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Showroom DX - Compact Simulator

Discussion in 'DIY Motion Simulator Projects' started by noorbeast, Sep 29, 2014.

  1. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    I did not bag the product of Motion Dynamic, in fact I regularly recommend them.

    What I reported, in a very respectful manner, was a failure and I have noted my appreciation as to what Shane did to assist with resolving that.

    http://www.xsimulator.net/community/threads/dx-racer-compact-simulator.5866/page-12#post-79220

    http://www.xsimulator.net/community/threads/dx-racer-compact-simulator.5866/page-12#post-80428

    http://www.xsimulator.net/community/threads/dx-racer-compact-simulator.5866/page-12#post-81158

    And let me explain why I do consider this a very clear product failure @bsft, that has nothing to do with design. The gears failed not once but twice. The second time was after the heave assist had been added, which results in very light loads. In fact less than you own Desk Racers design, as the heave spring helps lift the user's weight. You can see in some of the videos I have made just how little the front gearboxes have to work with the heave design. In fact I plan on going down to 50:1s for the front gearboxes at some point in the future, because the gearboxes are so lightly loaded.

    Now there is a very handy control comparison here as both the gears that failed can be compared to the motor on the other side, which has been subject to exactly the same settings and use. In fact the other gearbox is still as good today as when I first installed it. Similarly, the new gearbox I got after the second gear failure shows no problems at all.

    As far as I am concerned there are two things that are common to both sets of the gears that failed. The first is the housing they were in and the second is that the gears had been swapped around, as per the advice Motion Dynamics gives on its website: https://www.motiondynamics.com.au/worm-drive-gearbox-to-suit-industrial-motors.html

    Honestly there is nothing wrong with 60:1s for motion sims. My advice is to buy dedicated left and right hand gearboxes rather than swap the gears around.
    • Informative Informative x 1
    Last edited by a moderator: Dec 9, 2015
  2. ALMO

    ALMO New Member

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    Agreed Archie. This type of rhetoric has no need within this community.

    The DX racer is a good build for people seeking a cost+space effective motion solution.
    • Agree Agree x 1
  3. AceOfSpies

    AceOfSpies Living the Dream!

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    There's enough grief in the world. We don't need it on our, otherwise friendly, forum. Time to take a breath, and evaluate what is being gained by such discourse. Constructive criticism isn't an attack by anybody's standard. Anyone who has a problem with constructive criticism, possibly shouldn't be posting on a public forum.
  4. speedy

    speedy Well-Known Member

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    My Motion Simulator:
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    Awesome Genius Work ...
    LLLLLLLLLLoove it :cheers ...
  5. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    The parts just turned up this morning to build my portable VR computer, but after being up all night with the Rift Pre-order I will leave putting it together until after I have had a good nights sleep.

    I also have other bits that are due any day now so I can build a portable haptic chair. That project will not have motion but the haptic setup may be of interest to others.

    PortableVRcomputer.jpg
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  6. Archie

    Archie Eternal tinkerer

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    My Motion Simulator:
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    System builder porn. Nice!
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  7. 1oldbiker

    1oldbiker Member

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    @Noor Are you going to have shakers mounted at various point on the seat? I think that would be cool. I've driven race cars and race boats and part of the thrill is all the thumps and bangs. Can Simtools strip the vibration data out?
  8. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    I have a a large Buttkicker mounted under the seat of my sim, have played around with creating a haptic harness and have set my rig up to add more transducers in the future.

    I am about to start building a portable 9 transducer haptic chair without motion, to experiment a bit more with haptics.

    At this stage SimTools does not support transducer control but it is a planned addition for the next version.
  9. 1oldbiker

    1oldbiker Member

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    That will be an awesome addition.
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  10. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    That is the sort of question you should ask on your own build thread. you can start one here:
    http://www.xsimulator.net/community/forums/diy-motion-simulator-projects.22/

    I don't know of a Germam supplier.

    Your could import from Motion Dynamics in Australia, but I suspect shipping may be expensive: https://www.motiondynamics.com.au/industrial/

    This Canadian seller has similar motors and ships world wide: http://www.ebay.com/itm/GEAR-MOTOR-...483?pt=LH_DefaultDomain_0&hash=item51bed470a3

    As theses motors are hard to get or expensive in some places a possible alternative is modifying electric jack mototors: http://www.xsimulator.net/community/faq/modify-electric-jack-motors-for-sim-use.212/

    Or common winch motors, though these can be a bit noisy: http://www.xsimulator.net/community/faq/dc-winch-motors-for-motion-simulators.151/
    • Informative Informative x 2
  11. Azeal

    Azeal New Member

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    Woah; Ive finally finished reading this lengthy post. Took almost my entire night shift. Very in depth. I got two question though. Can this build use wiper motors instead? with regards to gear boxes(front two) must i use a left & right or can i get away with using just a left or right gear boxes. I doubt i can find Dc motor /gear boxes easily in my country. Amazing work Noorbeast!! :thumbs
  12. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    Unfortunately not @Azeal, a compact design like mine needs a fair bit of torque to drive it and wiper motors are not really suitable.

    I am changing the heave motor to 50:1 next week and really with the spring assist that would be suitable for all motors. You do need gearboxes that can't be back driven, otherwise the heave assist spring creates problems when nobody is on the sim but there is motion data, as a 25:1 is not strong enough to compensate for a spring that can balance your weight.
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  13. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    This is the new compact VR computer I just put together, interestingly the brilliant Corsair case would neatly fit HP server PSUs if anyone wanted to build a portable PSU, control board and perhaps sound system out of one.

    Corsair Graphite 380T Mini ITX Black Gaming Case

    Gigabyte GA-Z170N-Gaming 5 Motherboard

    Intel Core i5 6600K

    Corsair Vengeance LPX CMK16GX4M2B3200C16 16GB (2x8GB) DDR4 Black

    Samsung 850 EVO Series 250GB 2.5in SSD

    HGST Travelstar 7K1000 1TB

    Corsair Hydro Series H100i GTX 240mm Liquid CPU Cooler

    EVGA GeForce GTX 970 FTW+ ACX 2.0+ 4GB

    Cougar RS 750W PSU (a modular PSU would be better but I already had this lying around)

    I deliberately chose the 2.5in 1gb 7500 rpm HGST drive for storage so I could remove the double bay 3.5 housing to give more room for cable management. If I ever feel the need for more space with cheap drives I can put the 3.5 housing back in, but as this is meant to be a portable VR rig for a 9 transducer chair I plan to build I won't be adding more to it than I actually need.

    20160108_123827.jpg 20160107_161901.jpg 20160107_162147.jpg 20160107_164054.jpg 20160108_131059.jpg 20160114_151953.jpg 20160114_152039.jpg 20160114_152146.jpg 20160114_152210.jpg
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    Last edited: Jan 14, 2016
  14. Azeal

    Azeal New Member

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    @noorbeast Thanks for the reply. Well that means i need to go look around for motors at Sim Lim tower instead of a scrap yard during my off day. Wonderful rig you have there. Was wondering whether the Dell Alienware alpha or Zotac mini PC is powerful enough to run your game, simtools & the OC rift. A compact mini itx PC would look great on your compact sim
  15. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    While a mini PC supporting x86 could run SimTools and games not needing high end graphics, they are not suitable for VR which needs high end specs like the compact PC I just built.
    • Agree Agree x 1
    Last edited: Jan 16, 2016
  16. JlMMY

    JlMMY New Member

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    GJ Noorbeast, You tha KING
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  17. skano ca

    skano ca tH3 bR1igHt3st star 1n the c0nst3llat10n HydRa

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    Nice work. I like your compact sim
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  18. eightbit

    eightbit Active Member Gold Contributor

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    Noorbeast well done mate! Really is a nice bit of compact kit. Looking forward to seeing your future additions. All the best!
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  19. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Much appreciated guys.

    I have since fitted the 50:1 gearbox for heave. While I had it in bits I swapped in the brand new boxed HP server PSUs that I got really cheap some time ago.

    At some stage I will make a new and longer aluminium seat base plate, just so I can squeeze a little more leverage on the heave axis, but it is not urgent just a longer term upgrade. Heave is great with most things but really shines when you have rally style jumps in games like Dirt 3 or tracks like Nordschleife.

    My next project will be messing more with a haptic chair rather than the motion sim.
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  20. Juandi

    Juandi Member

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    Great build!
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