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MY own 2 dof diy

Discussion in 'DIY Motion Simulator Projects' started by absyfadhel1, Apr 17, 2020.

Page 7 of 21
  1. absyfadhel1

    absyfadhel1 Member

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    so you tell me that i must coonect the wire from psu to the bridge rectifier and from the bridge rectifier to the motor right?
    absyfadhel1, Nov 9, 2020
    #121
  2. absyfadhel1

    absyfadhel1 Member

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    do you think if i use diffrent psu will be fixed without need to this bridge?
    absyfadhel1, Nov 9, 2020
    #122
  3. PMK

    PMK Member

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    Correct

    You will likely need to use some form of back EMF protection no matter what PSU you use. It's a really simple and cheap circuit and is definitely worthwhile.
    PMK, Nov 10, 2020
    #123
  4. absyfadhel1

    absyfadhel1 Member

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    hi i bought 1 week plugin download for 250coin and i download many plugin that i want this from 2 week ago..i lost 2 from my plugins and i want to recover it is there is way to restore what i bought from simtools? becuase now i need to collect 250 coins again for 2 plugins
    absyfadhel1, Nov 19, 2020
    #124
  5. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    3DOF, DC motor, JRK
    noorbeast, Nov 19, 2020
    #125
  6. Samborghini

    Samborghini Mad Scientist

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    I would recommend getting one of the high current switch mode power supplies.
    As a rough guide check what the controller motor output protection (fuese,overloads etc) are rated at and use this figure together for each channel. Somewhere between 20A to 40A
    I would then measure your load using a multi meter or current meter when the motors peak with fast movement - you may or may not be able to view the peak current (depending on the meter read speed) but this should at least give you a ball park figure. Or if you know the motor rating (watts) you can calculate it out.
    Samborghini, Nov 20, 2020
    #126
  7. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    In addition to the PSU it looks to me that you also have a design problem.

    A lever is most effective when at 90 degrees to the rod, with around 38-40 degrees either side of that about the maximum range before use of effective torque drops off dramatically.

    In the video you have a compact full frame design, which needs lots of torque, small wiper motors of likely limited power and the lever looks to almost be aligned with the rod, where it is pretty much ineffectual:

    Lever.jpg
    noorbeast, Nov 20, 2020
    #127
  8. Gadget999

    Gadget999 Well-Known Member

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    use a car battery as a buffer to the motor - it takes the spikes and regenerative voltages away from the power supply
    Gadget999, Nov 20, 2020
    #128
  9. absyfadhel1

    absyfadhel1 Member

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    Oh nice price can you send me the link for them to purchase them?...in my country even dont have wheelchair motor they dont sale any dc motor exept small one like for test
    absyfadhel1, Nov 24, 2020
    #129
  10. absyfadhel1

    absyfadhel1 Member

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    absyfadhel1, Nov 26, 2020
    #130
  11. absyfadhel1

    absyfadhel1 Member

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    absyfadhel1, Dec 15, 2020
    #131
  12. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    I use those motors on my compact rig, but with 60:1 wormdrives for greater torque.

    The standard 25:1s can operate for light loads in a compact design, but will be working pretty hard.
    noorbeast, Dec 15, 2020
    #132
  13. absyfadhel1

    absyfadhel1 Member

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    Can you give me a link for good and cheap motor?
    absyfadhel1, Dec 16, 2020
    #133
  14. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    noorbeast, Dec 16, 2020
    #134
  15. absyfadhel1

    absyfadhel1 Member

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    Hi..

    My motor potentmeter move the other motor...like when i turn left potenmeter the left motor turn but while the motor moving the right motor move a little why?!

    i checked all wires and all thing is good why the other motor move?

    and both motor potentmeter when i move them a little there is no movement like there is a deadzone why?
    the potentmeter is new and replace them but nothing changed help!?
    absyfadhel1, Dec 27, 2020
    #135
  16. absyfadhel1

    absyfadhel1 Member

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    + i set simtools axis for nolimts2, when i use simtools test the motor move in a place that i want.. but when i start the game and the rollercoaster move the motor move more than what its must move in why? does the top problem related to this one?
    absyfadhel1, Dec 27, 2020
    #136
  17. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Can you please post pictures of all of your settings.
    noorbeast, Dec 27, 2020
    #137
  18. absyfadhel1

    absyfadhel1 Member

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    Screenshot 2020-12-28 014701.png Screenshot 2020-12-28 014741.png Screenshot 2020-12-28 014752.png Screenshot 2020-12-28 014809.png
    absyfadhel1, Dec 27, 2020
    #138
  19. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Before messing with NL2 can you please confirm that the rig behaves as expected in both SMC3 and SimTools Output Testing.
    noorbeast, Dec 28, 2020
    #139
  20. absyfadhel1

    absyfadhel1 Member

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    In smc3 the motor not going up in realtime like it has deadzone
    absyfadhel1, Dec 28, 2020
    #140
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