstick-tmc2130-stepper-motor-driver

    The latter can be controlled via SPI and has higher microstepping resolution. DRV8825 will do microsteps up to 1/32, whilst the TMC2130 will go to 1/256.
    Additionally, the TMC's are supposedly much quieter and have load detection, but I'm not going to shell out over $10 per driver board, when the A4988 & DRV8825 versions I have do just fine.

    Regards.

    EDIT:
    "controlled" should instead read "configured"
     
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  14. be80be

    be80be Well-Known Member

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    • Like Like x 1
  15. Mickster

    Mickster Well-Known Member

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    If you're on a budget and/or don't mind waiting a few weeks for shipping, Banggood has them for $9.30:
    https://www.banggood.com/search/drv8825-stepper-driver.html
    (Shipping from Amazon would be $17.19 for me, on top of the $12.75, then 25% Customs duty on the items added on top, so $33.13. Banggood = $11.63)
     
  16. be80be

    be80be Well-Known Member

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    You probably closer to where they come from then me But I can get free shipping so there 12.75.

    banggood even better tho I just hate there wait last thing I got too 6 weeks LOL
     
  17. Mickster

    Mickster Well-Known Member

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    I tend to plan ahead and consolidate a BG order for items required for projects which are lower down on the to-do list. That way, I can focus on the projects I currently have parts for and maybe actually finish one. :D
     
    • Like Like x 1
  18. be80be

    be80be Well-Known Member

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    I got 3 going now just not much time in the day tho.
     
  19. Mickster

    Mickster Well-Known Member

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    If only there were a pill we could take, where sleep was no longer a requirement...
    However, employers would probably feed them to us like Skittles!!!
     
  20. be80be

    be80be Well-Known Member

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    Yep we never get go home
     

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