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Creazyrider 2DOF for car races and plane

Discussion in 'DIY Motion Simulator Projects' started by creazyrider, Jun 25, 2018.

Page 2 of 8
  1. creazyrider

    creazyrider Active Member

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    My Motion Simulator:
    3DOF
    I just get the U-joint, it's time to build the support for the moving frame

    20180723_215559AVANT.jpg

    20180723_215335TUBE.jpg
    creazyrider, Jul 24, 2018
    #21
  2. creazyrider

    creazyrider Active Member

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    My Motion Simulator:
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    I may change my mind building the sim with shoulder rod mount instead of the rod under the seat because I'm afraid that my motors will not be powerfull enough and after reading a lot of topics It seems to be better for the feelings in the shoulder and more precise.
    Actually I prefere the version under the seat because the sim is smaller.

    What do you think about it ?

    Simulateur voiture 2DOF shoulder 3d bis 25.07.18.jpg

    Simulateur voiture 2DOF shoulder 3d 25.07.18.jpg
    creazyrider, Jul 26, 2018
    #22
  3. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
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    My Motion Simulator:
    3DOF, DC motor, JRK
    I am not sure what spec motors you are using, but a shoulder mount does not need as much torque to drive it as a compact design.
    noorbeast, Jul 26, 2018
    #23
  4. creazyrider

    creazyrider Active Member

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    My Motion Simulator:
    3DOF
    The motors will be 120W 24V 40rpm 50:1
    Torque :28N.m
    creazyrider, Jul 26, 2018
    #24
  5. creazyrider

    creazyrider Active Member

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    My Motion Simulator:
    3DOF
    I will build a 70mm lever rotating in a 120° angle
    creazyrider, Jul 26, 2018
    #25
  6. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

    Joined:
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    Occupation:
    Innovative tech specialist for NGOs
    Location:
    St Helens, Tasmania, Australia
    Balance:
    145,160Coins
    Ratings:
    +10,780 / 52 / -2
    My Motion Simulator:
    3DOF, DC motor, JRK
    Something to keep in mind, as a lever moves through an arc its effective use of torque rapidly diminishes over 40 degrees up or down.
    noorbeast, Jul 26, 2018
    #26
  7. creazyrider

    creazyrider Active Member

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    Yes, that's why I'm afraid to have not enough power in a compact design.
    I finish the rear structure, I will calculate the position of the motors and begin to build the ground structure.
    creazyrider, Jul 31, 2018
    #27
  8. creazyrider

    creazyrider Active Member

    Joined:
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    My Motion Simulator:
    3DOF
    I had some angle for the rear structure so it doesn't touch the seat

    20180730_210800.jpg
    The rear structure finished
    20180730_220009.jpg
    • Like Like x 1
    creazyrider, Jul 31, 2018
    #28
  9. creazyrider

    creazyrider Active Member

    Joined:
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    My Motion Simulator:
    3DOF
    Now the rotation axis is soldered I use Simcalc to calculate the better position for the motors. This is what I obtain with my settings but I have no Idea of the Torque I need for Roll and Pitch, Anyone could tell me if it's not enough ?
    The Roll angle is High I think but the Pitch is ok for me.
    creazyrider, Aug 1, 2018
    #29
  10. creazyrider

    creazyrider Active Member

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    My Motion Simulator:
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    SimCalc calcul position moteurs.png
    creazyrider, Aug 1, 2018
    #30
  11. creazyrider

    creazyrider Active Member

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    My Motion Simulator:
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    I am surprise of these results because at first I put the motors farther away of the pivot axe to be closer of the "better place" for the motors (to have a right angle between the rod and the structure). But this is the results: and the efficiency is quite bad for the pitch.

    SimCalc calcul position moteurs 1.png
    creazyrider, Aug 1, 2018
    #31
  12. creazyrider

    creazyrider Active Member

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    My Motion Simulator:
    3DOF
    Is there someone to share his experience in this values ? This is my first sim so I don't really know wich one is most important and if the Torque is enough.
    creazyrider, Aug 3, 2018
    #32
  13. creazyrider

    creazyrider Active Member

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    My Motion Simulator:
    3DOF
    Cutting the U-joint

    Decoupe cardan.jpg
    • Funny Funny x 1
    creazyrider, Aug 27, 2018
    #33
  14. creazyrider

    creazyrider Active Member

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    My Motion Simulator:
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    Building the fixed part

    Chassis2.jpg
    • Like Like x 1
    creazyrider, Aug 27, 2018
    #34
  15. creazyrider

    creazyrider Active Member

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    My Motion Simulator:
    3DOF
    The U-joint is now soldered to the frame

    Simu avec structure.jpg
    creazyrider, Aug 28, 2018
    #35
  16. creazyrider

    creazyrider Active Member

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    My Motion Simulator:
    3DOF
    Test of the full clearance

    Simu penche arriere.jpg
    creazyrider, Aug 28, 2018
    #36
  17. creazyrider

    creazyrider Active Member

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    My Motion Simulator:
    3DOF
    Simu penche avant.jpg
    creazyrider, Aug 28, 2018
    #37
  18. creazyrider

    creazyrider Active Member

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    My Motion Simulator:
    3DOF
    Simu penche cote.jpg
    creazyrider, Aug 28, 2018
    #38
  19. creazyrider

    creazyrider Active Member

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    My Motion Simulator:
    3DOF
    The arm for the motor: 10mm thikness

    Came moteur.jpg
    creazyrider, Aug 30, 2018
    #39
  20. creazyrider

    creazyrider Active Member

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    My Motion Simulator:
    3DOF
    Came moteur 1.jpg
    creazyrider, Aug 30, 2018
    #40
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