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The SimFeedback-AC DIY Motion Simulator thread

Discussion in 'Sim Racing Hardware' started by sjb266, Sep 17, 2018.

  1. d69morpwr

    d69morpwr

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    Very interested in this. Has anyone thought of adding one more actuator for traction loss or isn't that possible with this?
     
  2. sdubbin

    sdubbin
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    Anyone got any uk suppliers for the
    Hi, did the one on the left meet the requirements, They look the same
     
  3. callumjtc

    callumjtc

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    Wow, will be following this with interest, makes my DIY pedal project look a bit weak...
     
  4. HugoB

    HugoB
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    I’m also planning to add more actuators in the future so I asked in the german forum and the creator Michael said he is currently testing a version of the software that supports up to 8 actuators using two Arduino controllers. He uses the software to control seatbelt tensioner and RTL if I remember correctly and as soon as it’s stable it will be available to the public. I’m not sure how it will work, but I’m hoping to build 8 total actuators, 4 for the corners, 2 for front and rear traction loss, 1 for surge and 1 for seatbelt tensioner. But I’d wait until more is known about the double controller and apparently they intend to make a smaller version of the actuator for TL etc. that don’t need the same lifting spec.
     
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  5. sjb266

    sjb266

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    Being in Australia some of the shipping prices are cost prohibitive... so...

    Just like I did with the extrusion for my rigs, I am planning on going the cheap option first by sourcing all Chinese parts from Alibaba, AliExpress, and Ebay.. Then if they fail.. buy the expensive stuff... I will also probably order the MIGE model of motor and driver..

    The inner profile of the German extrusion is slightly different to the Chinese stuff so I will order both and then edit the slider to fit the Chinese extrusion if need be..

    This should open a few more door for those looking to do it a bit cheaper. Obviously quality of moving parts will be a huge factor but i'm willing to give it a crack..

    I will provide links and cost breakdowns as they come to hand.
     
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  6. HoiHman

    HoiHman
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    Yes, they have the right specs
     
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  7. Mascot

    Mascot
    Card-carrying mod whore

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    I've been looking closer at the actuator assembly instructions and, as is often the case with these things, it seems like they could be a little clearer and a little more specific at times (eg "turn the slider near the end of the ball screw (extended position) - yet not too far!" WTF?) but maybe it's all a lot clearer with the parts in hand.

    The trickiest bit for home assembly might be fitting the M8 helicoils (threaded inserts) into the extrusion ports. These can be a right bugger to do for a DIYer if a suitable thread isn't cut into the port first.

    [​IMG]

    Since there's a 3DP 'cap' fitted at each end of the extrusion I wonder if it would have been possible to use 4no lengths of M8 threaded bar ('studding') with nuts at each end to clamp the whole assembly together, instead of using 4no M8 screws at each end. The design of the 3DP 'end caps' could be amended to include location nodes on the face that sits on the end of the extrusion to keep it located properly and locked in position once the nuts are tightened.

    I dunno, just a thought. Maybe people won't struggle with fitting the helicoils and I'm worrying about nothing..! @HoiHman, how did you find them when you assembled your actuators? Tricky or no problem at all?
     
  8. Steve D

    Steve D
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    And that's how it start's mate! :roflmao::roflmao::roflmao: (I've even started digging in to SimTools 2.0 ;))

    Am therefore watching this develop with both huge interest plus great admiration for those who have already provided lots of useful info and / or 'dived right in' without hesitation!

    However due to time-constraints and not being particularly DIY-orientated, I'll probably be looking for someone to source and assemble the actuators and key parts for me, whether they are here in the UK or in the EU, for which they would be properly re-numerated. Believe our good friend on the other side of the planet, @anton_Chez, was looking for a similar arrangement as well.
     
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  9. Mascot

    Mascot
    Card-carrying mod whore

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    Amen to that. Sim racing is like diving wallet-first into a guilt-lined rabbit hole with the suction power of an imploding star... and we wouldn't want it any other way..! :p

    There's nothing in this project that looks complicated at all - even the electronics and wiring seem remarkable simple (famous last words...). The 3DP parts will probably be the biggest faff for those of us without easy access, but it's hardly insurmountable.

    Crikey, I wish there were projects like this when I was back at design school all those years ago. I had access to an on-site multi-million pound state-of-the-art facility with CNC lathes and milling machines, shot-blasting booth, waterfall powder-coating rooms, welding equipment.. you name it. And a fleet of eager technicians all willing to lend a hand. I'd have loved to design and build my own sim racing equipment but there wasn't much call for it when Microprose Grand Prix was still in its infancy, lol.
     
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  10. sjb266

    sjb266

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    Yes I think this profile from Germany is a sticking point for those of us south of the Equator!.. it's slightly different from most of the more readily available 100100 that originates from China. Like i posted above I will investigate other options and provide info.. Worst case is tap the ends with M12 and then the inserts should go right in.. a bit of double dutch but easy enough...
     
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  11. HoiHman

    HoiHman
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    Fitting the helicoils is not that difficult, you can even do it without a tap.

    Just make sure you fit them straight. In order to make sure, use a very long M8 bolt and check it's alignment on every side.

    3D printing hower: Things can go wrong, even with someone who has a lot of experience like me.

    This morning i was expecting to find a perfect printed slider, but saw this instead

    [​IMG]

    Not sure what problem is atm
     
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  12. Mascot

    Mascot
    Card-carrying mod whore

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    Do you have a pet cat?
     
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  13. HugoB

    HugoB
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    Wow.. what a sight to behold!

    ...and since I’m using the same printer: could you share with us the results of your investigation? Did the first few layers print correctly, where did it start? Almost looks like the extruder just started pumping filament with no holds back...? Makes me want to install an IP camera in front of my printer to watch the progress and record for future evaluation..

    Btw did you manage to control an actuator with the SimFeedback software yet? Hope your new 80/20 rig is finished soon!
     
  14. Ringorian

    Ringorian

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    On its way, testing at the moment, will take some time :)
     
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  15. cprelot

    cprelot

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    ok cool make sense for me since we need a good speed/travel ratio and 100mm is good enough to fell the car effects in most case scenario
    but for Dirt Rally or perhaps flight sim we can benefit with more travel

    do they mention on the forum, why they not going with more travel on this setup?
    is it because the hardware hard to fit? performance/software issue? or we just can update the size of the housing and ball screw longer?

    thanks
     
  16. Moxley6969

    Moxley6969

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    Having checked the parts in Fusion and the hardware specs, Why not modify the top printed cap to accept m12 to begin with, Screw the Inserts.
     
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  17. Ringorian

    Ringorian

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    10 cm is a lot , and when i drive dirt rally i dont think that i ever reach em ... and don´t need more
    https://github.com/SimFeedback/SimFeedback-AC-Servo/wiki/Actuator

    Flying is another one, but to have this "perfect" you need something which is rotating mainly, not actuators ... ;)

    Don´t know what you mean exactly , but check if there is some overlapping going more diameter ..
     
    Last edited: Sep 29, 2018
  18. Moxley6969

    Moxley6969

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    the size of the "cap head pocket" in the main printed parts is 17.5mm wide.
    A M12 Cap head is 18mm wide, So all the parts need having done is the Cap head Pocket hole opened up just a tick ...Imo there's room to play with

    Yes M12 are more expensive, but removing the inserts from the equation should offset it within reason.

    upload_2018-9-28_15-43-29.png
     
  19. HoiHman

    HoiHman
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    First actuator assemble, printer issues are causing some delay. But i will get there in time :)

    [​IMG]
     
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  20. sjb266

    sjb266

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    Looks magnificent! Can you foresee any issues tapping the 10.2 and just using M12 bolts? I can just drill the 3D parts out rather than modify the files..
    maybe have to drill out the servo mounting holes too?
     
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