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 Now a Download Plan!
  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.
  4. All new posts and threads should be written in English. Please do not create dual posts in other languages. If you are not a master of the English language you can use an external service to create a translation of your words, for instance, Google translate or DeepL.
    Due to low activity, we've also closed the french section.
    Dismiss Notice

Diablo2112's 4-axis SFX-100 build

Discussion in 'DIY Motion Simulator Projects' started by diablo2112, Jul 2, 2019.

  1. diablo2112

    diablo2112 Member Gold Contributor

    Joined:
    Apr 12, 2017
    Messages:
    57
    Location:
    USA
    Balance:
    646Coins
    Ratings:
    +128 / 0 / -0
    My Motion Simulator:
    2DOF, Motion platform, 4DOF
    There's a very good parts list for US builders on the RaceDepartment thread. Here's the link:

    https://www.racedepartment.com/thre...-simulator-thread.159524/page-98#post-2899157

    And you may not be aware of the project website, which contains complete instructions, including links to a build list for various countries. Here's the link to the documents and instructions on the project website:

    https://opensfx.com/documentation/
    • Like Like x 1
    • Agree Agree x 1
  2. thefost

    thefost Member

    Joined:
    Sep 20, 2019
    Messages:
    30
    Balance:
    216Coins
    Ratings:
    +13 / 0 / -0
    Thanks, that racedepartment shopping list is super helpful.
  3. diablo2112

    diablo2112 Member Gold Contributor

    Joined:
    Apr 12, 2017
    Messages:
    57
    Location:
    USA
    Balance:
    646Coins
    Ratings:
    +128 / 0 / -0
    My Motion Simulator:
    2DOF, Motion platform, 4DOF
    A couple of pics to add to my settings for use of a 0.6mm nozzle to print parts in under 100 hours. See my post, above, for details. These pics document how changes to your slicer can effect surface finish. PM me or drop a question here if you need further explanation/info.

    [​IMG]

    [​IMG]
    • Useful Useful x 2
    • Informative Informative x 1
  4. Hoddem

    Hoddem Well-Known Member

    Joined:
    Sep 27, 2016
    Messages:
    357
    Occupation:
    Engineer
    Location:
    Minnesota, USA
    Balance:
    3,038Coins
    Ratings:
    +597 / 2 / -0
    hey @diablo2112, awesome build. I am starting my own actuator build and I was wondering if you feel the seat motion is worth having in addition to the actuators. I already have a 2dof rig and I'm torn on whether to incorporate the seat motion into my new build.. Also do you run roll on your seat motion, or do you feel that it is unnecessary because the chassis already does roll. I could see using the chassis actuators for pitch, roll and heave and then just the seat for pitch.
  5. Lgars39

    Lgars39 Member

    Joined:
    Aug 13, 2015
    Messages:
    8
    Location:
    Jura
    Balance:
    - 12Coins
    Ratings:
    +7 / 0 / -0
    My Motion Simulator:
    2DOF
    With all this beautiful material, you will be able to blow the record
  6. sberns

    sberns Member Gold Contributor

    Joined:
    Jun 8, 2016
    Messages:
    76
    Balance:
    417Coins
    Ratings:
    +67 / 1 / -0
    My Motion Simulator:
    3DOF, SCN5, Arduino
    @Hoddem i also started with a seat mover and then incorporated other DIY systems, including the SFX project. I can say that IMO the two systems work EXTREMELY well together and I would definitely consider trying to get them to work in tandem. If I turn off my seat mover, the sfx system is still awesome, but things feel more natural and immersive with both working together.

    My setup:
    Seat mover: Surge, Sway
    SFX: Heave, Pitch, Roll
    GSeat: Surge, Sway
    Belt Tensioner: Surge
    • Like Like x 2
  7. Hoddem

    Hoddem Well-Known Member

    Joined:
    Sep 27, 2016
    Messages:
    357
    Occupation:
    Engineer
    Location:
    Minnesota, USA
    Balance:
    3,038Coins
    Ratings:
    +597 / 2 / -0
    So with your seat mover and the sfx100 what is each doing when you turn left at high speed. I assume the rig rolls right, but then does the chair roll left for sway?
  8. sberns

    sberns Member Gold Contributor

    Joined:
    Jun 8, 2016
    Messages:
    76
    Balance:
    417Coins
    Ratings:
    +67 / 1 / -0
    My Motion Simulator:
    3DOF, SCN5, Arduino
    When turning, SFX (roll) represents the movement of the chassis and hence it moves the rig in the same direction as the turn; it’s not usually big movement (ie usually the cars we drive in a sim have stiff suspensions and do not have much body roll). The Gseat and seat mover attempt to represent the g-forces experienced, and hence tilt only the seat (and apply body pressure) in the opposite direction to the turn. Again, not big movements (as I find less is more) but when tuned properly, it all feels very natural and immersive.
    • Agree Agree x 1
  9. cubexxx

    cubexxx Member

    Joined:
    Oct 4, 2019
    Messages:
    32
    Balance:
    209Coins
    Ratings:
    +16 / 0 / -0
    My Motion Simulator:
    3DOF, AC motor, Arduino
    Hi @diablo2112, I've recently completed my SFX-100 build and am currently using simfeedback with the Leonardo controller. I understand you have used both this and the Thanos AMC-AASD15A controller (with simtools). Could you maybe elaborate in more detail the difference in achievable "perceived motion quality"? Would I mostly would like to have would be "fast and responsive, but still smooth and without jerkiness and stuttering". Now while the leonardo controller is imho sufficiently fast, there is some jerkiness and "not-so smooth" feeling. Also, did you perceive any differences regarding EMI? Also, I like the "traction loss"-effect in simfeedback. Can you replicate that with simtools?
    Thanks
    Last edited by a moderator: Dec 6, 2019
  10. viper20

    viper20 New Member Gold Contributor

    Joined:
    Nov 7, 2019
    Messages:
    4
    Balance:
    38Coins
    Ratings:
    +0 / 0 / -0
    My Motion Simulator:
    4DOF
    Hey @diablo2112

    Would you kindly post your settings for Simtools for Assetto Corsa?

    Thanks!
  11. diablo2112

    diablo2112 Member Gold Contributor

    Joined:
    Apr 12, 2017
    Messages:
    57
    Location:
    USA
    Balance:
    646Coins
    Ratings:
    +128 / 0 / -0
    My Motion Simulator:
    2DOF, Motion platform, 4DOF
    I'm running the same settings in Simtools for AC. Haven't used it much, so haven't spent much time tuning for that sim.
  12. diablo2112

    diablo2112 Member Gold Contributor

    Joined:
    Apr 12, 2017
    Messages:
    57
    Location:
    USA
    Balance:
    646Coins
    Ratings:
    +128 / 0 / -0
    My Motion Simulator:
    2DOF, Motion platform, 4DOF
  13. wannabeaflyer2

    wannabeaflyer2 Well-Known Member

    Joined:
    Jun 12, 2015
    Messages:
    663
    Location:
    london uk
    Balance:
    7,559Coins
    Ratings:
    +874 / 4 / -0
    My Motion Simulator:
    2DOF, Arduino, Motion platform, 6DOF
    Hi @diablo2112 quick question, My SFX type 4DOF is running great and proving to be an amazing simulator , i have only one issue of note , and thats the feeling of the frame twisting slightly when the actuators are powered down ,, my frame is 40 x 90 ,solid build but this little thing is something im trying to reduce by adding extra cross braces .. is this something you have noticed with your setup :)
  14. diablo2112

    diablo2112 Member Gold Contributor

    Joined:
    Apr 12, 2017
    Messages:
    57
    Location:
    USA
    Balance:
    646Coins
    Ratings:
    +128 / 0 / -0
    My Motion Simulator:
    2DOF, Motion platform, 4DOF
    I've not had any issues with flex or twisting of my frame. It's mainly 8040 with some 4040 cross bracing.
  15. misoswan

    misoswan Active Member Gold Contributor

    Joined:
    Jun 27, 2014
    Messages:
    247
    Balance:
    849Coins
    Ratings:
    +60 / 1 / -0
    My Motion Simulator:
    3DOF, Arduino, JRK
    i read so sfx-100. that they are noisy.stepper motor or inventer.it's true or it's silent? thanks
  16. Luka Usenicnik

    Luka Usenicnik New Member

    Joined:
    Dec 8, 2016
    Messages:
    10
    Occupation:
    Mechanical Engineer
    Location:
    Žiri
    Balance:
    97Coins
    Ratings:
    +10 / 0 / -0
    My Motion Simulator:
    3DOF
    Hi everyone, I've designed some new top and bottom mounts for the SFX100 and CNC'd them out of aluminum. It eliminates any flex from the actuators and improves overall performance :) The sliders are CNC'd out of a self lubricating plastic called OILON to prevent any wear and tear.
    As you can see the linear bearing sits inside the bottom cover and makes the actuators look cleaner :)
    Next thing in production are CNC motor mounts.
    I can still make these parts if anyone is interested in getting them for theirselves.

    Attached Files:

    • Like Like x 4
  17. prodigy

    prodigy Burning revs

    Joined:
    Oct 27, 2013
    Messages:
    456
    Location:
    Croatia
    Balance:
    6,629Coins
    Ratings:
    +398 / 4 / -0
    My Motion Simulator:
    2DOF, 3DOF, AC motor, SCN5, JRK
    @Luka Usenicnik do you make the "bump stop" part too? It is also usually 3D printed part inside the profile.
  18. Luka Usenicnik

    Luka Usenicnik New Member

    Joined:
    Dec 8, 2016
    Messages:
    10
    Occupation:
    Mechanical Engineer
    Location:
    Žiri
    Balance:
    97Coins
    Ratings:
    +10 / 0 / -0
    My Motion Simulator:
    3DOF
    Hi, yes its possible to make those parts too :)
  19. wannabeaflyer2

    wannabeaflyer2 Well-Known Member

    Joined:
    Jun 12, 2015
    Messages:
    663
    Location:
    london uk
    Balance:
    7,559Coins
    Ratings:
    +874 / 4 / -0
    My Motion Simulator:
    2DOF, Arduino, Motion platform, 6DOF
    Hi @diablo2112 thnaks for the feedback , the twisting i get is more feeling rather than anything dramatic , the frame is quite solid so i guess its just where the Cockpit is suspended by 3 legs sometime depending on how quickly they backdrive without power , bought an extra 90 x 40 x 580 cross brace so all in all it will have 4 .. will see how that goes :) these things are beast though and im loving it ( now if only i could stay on the track long enough to be called a sim racer of sorts LOL )
    • Like Like x 1
  20. Roger Graham

    Roger Graham New Member Gold Contributor

    Joined:
    Oct 23, 2019
    Messages:
    8
    Location:
    Box Hill, Victoria
    Balance:
    172Coins
    Ratings:
    +2 / 0 / -0
    Hi @diablo2112, this is some nice inspiration!

    What did you do with all of the excess cable length from the actuators? Is it just curled up inside the Nave rack, or did you go the extra mile and cut the various cables to the correct length?

    Do the servo controllers get at all warm inside the Nave case, i.e. do you need to have any fans turned on?
    Last edited: Jan 30, 2020