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Showroom 4Dof upgradeable to 6Dof

Discussion in 'DIY Motion Simulator Projects' started by mariano68, Aug 9, 2017.

  1. mariano68

    mariano68 Active Member

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    My Motion Simulator:
    2DOF, Arduino, 4DOF
    First of all, I want to thank the usual suspects ( @SilentChill , @SeatTime , @wannabeaflyer2 , @Pit , @RufusDufus and @BlazinH for the SCM3 classic and Sabertooth mod ) and some new ones @Hoddem , @Pierre Lalancette @Grigory and some more for sure.
    Well, after my first 2dof, I wanted more (heave over all) so I thought about building something like this:
    dirtonsim.jpg
    But smaller... Also wanted to do an structure that can be easily modified to convert in a 6Dof as I was sure that I will want to keep doing things (it is a lot more fun for me to read, study, research and finally build than to actually use it :p ).
    As always, it is really difficult for me to get good motors, usually motors and things like that are retained in customs, so, last time I used modified electric jacks, now the jacks aren't powerful enough, so the next available motors are 1hp winch motors!
    IMG_20161231_105911731.jpg IMG_20161231_110247019.jpg IMG_20170116_160209125.jpg

    I had to wait for 6 months until the local dealer got the new winches, in the meantime I got from China some 1605 ballscrews, a nice racing seat a pair of Sabertooth, etc...
    IMG_20161225_201712105.jpg

    After some research, I decided to build linear actuators using winch motors, custom made 22/25mm carbon shaft and UHMW lathed parts.
    5.jpeg 7.jpeg 6.jpeg

    So here I am, today I got the upper structure ready and I decided to start my build thread.


    8.jpeg 9.jpeg 10.jpeg 1.jpeg
    Wheel and pedals can be regulated, it is black powder coated, it is not the lighter structure, but not the heaviest (about 30kg with the G27).

    I will need a lot of help on the electrical part!
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  2. Ads Master

    Ads Master

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  3. mariano68

    mariano68 Active Member

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    My Motion Simulator:
    2DOF, Arduino, 4DOF
    Some power for the motors and buttkickers LFE (I have two LFE's but I think it is a little too much.. )

    20993410_1247746132019671_113626892_o.jpg 20993283_1247746162019668_254207372_o.jpg 21035024_1247746112019673_553728384_o.jpg
    Behringer ep2500 (one channel 2500 watts or two channel x 1200w each) I did some test with the Ericson and one of the winches in rapid changes of rotation on SCM3 and it doesn't even get warm (it is passive, no sound at all).
    Ericson 24v 1200wats, one for each Sabertooth.
    • Like Like x 3
    Last edited: Aug 21, 2017
  4. mariano68

    mariano68 Active Member

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    My Motion Simulator:
    2DOF, Arduino, 4DOF
    Some pics of the upper frame before paint job:
    WhatsApp Image 2017-08-03 at 1.58.17 PM.jpeg WhatsApp Image 2017-08-03 at 1.58.28 PM.jpeg WhatsApp Image 2017-08-03 at 1.58.45 PM.jpeg
    • Like Like x 2
  5. SeatTime

    SeatTime Well-Known Member

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    My Motion Simulator:
    DC motor, Motion platform, 6DOF
    I hope your not using my actuator design for a 4 DOF. I'm guessing you have modified it to suit :think.
  6. mariano68

    mariano68 Active Member

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    My Motion Simulator:
    2DOF, Arduino, 4DOF
    I appreciate your interest :)
    It is not exactly the same, also the fix to the lower platform on the rear actuators is different. Anyway, if it doesn't work , I will build a 6dof, I already have almost all the parts.
  7. mariano68

    mariano68 Active Member

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    My Motion Simulator:
    2DOF, Arduino, 4DOF
    Daily joy ... I found them on an old small shop 35 km away from home... isn't them Lovely ? hug:

    IMG_20170823_152910113_HDR.jpg
    • Winner Winner x 2
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  8. RandomCoder

    RandomCoder Active Member Gold Contributor

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    Was it at a bargain price too ;)
  9. mariano68

    mariano68 Active Member

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    My Motion Simulator:
    2DOF, Arduino, 4DOF
    It was a bargain for the prices we have here, I paid us20 each...
    • Winner Winner x 2
  10. perdixero

    perdixero Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino
    Que bueno Mariano!:
    Con que nombre se lo conoce?, o repuesto de qué es?.


    Good!
    With what name is it known ?
  11. mariano68

    mariano68 Active Member

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    My Motion Simulator:
    2DOF, Arduino, 4DOF
  12. alexdixey

    alexdixey Member Gold Contributor

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    Gardiner, NY USA
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    My Motion Simulator:
    3DOF, DC motor, Arduino
    Buen Trabajo!!
    Tienes video??
  13. mariano68

    mariano68 Active Member

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    My Motion Simulator:
    2DOF, Arduino, 4DOF
    Thanks!:cheers
    No, no video or actuator ready until a pair of weeks at least.
  14. mariano68

    mariano68 Active Member

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    My Motion Simulator:
    2DOF, Arduino, 4DOF
    Special thanks to @Pit and @Ben V for their knoledge and experiences with winches! Also my greatest inspiration @douwe ( Douwe Jippes, check his work on actuators and original 6dof from 10 years ago!!! https://jippes.home.xs4all.nl/hi6sim/index.html )

    Introducing... "The winchtuator"!!! (beta working model) lift more than 50kg at great speed and noise!:p:grin:grin:cheers
    21314629_10214763107457793_2611750460588282342_n.jpg 21370989_10214763106977781_5713747242612490954_n.jpg
    I will try to get a vid tomorrow trying to lift some weight...:popcorn
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  15. mariano68

    mariano68 Active Member

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    My Motion Simulator:
    2DOF, Arduino, 4DOF
    The upper rose joint mount was made in UHMW in a lathe, it goes really tight inside the carbon tube, and once I screw the rose joint it is almost impossible to get it out, but I will add a little screw to mechanically fix it.
    21369462_10214768516553017_333212503885385318_n.jpg

    This is a Pneumatic Cylinder Mounting, it will be used in the rear actuators as I only need them to tilt and avoid any other movement.
    21366649_10214768442311161_1890969383289041521_o.jpg
    • Like Like x 3
  16. mariano68

    mariano68 Active Member

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    My Motion Simulator:
    2DOF, Arduino, 4DOF
    Added pulley system and end-stop floating unit (sound clever ;) )
    The idea is to have a little more travel for the inertia that can get the nut, and avoid damage to the endstop, just put a longer spring in the lower part as it is the part where inertia will hit harder.

    IMG_20170921_145737924_HDR.jpg IMG_20170921_145809789.jpg


    The pulley was lathed so it can fit over the potentiometer screwable part to lower the lever force over the shaft.

    IMG_20170921_184836032.jpg

    Also added a little screw to fix the carbon shaft.
    IMG_20170921_184856360.jpg
    • Like Like x 3
  17. mariano68

    mariano68 Active Member

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    My Motion Simulator:
    2DOF, Arduino, 4DOF
    I'm changing the axial bearings in the lower part of the actuator for a more standard FK12 bearing, and if I am not satisfied, I have a little more radical redesign...
    WhatsApp Image 2017-10-07 at 10.30.05 AM.jpeg
  18. mariano68

    mariano68 Active Member

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    My Motion Simulator:
    2DOF, Arduino, 4DOF
    Ok, changed the bearings for FK12, also some modifications on the actuator, ready all the lower parts, I hope next week I can have 2 of them ready and mounted in the sim. Already tested the modified actuator with Simtools and works fine.
    IMG_20171117_155038047.jpg IMG_20171117_194005589.jpg IMG_20171117_194052531.jpg IMG_20171117_194150975.jpg

    Also checked where to mount one Buttkicker LFE
    IMG_20171117_155346637.jpg
    • Like Like x 4
  19. mariano68

    mariano68 Active Member

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    My Motion Simulator:
    2DOF, Arduino, 4DOF
    Little update to my project.
    I managed to lower the weight of the sim by 22kg (48.5 pounds) it took me 3 and a half months of hard work...
    • Like Like x 3
  20. Gadget999

    Gadget999 Active Member

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    My Motion Simulator:
    2DOF, DC motor, Arduino, 6DOF
    How much were the winch motors ? What do you use to control them ?
  21. mariano68

    mariano68 Active Member

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    My Motion Simulator:
    2DOF, Arduino, 4DOF
    U$S100 each locally
    With sabertooth 2x32 at 24v