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Question 6dof finally finished. Abandoned for servo actuator build

Discussion in 'DIY Motion Simulator Building Q&A / FAQ' started by Rodeo5150, Jul 14, 2022.

  1. Rodeo5150

    Rodeo5150 ROOKIE BUT LEARNING FAST Gold Contributor

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    My Motion Simulator:
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    Hi all it's been awhile since I've been on here, I was suppse to post a motion video of my rig once I got it working. Well that video never came because I never got it working correctly. Found out I'm not a good as welder as I thought I was, found out that I don't know s*** about geometry. I didn't take my time in building it, I didn't make sure any of my angles were the same, motor placement was correct, and I I was too hasty and I threw it together too fast and ended up with a 6 dof that didn't work. I burned up Motors and motor drivers because Motors were working too hard. working against themselves you know pushing against each other trying to raise it you know when I get to the neutral point it seemed like they would be just pushing against each other like they're too close together or something. Or one motor would be back further than the other so then the whole rig would twist and things like that. you know just over stressing the whole rig from the rig being get to hastily built. so I completely tore it apart for materials and so this is my second attempt at 6 dof. please refer to the photos the first set of photos will be of my first dof and the second set of photos will be of my current attempt at a build. if anybody can take anything from this is.... if it's your first time building please take your time, do your measurements be diligent in your measurements and your angles thank you. 20220419_213322.jpg 20220419_213336.jpg 20220419_213449.jpg


    Current build I'm making two different cockpits. one for racing one for flight that they just slip out it. they can be changed quickly and easily without having to you know tear everything apart to change games. as you can see one of the cockpits is down on the ground, it's the one for racing and I'm currently waiting different Motors because the motors I have for one they're kind of worn out from the other rig and two they were never really strong enough to start with
    DSC01144.JPG DSC01146.JPG DSC01152.JPG DSC01148.JPG DSC01166.JPG DSC01161.JPG DSC01172.JPG IMG_0136.JPG IMG_0143.JPG IMG_0133.JPG IMG_0146.JPG

    I will post some videos of motion shortly
    • Like Like x 1
    Last edited: Jul 27, 2022
  2. Rodeo5150

    Rodeo5150 ROOKIE BUT LEARNING FAST Gold Contributor

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    My Motion Simulator:
    Arduino, 6DOF
    20220705_005200.jpg IMG_0140.JPG 20220702_184907.jpg

    Attached Files:

    • Like Like x 1
  3. Rodeo5150

    Rodeo5150 ROOKIE BUT LEARNING FAST Gold Contributor

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    My Motion Simulator:
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    Here are all my simtools settings. If anyone has any ideas that can help me please comment thank you AXIS ASSIGNMENTS.png AXIS ASSIGNMENTS2.png HEAVE FILTER.png PITCH FILTER.png ROLL FILTER.png SURGE FILTER.png SWAY FILTER.png YAW FILTERING.png Screenshot 2022-07-20 220255.png MOTORS 3,4.png MOTORS 5,6.png
  4. Rodeo5150

    Rodeo5150 ROOKIE BUT LEARNING FAST Gold Contributor

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    My Motion Simulator:
    Arduino, 6DOF
    motion box

    Attached Files:

    • Like Like x 1
  5. Rodeo5150

    Rodeo5150 ROOKIE BUT LEARNING FAST Gold Contributor

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    My Motion Simulator:
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    my interface settings interface 1 and 2.png interface 3,4.png interface 5,6.png
  6. Rodeo5150

    Rodeo5150 ROOKIE BUT LEARNING FAST Gold Contributor

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    • Like Like x 1
  7. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    My first suggestion would be to not use any filters until you have fully refined a good base motion profile, it will only add false ques and complicate matters, filters should be the very final step in refining a motion profile.

    My second suggestion would be to do each axis setting one at a time, with the other axis temporarily disabled.

    See the FAQs here regarding tips to refine a motion profile: https://www.xsimulator.net/community/faq/steps-to-create-a-motion-profile.228/

    Posting SMC3 settings without showing Out Mode tests is not really helpful, as it is impossible to know how the hardware is responding.
  8. Rodeo5150

    Rodeo5150 ROOKIE BUT LEARNING FAST Gold Contributor

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    My Motion Simulator:
    Arduino, 6DOF
    1659946365520464579975402543400.jpg 20220807_172221.jpg 20220807_172207.jpg 20220807_172216.jpg 16599185741978902916150126477120.jpg 20220806_152116.jpg 20220806_152050.jpg 20220806_152101.jpg 20220806_151929.jpg 20220806_152116.jpg 20220806_152050.jpg 20220806_152101.jpg 20220806_152116.jpg 20220806_152050.jpg 20220806_152101.jpg 20220806_151929.jpg 20220807_172221.jpg 20220807_172207.jpg 20220807_172216.jpg 16599185741978902916150126477120.jpg 20220806_151929.jpg 20220807_172221.jpg 20220807_172207.jpg 20220807_172216.jpg Well Ive torn it down again and now Im rebuilding with different motors and instead of one motion box in the middle of the simulator. I now have three small motion boxes in between each set of motors that I built, and now just the power supplies will be in the middle. Yes I'm still using the ibt2s. I am going to invest in some sabertooth or I think I might try the Cytron MD 30 controllers so let's see how that works, and I'm also going to change my Pivot points for my push rods from the outside of the platform to underneath. 20220807_172221.jpg 20220807_172207.jpg 20220807_172216.jpg 16599185741978902916150126477120.jpg
    • Like Like x 2
    Last edited: Aug 8, 2022
  9. Rodeo5150

    Rodeo5150 ROOKIE BUT LEARNING FAST Gold Contributor

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    Do you mean showing you SMC 3 motion tests per motor is that what you're talking about?
  10. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    No, what I mean is set all but one axis to zero in the Axis Assignments, tune the one enabled axis with a mid range car until you refine the settings for that one axis, without interference or confusing cues from other axis.

    Once you have that axis nailed then take note of the Axis Assignment settings you find best for that axis, set it to zero, then move on to the next axis and repeat for that and all other axis, one at a time. As per previous advice check out the FAQ tuning tips: https://www.xsimulator.net/community/faq/steps-to-create-a-motion-profile.228/

    Also disable filters until you have a really solid base profile dialed in, tweaking filters should be the very last step of refinement, once everything else is sorted.
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  11. Rodeo5150

    Rodeo5150 ROOKIE BUT LEARNING FAST Gold Contributor

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    I know. I understood that part. but you sdaid posting my SMC3 settings without video of how motors were performing was useless. thats the part of the meeesege Im referring to.
    Thank you
  12. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    I meant what I said, SMC3 has Out Mode options and when utilised those can give an indication if hardware is tracking well or not for the given settings, including things like poor tracking and overshoots, while a picture of settings such as this do not convey anything about how the hardware and selected settings respond:

    [​IMG]
  13. Rodeo5150

    Rodeo5150 ROOKIE BUT LEARNING FAST Gold Contributor

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    Right so are you saying that I should post video of smc3 testing as well is what I'm asking you the motors perform ing to the smc3 is what I'm asking should I post video of that too
  14. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    Pictures of Out Mode tests are probably more helpful than a video for SMC3.
  15. Rodeo5150

    Rodeo5150 ROOKIE BUT LEARNING FAST Gold Contributor

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    Okay I guess I'm going to need you to elaborate on out mode is that when you you switch it to sign or motion and the motors are actually moving and smc3 cuz that's what I thought you were talking about
  16. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    This is an example of poor tracking, indicating SMC3 parameters need to be refined:

    [​IMG]

    This is an example of improved tracking, your output should track the sine curve as closely as possible, have a look here for an explanation of all SMC3 parameters:

    [​IMG]