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Back to basics! 2Dof is better than no movement at all.

Discussion in 'DIY Motion Simulator Projects' started by mrbeginner, Apr 24, 2015.

  1. mrbeginner

    mrbeginner Active Member Gold Contributor

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    When i sit in chair it feels balanced because if i put SMC3 setup and monitor utility on and set the deadzone to 1 motors start make some noise and if i move hands to back it stops. So i think it so close to pivot what it could be. The Kp is set to 700 so maybe this is the reason? I think i tested those settings and forget to change it back to 400
  2. mrbeginner

    mrbeginner Active Member Gold Contributor

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    Motor was still hot if i don't use fan. But i found maybe other solution. my PWMmin was 50 and as you can see there is some weird PWM signal so i put PWMmin to 20 and next i test if that solved the problem. Can you tell me is there some other problem what you maybe see because i get blind to my own errors :blush
    smc.jpg
  3. mrbeginner

    mrbeginner Active Member Gold Contributor

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    What kind of tuning center profiles you have? I try to get some road vibration movement and in pcars i get some but ac feels like i drive some superdampered car without any bumps. I'm so totally lost because sometime when i put different settings in tuning center it feels better but then i try pcars and find that it have better immersion.
    I put my AC and Pcars profiles here if someone could tell whats the main problem because i don't see it.
    ac tuning center.jpg pcars tuning center.jpg
  4. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Unfortunately it is impossible to get a sense of tuning center values without at least a comparative video to go with it. To complicate matter AC and PCars handle physics differently, particularly with respect to gravity, so differ significantly in the motion profiles you develop for them.

    Generally getting heave sorted will help with road vibration. Like any other setting you should first turn every other force off, tweak the Axis Allocation % in SimTools and then refine the Tuning Center values. The lower the number in the Tuning Center the sharper the response. The lowest setting possible is 0.001.

    Once you have heave pretty good in AC for a medium range car like the Corvette you can tun every thing else back on and see if it needs any additional tweaking. Then you can set up individual car/track tweaked profiles in Game Manager. So things like the Cobra will likely need heave increased in the custom Game Manager profiles, while others like the Lotus 125 would likely need heave decreased from the default in the custom profile
    • Agree Agree x 1
  5. mrbeginner

    mrbeginner Active Member Gold Contributor

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    After several settings i get improved feeling in AC. I found out that it have so different bump feel that it was hard to set same kind like Pcars. I'm not sure but it feel like AC bumps are all the same kind, maybe it's my settings what cause that but i'm not sure. example if i ride Spa long straight there are several bumps what feels same kind and with Pcars there are different bump heights if you understand what i mean.
  6. Wanegain

    Wanegain Active Member

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    Maybe you need to tune your values in Tuning Center. What effects are you using ?
    Last edited: Feb 9, 2016
  7. shannonb1

    shannonb1 Well-Known Member

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    Here is what I have set...very different from yours
    upload_2016-2-9_10-21-40.png
  8. Wanegain

    Wanegain Active Member

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    Oh... You are using very low values in axis assigments too I guess o_O
  9. shannonb1

    shannonb1 Well-Known Member

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    Yeah, and I use 50:1 gear motors and JRK's. I get really good motion.
  10. Nick Moxley

    Nick Moxley Well-Known Member

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    Holy POOP is that Heave low. are you serious you need to go .1 for heave to get the detail shannon ? I rock 1.8 with some filter's in the backround.....im kinda baffled how your's needs to be so low.
  11. Nick Moxley

    Nick Moxley Well-Known Member

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    After inspecting AC's mesh's first hand in 3dsim. There are VERY few if any repetitive type's of meshes...Its your setting's......AC's Mesh's are 1000X better than Pcars, No question's asked.
  12. shannonb1

    shannonb1 Well-Known Member

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    I like to feel the feelz!
  13. shannonb1

    shannonb1 Well-Known Member

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    Tell you what, would you try it on your setup and let me know what you think? I like to cruise the Nord and tend to go for Ferrari or open wheelers.
  14. Nick Moxley

    Nick Moxley Well-Known Member

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    Can do later on today, but no guarentees it wont be immediately turned back to my #'s.....

    This is on 1.8 heave I could only imagine .1

    Edit keep in mind this was technically a "damper issue" that was resolved by my Suspension guy.





    Shannon, Try Monza with some openwheeler's...you'll be pleasantly surprised with the detail it has.
    Last edited: Feb 9, 2016
  15. shannonb1

    shannonb1 Well-Known Member

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    What is the length of your motor arm?
  16. Nick Moxley

    Nick Moxley Well-Known Member

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  17. shannonb1

    shannonb1 Well-Known Member

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    ok, so were really close there. Perhaps the difference is the combination of forces that you use compared to mine.
  18. Nick Moxley

    Nick Moxley Well-Known Member

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    I dont see how a combo of Forces would lead to Such a BIG difference in heave......Very confusing.....do you watch your Axis output while racing ? are you picking up Every single blip of the data ? I would assume so being at .1 but how am i also accessing said small details @ 1.8
  19. shannonb1

    shannonb1 Well-Known Member

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    so you could have opposing forces that could play with the motion. Also Im set to around 20% for heave. What are you?
  20. Nick Moxley

    Nick Moxley Well-Known Member

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    either 20 or 30% if i recall.