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building 2dof seat mover for my rig

Discussion in 'DIY Motion Simulator Projects' started by jimmytm3, Apr 4, 2015.

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  1. jimmytm3

    jimmytm3 Member

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    Hello going to start building a 2 dof wiper seat mover for sim only race iracing purchased Arduino + Motomonster, 12v 47A 575Watt server Psu, 2x single turn Cermet 10k linear pots not sure what wiper motors i need want to make compact under the seat style mover. Looking around people use 2x power supply's 2x motormonsters I think i will need to use those 60:1
    High torque motors so if some one could confirm if i have got the right electrical equipment to run suggested motors that would be great !!!






    2014-12-22 09.07.16.jpg 2014-07-31 12.56.02.jpg 2014-11-22 12.42.48.jpg

    Attached Files:

    • Like Like x 1
    jimmytm3, Apr 4, 2015
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Nice job on the static rig you have already build @jimmytm3!

    You will have some choices depending on design and your weight plus the seat. If it is a compact design like @bsft's Desk Racer and you are under 100kg with a light race seat then you could use these motors and 25:1 boxes: https://www.motiondynamics.com.au/worm-drive-motor-12v-24v-200w-180-rpm-20nm-torque.html

    If you are 'big guy' then consider the 60:1. number 15 in the chart further down the page: https://www.motiondynamics.com.au/1...ve-geared-motor-200w-21-256-rpm-7.5-45nm.html

    You have the basis of what you need for the build and there is plenty of arduino info and code in the FAQ section: http://www.xsimulator.net/community/faq/arduino.6/category

    I suspect that if you have specific arduino related questions then gurus like @Pit, @RacingMat, @eaorobbie and others can help out.
    noorbeast, Apr 4, 2015
    #2
  3. jimmytm3

    jimmytm3 Member

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    thanks for your time mate appreciate it
    jimmytm3, Apr 4, 2015
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  4. jimmytm3

    jimmytm3 Member

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    So the power supply i have purchased would be enough for those motors? the desk racer has 2 power supply's but in wiring diagrams i have seen people only use one power supply and one motomonster so many different scenarios hope what i have purchase is enough is the jrk better or much the same
    jimmytm3, Apr 4, 2015
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  5. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    The JRK is simple to set up via its own graphical interface and provides good performance, but is more expensive. The Arduino is more flexible, takes a bit more effort and is pretty cheap. Horses for courses and both are widely used by members here.

    The PSU(s) need to be able to supply enough power for peak spike loads and the bigger DC motors do draw a bit. The advantage of the modified server PSUs is that they have good output at a very cheap cost, so adding another costs very little to guarantee a good supply. What is needed power wise really depends on the motors you plan to use and what they need power wise.
    noorbeast, Apr 4, 2015
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  6. jimmytm3

    jimmytm3 Member

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    jimmytm3, Apr 4, 2015
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  7. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Before finalising what motors and PSU power is needed can you supply a rough design. It can be as simple as a photo of drawings on paper but would give members an idea of what you plan so we can advise more specifically.
    • Agree Agree x 1
    noorbeast, Apr 4, 2015
    #7
  8. jimmytm3

    jimmytm3 Member

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    2015-04-04 13.54.56.jpg
    jimmytm3, Apr 4, 2015
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  9. jimmytm3

    jimmytm3 Member

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    crap drawing but you should get the idea going to cut off whats holding my seat and make something like that
    jimmytm3, Apr 4, 2015
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  10. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    Some initial suggestions below.

    You can connect under a seat but over the CG is less strain. If you go under the seat CTC should be less, about 25mm is the practical minimum as it really starts to limit the possible motion volume.

    suggestions.jpg
    • Like Like x 1
    • Agree Agree x 1
    noorbeast, Apr 4, 2015
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  11. jimmytm3

    jimmytm3 Member

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    jimmytm3, Apr 4, 2015
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  12. bsft

    bsft

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    Yes those motors will do just fine, thats what I use on desk racer. And I found out 25:1 boxes will move 110kg person no problem.
    For power supplies, get 2 and make sure they are rated at 40 amps each. One for each motor.
    For control boards, suggested is JRKS as they hook up easy, require no coding and perform very well.
    And follow noorbeasts suggestion of the design, it will work a LOT better than motors underneath.
    See how I made extra steel mounts up the side
    2014-03-21 14.27.48.jpg
    I can tell you this from experience what will work better.
    bsft, Apr 4, 2015
    #12
  13. jimmytm3

    jimmytm3 Member

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    Is it to much to ask what exactly i need to buy electronic wise for that design i know i said i bought Arduino but there cheap enough to change my mind
    jimmytm3, Apr 4, 2015
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  14. Pit

    Pit - - - - - - - - - - - - - - - - Gold Contributor

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    Ard/MotoMonster or jrk - it is your choice but both systems are fine. ARD/MM can be expanded to get more power if needed. Dunno but I have seen 400w motors working driven by the jrks so that you need two MMs.
    Pit, Apr 4, 2015
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  15. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    noorbeast, Apr 4, 2015
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  16. jimmytm3

    jimmytm3 Member

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    Another question is it possible too run simtools on a fourth monitor wile in iracing on a three monitor display
    jimmytm3, Apr 4, 2015
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  17. bsft

    bsft

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    Should be, if the card either handles 4 screens or you run 3 off one VGA card and the 4th off another card
    bsft, Apr 4, 2015
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  18. jimmytm3

    jimmytm3 Member

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    motion assembly.JPG Have drawn this based on BSFT desk racer i think uni is a bit far back and ill move motors a bit foward any suggestions? the rhs at the bottom is the seat sliders as i think they will be handy to get in and out of my rig
    • Like Like x 1
    jimmytm3, Apr 19, 2015
    #18
  19. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    I would suggest making the base board longer for stability. It is easy to under estimate the power of the motors we use. If you turned the sim on as depicted and the motors snapped from an unloaded to center position it would lift the back of the base off the ground. Mine is 500mm, which I would consider minimum, longer would be better.
    • Agree Agree x 1
    noorbeast, Apr 19, 2015
    #19
  20. jimmytm3

    jimmytm3 Member

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    The plan is to weld the base to my static rig that should be o.k ? the whole thing will be fabricated out of 6mm pl
    Last edited: Apr 19, 2015
    jimmytm3, Apr 19, 2015
    #20
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