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Showroom Compact AC Servo 6DOF Rotary Stewart platform

Discussion in 'DIY Motion Simulator Projects' started by knaufinator, May 26, 2020.

  1. knaufinator

    knaufinator Member Gold Contributor

    Joined:
    Nov 16, 2017
    Messages:
    54
    Occupation:
    Computer Engineer - RFID Specialist
    Location:
    akron,ohio
    Balance:
    184Coins
    Ratings:
    +96 / 1 / -0
    My Motion Simulator:
    6DOF


    Had several requests on how the platform performs with a flight sim. I customized the DSC plugin to provide angular velocity data for all axis, and use that data to base the platform movement off of. If you are interested in how you can customize simtools plugins let me know... Hint... It requires decompiling
    • Like Like x 1
  2. knaufinator

    knaufinator Member Gold Contributor

    Joined:
    Nov 16, 2017
    Messages:
    54
    Occupation:
    Computer Engineer - RFID Specialist
    Location:
    akron,ohio
    Balance:
    184Coins
    Ratings:
    +96 / 1 / -0
    My Motion Simulator:
    6DOF


    Big changes this week, A new contributor to the project found that the SPI bus to the GPIO was un optimized pulling only 1Mhz, out of 10Mhz... with a small change the ESP32 now can drive the AC Servo controller faster, this was a bottleneck that was causing the motor to only spin at ~1/3 its max speed at times. now that has been overcome and the arms can swing at a much more scary rate! This video is the first where the modification has been done. I did end up adding some more filtering to Simtools side, as well tuned the S curve acceleration profile to take a little more time to speed up /slow down the platform, as the added snappiness was taking its toll on my body...
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    Last edited: Aug 24, 2020
  3. knaufinator

    knaufinator Member Gold Contributor

    Joined:
    Nov 16, 2017
    Messages:
    54
    Occupation:
    Computer Engineer - RFID Specialist
    Location:
    akron,ohio
    Balance:
    184Coins
    Ratings:
    +96 / 1 / -0
    My Motion Simulator:
    6DOF
    Custom plugin for MS Flight Sim 2020

    I have released the source code to this so other developers can improve on it, I have spent 1.5 hours to get it working this far. Several more hours just making a video and posting it to GitHub. I may not invest more time in it, but by all means,... take it and ....Dare I say..... FLY...



    https://github.com/knaufinator/MS-Flight-Simulator---Simtools-interface-

    This is a VERY early release as QUICKLY as I could get it out so people can start flying around in a motion sim for Microsoft Flight Sim 2020

    This project includes 2 parts
    1. FS2020_GamePlugin = The Simtools plugin, compile this and drop the file FS2020_GamePlugin.dll into the SimTools plugin updater app to install it, patch it as normal.

    2. Simvars = This is a Server application, this connects to MS Flight Simulator when you hit Connect, it Queries the correct data from the game only at 10Hz, anything faster and it was slowing my PC down, so change that at your discretion.... this needs to be improved. take a stab...this is a modified app from the SDK, so it has a bunch more functionality in it than what we are using. dont hit anything else other than Connect.... after it opens up, and it should consume the data automagically..the simtools plugin should see the data as soon as you do.

    Limits I used, i did not touch sway or surge yet...
    upload_2020-8-27_19-38-40.png
    • Like Like x 3