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Showroom ODrive Turnigy 190kv BLDC 6DOF - Here we go again

Discussion in 'DIY Motion Simulator Projects' started by SilentChill, Oct 12, 2019.

  1. SilentChill

    SilentChill Problem Maker

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    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF
    Time for me to upgrade so I have been watching and reading to see who I can copy next :D and it has to be the ODrive path.

    I was going to go 24DC but after seeing @PeterW and @Carelsbergh_Stijn projects my mind was made up.

    So I'm in the early stage and just wanted to get my head round the ODrive and how all this shit works and I have got it working with FlyPT mover (video below)

    Reason I chose these is they are very small and I can make a very small compact actuator for my limited head room.

    I thought about the SFX servo motors and Thanos AASD but that's just not for me and that horrid whine would drive me crazy.

    So here's what I have so far and a plan in my head which I will have to make in sketchup at some point because I will be 3D printing a lot of my parts.

    20191012_211242.jpg 20191012_211237.jpg 20191012_211020.jpg 20191012_210910.jpg 20191012_211353.jpg 20191012_211348.jpg 20191012_210945.jpg 20191012_211012.jpg 20191012_211004.jpg



    Cheers all and here's to the next one !!
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  2. Ads Master

    Ads Master

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  3. JAD

    JAD Active Member

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    Now you got me thinking of a do over!
    I'm liking your hardware choices, will watch with great interest.
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  4. PeterW

    PeterW alias Wickie

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    My Motion Simulator:
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    Man, you really did it!! :thumbs I can hardly believe how fast you got this far!
    You will see the great potential in the BLDC motors and in the Odrive and I am glad that someone that is as famous as you would like to go this way.
    With the setting of the Odrive parameters I can help you and maybe also Stijn and Zennix (in the Odrive forum) .
    I already walked through the Valley of Tears - and think you don't have to do same. The basic work is already done.
    I once created a table with some important Odrive settings that can help a lot understanding the syntax of the setting-commands:
    https://www.dropbox.com/s/0j904viqwh77yyb/Odrive-commands.ods?dl=0
    If you want to use limit switches - and I think so, you have to use a Odrive-Software branch that supports the Endstops. I could forward you a version I got from Zennix that works stable with the endstops.

    Wickie
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  5. PeterW

    PeterW alias Wickie

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    I have just seen that you ordered 190kV engines. Weren't you going to order the 290kV engines? The 190KVs are little slower but could work anyway
    Wickie
  6. hannibal

    hannibal Active Member

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    My Motion Simulator:
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    effin awesome.. i like this community inspires each other..
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  7. SilentChill

    SilentChill Problem Maker

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    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF
    Yes I will need the end stops I have read the forum over at Odrive is it Watermelon whos branch that has the end stops built in ? I'll be sure to give you a shout as soon as I'm somewhere near having to flash the new firmware

    I changed my mind and went for more torque and higher voltage so I have a 42v PSU which I will turn down hopefully to a max of 37v to match the motors. I will still have a over 6000rpm to play with which is more than enough but I will have more torque, I think will be close to 3N.m a motor. Maths never my strong point lol

    P.s. Famous ?? Haha make me blush :p
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  8. hannibal

    hannibal Active Member

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    My Motion Simulator:
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    jeez 6000 rpm? me thinks @SilentChill is making ejection seat simulator.. :p
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  9. hideki

    hideki Member

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    My Motion Simulator:
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    just WOW!! Those litle motors cost just 88 euros in Spain. Are you sure they will take all the load of your rig? this forum is always surprising. Honestly, what a Great work SilentChill...
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  10. wannabeaflyer2

    wannabeaflyer2 Well-Known Member

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    HeyHey @SilentChill early days yet mate and already showing the hall marks of a man on a mission , Nice work matey :) and so here's to you paving the way to another generation of Sim platforms ...very nicely done :)
  11. Gadget999

    Gadget999 Active Member

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    My Motion Simulator:
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    love to see your dedication to the sim ! this is your third go at actuators

    what is it about your current actuators that made you decide to change

    are you using a 1605 pitch ball screw ?
  12. SilentChill

    SilentChill Problem Maker

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    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF
    So I've been slowly slowly making progress, no speed records this time.

    Everything has been printed at 30% infill and with PLA+. I'm quite impressed how solid and strong the parts are.

    Most will be covered by 90mm ali tube for more strength.

    Just nee to flash my odrive and get it moving

    Attached Files:

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  13. SilentChill

    SilentChill Problem Maker

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    My Motion Simulator:
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    Hello all so my shopping list so far, I've included pretty much everything. I really wanted to be able to make it for £2000 all in and I'm getting a little too close lol


    Motors 190kv x 6 https://hobbyking.com/en_us/turnigy-aerodrive-sk3-6364-190kv-brushless-outrunner-motor.html £351.00
    Encoders x 6 https://www.mouser.co.uk/ProductDet...z65aA1C39DL-2tLb8Acv0JRC3XQIx5FRoCgLgQAvD_BwE £112.20
    Odrives x 3 https://eu.odriverobotics.com/shop/odrive-v36 £501.00
    M4 Brass inserts https://www.ebay.co.uk/itm/M4x4-M4x...hash=item521e9d7165:m:mvmio3WtxKd4JSPO7pYD76g £6.45
    M4 Countersunk 20mm https://www.ebay.co.uk/itm/M3-M4-MA...hash=item1cb66c96f9:m:mMC9guzFoZ_FnQ0yIeEtDxw £12.60
    36v 540w PSU x 3 https://www.ebay.co.uk/itm/Switchin...=1930759141974b68a37f13e34646be77f42309130da2 £104.94
    Filament x 10 £129.50
    Crimper and Pins and Plugs £16.99
    Bullet Connectors £5.86
    80mm M5 Screws £6.59
    ST Link £3.99
    Aluminium Welding Rods https://www.amazon.co.uk/gp/product/B07DS3P7Q8/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 £10.99
    Grease Nipples M6 https://www.ebay.co.uk/itm/M6-X-1-S...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649 £2.60
    90mmx3000mm Auminium Tube https://www.ebay.co.uk/itm/Aluminiu...var=584726524087&_trksid=p2057872.m2749.l2649 £92.34
    M5 1000mm Threaded bar x10 https://www.ebay.co.uk/itm/1M-300mm...var=420960510097&_trksid=p2057872.m2749.l2649 £15.24
    UJ Bearing https://www.ebay.co.uk/itm/Land-Rov...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649 £33.74
    12mmx1mmx1000mm Tube https://www.ebay.co.uk/itm/Aluminiu...var=553004518011&_trksid=p2057872.m2749.l2649 £19.34
    Rose Joint x6 https://www.ebay.co.uk/itm/POS12-12...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649 £23.70
    U Bolts x 24 https://www.orbitalfasteners.co.uk/...ld-steel-bright-zinc-plated-nuts-not-supplied £12.00
    PSU Power adaptor https://www.ebay.co.uk/itm/IEC320-M...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649 £16.80
    25mm3mmx1000mm Ali Tube https://www.ebay.co.uk/itm/Aluminiu...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649 £23.34
    600mm 1605 Ballscrew https://www.ebay.co.uk/itm/Ball-Scr...hash=item341652b57d:m:m9gCsn7qsinTsn915nO7Xmw £123.90
    Circlip Set https://www.ebay.co.uk/itm/300PCS-C...013619?hash=item3d95d8b9f3:g:qMwAAOSwUaVdMS9S £5.49
    Circlip Pliers https://www.ebay.co.uk/itm/4-Piece-...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649 £2.89
    8mmx10mm Coupler x6 https://www.aliexpress.com/item/2pc...123.html?spm=a2g0s.9042311.0.0.7ef34c4dgCqaZR £13.47
    FK End Bearing https://www.aliexpress.com/item/FK1...466.html?spm=a2g0s.9042311.0.0.7ef34c4dgCqaZR £32.31
    Limit Switches https://www.aliexpress.com/item/10p...708.html?spm=a2g0s.9042311.0.0.7ef34c4dgCqaZR £7.02
    14AWG Cable 10 metres https://www.aliexpress.com/item/10m...720.html?spm=a2g0s.9042311.0.0.7ef34c4dgCqaZR £16.58
    Igus GSM-1214-20 bearings https://www.igus.co.uk/product/?artnr=GSM-1214-20 £32.98
    30 metres 30x30x3 Aluminium Box Section https://www.aluminiumwarehouse.co.uk/30-mm-x-30-mm-x-3-mm-5m-aluminium-square-tube £222.48
    Lots of nuts and bolts which i cant remember what I bought
    £1,958.33
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    Last edited: Mar 27, 2020 at 12:14
  14. gigi

    gigi Active Member

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    Wow thanks silentchill for the shopping list. Just today I've created a new thread asking information about this project.
    One question :eek:nly one psu is enough for six motors?
  15. SilentChill

    SilentChill Problem Maker

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    Yes it is total overkill its 6000watts !
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  16. gigi

    gigi Active Member

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    and output voltage?
  17. SilentChill

    SilentChill Problem Maker

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    All the details are I'm the picture in first post
  18. gigi

    gigi Active Member

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    I just see 42v 137,4 A
    I see sk3 turnigy brushless. it can work at 37v but it also specify with 10s lipo battery. 10s full charged should have an output voltage of 42A (4,2v x cell). so it’s ok. but i also see that this motor have a max current of 65A . 65x6 = 390A . what I wrong?
  19. SilentChill

    SilentChill Problem Maker

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  20. JAD

    JAD Active Member

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    How are the IGUS bearing slides working out for you?
    I guess the bearings are supplied with good tolerance and ID is within stated spec. I see on the suppliers website the ID is -0 +something
    but i thought the OD of Alu tube is all over the place and could be supplied with + or - something and perhaps cause the bearings to be too tight if a touch oversize.
    Have you found all the bearings and tube you recieved to play nice with each other?
  21. SilentChill

    SilentChill Problem Maker

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    My Motion Simulator:
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    Yeah they are slightly out but on the wider side so hopefully they should be ok, a tiny bit of play on the main shaft 25mm , the 12mm Igus seem to be a great fit
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