1. For downloading SimTools plugins you need a Download Package. Get it with virtual coins that you receive for forum activity or Buy Download Package - We have a zero Spam tolerance so read our forum rules first.

    Buy Download Package Now!
  2. Do not try to cheat our system and do not post an unnecessary amount of useless posts only to earn credits here. We have a zero spam tolerance policy and this will cause a ban of your user account. Otherwise we wish you a pleasant stay here! Read the forum rules
  3. We have a few rules which you need to read and accept before posting anything here! Following these rules will keep the forum clean and your stay pleasant here. Do not following these rules will lead to permanent exclusion from this website: Read the forum rules.

6DOF sim / linear actuator diy / sabertooth-arduino

Discussion in 'DIY Motion Simulator Projects' started by baykah, Dec 12, 2016.

  1. baykah

    baykah Active Member

    Joined:
    Sep 1, 2016
    Messages:
    119
    Location:
    Toulouse - France
    Balance:
    616Coins
    Ratings:
    +123 / 0 / -0
    My Motion Simulator:
    6DOF
    Hello everyone,

    I had this idea for a while, to do a motion simulator .., and then I saw SillentChill on youtube ... followed him here and began reading a lot of things.

    I wanted to do it low cost as most of us .., wanted to use wormgear ... and I saw Wanabeaflyer thread with drawing for a custom diy linear actuator ...

    I'm flying and building RC plane for the past 10 years, I have 4 years of 3D printer / arduino / sketchup experience, and I'm test engineer since 2007 working with test bench every day, building a 6DOF is possible.

    First of all, thanks to everyone here ... without this every things would be allmost impossible.

    My project :

    => 6DOF stewart platform
    => Wanabeflyer drawing as guideline for design
    => Sabertooth 2x32
    => Arduino uno x3 (thanks SMC3 & Rufus ...)
    => PSU DPS600PB (12V 47A 6€ per unit @ servershop24.de) I took 8 (the last 2 will be spare of used for my RC lithium charger)
    => Motors ! 3000rpm / 12V 270W
    https://smartmotor.en.alibaba.com/p...le.html?spm=a2700.7803228.1998738836.8.NeUjEE
    => I bought 6x 60A relay NO/NC, 1 for each actuator, I plan to link the end stop to those relay and cut 12V power in case of break.
    => I bought 1x 20A 220V relay for emergency stop button

    Current focus : First linear actuator build (then 5 more)
    @Wanabeeflyer : I added a bearing under the potentiometer puley to support load from the belt
    I will use M10 linkage at both end
    I'm printing NGEN from colorfab, it is PETG, I think it would be given the size I designed

    Waiting for delivery this week :
    => Motors
    => Sabertooth
    => PSU

    Attached Files:

    • Like Like x 11
  2. SilentChill

    SilentChill Problem Maker SimTools 2.0 Beta Tester

    Joined:
    Jul 19, 2014
    Messages:
    2,122
    Occupation:
    Railway Maintenance
    Location:
    Morecambe, Lancashire, England
    Balance:
    16,985Coins
    Ratings:
    +2,862 / 29 / -0
    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF

    Hi Matey nice progress :)

    Little bit of advice, you need to lose the rose joint from the bottom as it causes the actuator to twist as @SeatTime nicely pointed out to me :D You need to get some UV joints on there to stop any unwanted twisting
    • Informative Informative x 1
  3. wannabeaflyer2

    wannabeaflyer2 Well-Known Member

    Joined:
    Jun 12, 2015
    Messages:
    414
    Location:
    london uk
    Balance:
    5,648Coins
    Ratings:
    +598 / 4 / -0
    My Motion Simulator:
    2DOF, Arduino, Motion platform, 6DOF
    Hi @baykah very nicely done sir :) the great thing here is that no 2 actuators are the same, everyone brings something new and different to the design . the member of this forum Rock ..

    Great work and once again i see elements that will be great for newbies to take on .. even better to see more versions of our actuators being made ,,, by the way those motors seem dammm good bang for bucks items and if they do the job they could see this thing roll out big time ,

    The design allows for scaling up a bit in size and also down now if we could crack the Encoder feedback then we would
    have i believe is a very cost ,effective strong, yet simple working solution to the average joes motion simulator .. Not quite SCN speeds but then they kick butt in power LOL as Tim Tool Time taylor would say "MORE POWER" lol
  4. Tim McGuire

    Tim McGuire "Forever a work in progress"

    Joined:
    Jul 26, 2015
    Messages:
    246
    Occupation:
    Electrical Engineer (Student)
    Location:
    Canada
    Balance:
    1,816Coins
    Ratings:
    +289 / 1 / -0
    My Motion Simulator:
    3DOF, DC motor
    Great job, it looks really slick!

    I've also been rolling an actuator design in my head for a while (I don't like the amount of backlash that's present with the lever/wormgear solution). What's this encoder feedback problem you speak of? (feel free to PM if you don't want to hijack the thread)
  5. cyril69850

    cyril69850 New Member

    Joined:
    Nov 4, 2016
    Messages:
    21
    Location:
    France
    Balance:
    203Coins
    Ratings:
    +2 / 0 / -0
    My Motion Simulator:
    6DOF
    Nice job Baykah, Ill follow your progress really close as I'm building some of these actuator.
    BTW I've decide to go with the MY7712 motors because of the higher RPM for mine, I'll let you know the result.
    Keep up with the good work pal!
  6. baykah

    baykah Active Member

    Joined:
    Sep 1, 2016
    Messages:
    119
    Location:
    Toulouse - France
    Balance:
    616Coins
    Ratings:
    +123 / 0 / -0
    My Motion Simulator:
    6DOF
    thanks !

    Good advice !, I will look into this for the botom !
  7. mariano68

    mariano68 Active Member

    Joined:
    Nov 15, 2014
    Messages:
    584
    Occupation:
    builder contractor
    Location:
    Argentina
    Balance:
    3,630Coins
    Ratings:
    +380 / 2 / -0
    My Motion Simulator:
    2DOF, Arduino, 4DOF
    Welcome!
    Your actuator looks great! It would be nice if you can share the 3d printed parts.
    • Agree Agree x 2
  8. baykah

    baykah Active Member

    Joined:
    Sep 1, 2016
    Messages:
    119
    Location:
    Toulouse - France
    Balance:
    616Coins
    Ratings:
    +123 / 0 / -0
    My Motion Simulator:
    6DOF
    I will do, I'm just waiting to build the second one because I've changed the part allready twice.

    Once it is stable and working great, I will post them, if someone want the beta version, just ask
    • Like Like x 3
    • Winner Winner x 3
  9. Nick Moxley

    Nick Moxley Well-Known Member SimTools 2.0 Beta Tester

    Joined:
    Dec 13, 2013
    Messages:
    2,740
    Occupation:
    Owner/Operator- Moxleys Rantals
    Location:
    Winnipeg Manitoba Canada
    Balance:
    19,833Coins
    Ratings:
    +2,450 / 29 / -2
    My Motion Simulator:
    2DOF, 3DOF, DC motor, JRK
    Watching your build Very Closely. Appears you've found a way to make a Very Affordable Actuator. Keep it up.
    • Agree Agree x 1
  10. baykah

    baykah Active Member

    Joined:
    Sep 1, 2016
    Messages:
    119
    Location:
    Toulouse - France
    Balance:
    616Coins
    Ratings:
    +123 / 0 / -0
    My Motion Simulator:
    6DOF
    Hey

    Thanks to the guys working on SCM3 !

    Actuator #1 with sabertooth working !!

    • Like Like x 5
    • Winner Winner x 1
  11. baykah

    baykah Active Member

    Joined:
    Sep 1, 2016
    Messages:
    119
    Location:
    Toulouse - France
    Balance:
    616Coins
    Ratings:
    +123 / 0 / -0
    My Motion Simulator:
    6DOF
    Hello,

    Some progress !, got the rest of the ballscrew, however 1 present a smal defect and on 1 my father discmounted the slider of the ballscrew ... got it working again with 1/2 the balls .....

    Waiting for the Ujoint + 2x60 rail (that are ordered but manufacturer was not able to make them before holidays)

    It's getting good !

    Attached Files:

    • Like Like x 11
  12. SilentChill

    SilentChill Problem Maker SimTools 2.0 Beta Tester

    Joined:
    Jul 19, 2014
    Messages:
    2,122
    Occupation:
    Railway Maintenance
    Location:
    Morecambe, Lancashire, England
    Balance:
    16,985Coins
    Ratings:
    +2,862 / 29 / -0
    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF
    Well done coming along nicely
    • Agree Agree x 1
  13. baykah

    baykah Active Member

    Joined:
    Sep 1, 2016
    Messages:
    119
    Location:
    Toulouse - France
    Balance:
    616Coins
    Ratings:
    +123 / 0 / -0
    My Motion Simulator:
    6DOF
    Thanks !

    Great progress on your side also ;)

    I have a small drawback right now, 1 ball screw got a defect ... and the one my father dismounted only got know 2/3 of the ball inside as I had intialy ..

    I'm going for 2 new then .. hopping the seller will do something for me with the picture of the defective ball ...
  14. fafay

    fafay New Member

    Joined:
    Dec 19, 2016
    Messages:
    16
    Occupation:
    boulanger patissier
    Location:
    france albi
    Balance:
    221Coins
    Ratings:
    +4 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor, Arduino
    hi
    Which reducer you use???
  15. baykah

    baykah Active Member

    Joined:
    Sep 1, 2016
    Messages:
    119
    Location:
    Toulouse - France
    Balance:
    616Coins
    Ratings:
    +123 / 0 / -0
    My Motion Simulator:
    6DOF
    What do you mean by reducer ?
  16. lilted86

    lilted86 Member

    Joined:
    Dec 30, 2016
    Messages:
    70
    Location:
    Malaysia
    Balance:
    290Coins
    Ratings:
    +13 / 0 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino, SimforceGT
    awesome project!..keep it up!
  17. fafay

    fafay New Member

    Joined:
    Dec 19, 2016
    Messages:
    16
    Occupation:
    boulanger patissier
    Location:
    france albi
    Balance:
    221Coins
    Ratings:
    +4 / 0 / -0
    My Motion Simulator:
    3DOF, DC motor, Arduino
    @baykah
    The part which is in front of the motor
  18. Bernd Manger

    Bernd Manger Active Member

    Joined:
    Oct 6, 2015
    Messages:
    156
    Occupation:
    Measurement and control mechanic
    Location:
    Germany
    Balance:
    924Coins
    Ratings:
    +251 / 12 / -0
    My Motion Simulator:
    2DOF, DC motor, Arduino
    This part is called gearbox. ;)
    A linear actuator doesn't need one, the ballscrew does this job.
  19. baykah

    baykah Active Member

    Joined:
    Sep 1, 2016
    Messages:
    119
    Location:
    Toulouse - France
    Balance:
    616Coins
    Ratings:
    +123 / 0 / -0
    My Motion Simulator:
    6DOF
  20. mayhem

    mayhem Cobra Commander

    Joined:
    Sep 2, 2016
    Messages:
    39
    Occupation:
    IT
    Location:
    United States
    Balance:
    426Coins
    Ratings:
    +15 / 0 / -0
    My Motion Simulator:
    Arduino
    Great project. I'm still studying up for my first go and thinking about mirroring the same. Please keep posting your progress and especially the gotchas!