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My finished 2DOF project (VideoTutorial)

Discussion in 'DIY Motion Simulator Projects' started by scruck, Jun 1, 2021.

  1. votrungchi

    votrungchi New Member

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    My Motion Simulator:
    2DOF
    Hello @scruck , I am started to build my own today and very interesting in your project. Just ordered the parts seem with you. I have a question about BTS7960, what is the voltage you use? Is it 24v, if that do you have any solution to protect the feedback current going to burn the BTS? I have read the thread you have mention, He supplies power just 18.5v but my power supply does not support adjusting the volt, it fixed at 24v. Thanks.
    • Like Like x 1
  2. scruck

    scruck Member

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    2DOF, DC motor, Arduino, Motion platform
    Hello @votrungchi , the first thing to say to you that I am very happy that you have decided to carry out the project, on the bts7960 I have not had a feedback problem at the moment, on 18.5v I had to modify the power supply by changing the voltage divider that regulates the voltage to get 18.5v on youtube you have a tutorial on how to modify power supplies, if you need it, tell me and I'll send you a link about it. Do not hesitate to ask everything you need in the process. Greetings and I await your images of the project.
    • Like Like x 1
  3. votrungchi

    votrungchi New Member

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    Thank you very much for your quick reply. So that means you also using the power supply at 18.5v currently? Have you burned out the BTS before at 24v or you just make sure it does not burn out by use at 18.5v?
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  4. scruck

    scruck Member

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    no, I have not burned a bts7960, but I make sure not to overheat them since they barely heat up to 18.5v and the motors still have a lot of power.
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  5. votrungchi

    votrungchi New Member

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    Thank you @scruck , Currently I am looking for another solution to protect BTS instead of modifying the power supply. But could you please show me the way you modify the power, if it is a simple modify I will consider to modify. Many thank again!
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  6. scruck

    scruck Member

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    There is no reason, to protect the source of the feedback you can put some diodes, on the modification of the source, which source do you use? PC ATX? to send you a video to modify ... you can even put a potentiometer and make it adjustable ... a greeting
  7. votrungchi

    votrungchi New Member

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    Hi, I am ordered Mean Well DRP-480S-24 (2nd) on the local shop in my country. So is the modification required? Thanks.
    Last edited: Jun 21, 2021
  8. votrungchi

    votrungchi New Member

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    I fixed the images.
    A49A7C42-41CB-4D5D-A983-5ED770A256D3.jpeg
    66EC768B-197A-4097-B696-985A7035AEC4.jpeg
    Last edited: Jun 21, 2021
  9. man05ru

    man05ru New Member

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    @scruck Why do you reduce the voltage to 18.5 if the bts7960 supports currents up to 43A and the motors on which you assembled are suitable for 24V?
  10. scruck

    scruck Member

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    good!!! Well, I reduce the voltage to avoid placing fans to cool the bts7960 and to control the sudden movements of my motors ... I am not looking for my platform to pull me from the seat, but rather a movement that gives good sensations, even lowering the voltage to 18.5V the motors still have a lot of power and the BTS7960 barely get hot ... avoiding much more assembly, such as box, fans, etc ...
  11. man05ru

    man05ru New Member

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    Still such a question may be stupid) do you need to supply 5V power to the arduino? If so, how? do you need a 5v power supply?
  12. scruck

    scruck Member

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    no, you don't need a 5v power supply for arduino, it is powered by the usb connection of the pc.
  13. man05ru

    man05ru New Member

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    exactly) completely flew out of the head. Thank you
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  14. votrungchi

    votrungchi New Member

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    Hello @scruck, maybe I will modify my power supplies to 18.5v if it is not difficult. Could you please let me know the detail about all of the aluminum parts with dimension? Thank you very much.
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  15. Kenshiro27

    Kenshiro27 Active Member

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    Hello, very nice achievement with great material.We feel the solid and precise side of the whole.And thank you for this very well detailed video.Great job
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  16. man05ru

    man05ru New Member

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    @scruck how did you convert your power supply to 18.5v?
  17. scruck

    scruck Member

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    Hello friend, sorry for the delay in answering, about the dimensions create some video tutorials on how to create your cockpit from the beginning, the dimensions change due to the anchoring of the seat and you will have to calculate it, anyway I will leave you my list in case it helps you help. Greetings

    VideoTutorial COCKPIT:

    PART 1:



    PART 2:



    PART 3:



    Aluminum parts with dimension (for 2DOF):

    1x 45x90 4E -> 600mm
    3x 45x45 4E -> 600mm
    2x 45x45 4E -> 430mm
    2x 45x45 4E -> 200mm

    MayCAD project file attachment

    Attached Files:

    • Like Like x 2
  18. scruck

    scruck Member

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    Good, I add a video where they explain how to carry out this conversion, you will have to have some knowledge of electronics

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  19. scruck

    scruck Member

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    Thanks!! a pleasure to help
  20. Fedor2091

    Fedor2091 New Member

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    Hi SCK !!!
    Please tell me if the MD13S is compatible with Cytron 13Amp and SMC3.
    Or is it better to use BTS7960 43A.
    I would like something more reliable, please advise !!!
    Thank you !!!