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Showroom 6DOF Build (Bodine Motors, Sabertooth, FlyPT Mover)

Discussion in 'DIY Motion Simulator Projects' started by BondeX, Mar 10, 2016.

Page 2 of 10
  1. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    I use the 360degree pots with reduction 2.24:1. Others with 1:1 ratio (attached directly without gears) seem to prefer 180 degree pots. so you may want to give thought to how you will be mounting these to the motors. @SilentChill is correct order a few extra monsters. At 7.50 each it will be worth it rather than waiting for more. Trust me when I say it sucks waiting for china post when all you need is a few components.
    • Agree Agree x 1
    bruce stephen, Mar 11, 2016
    #21
  2. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    Also I notice the threaded rod, I started with it and bent it. ended up going with small square tubing with proper sized bolts welded to the ends. less expensive, stronger and lighter as the tubing is hollow. Although the weight difference is so small it really doesnt matter.
    20160311_080726.jpg
    • Agree Agree x 3
    Last edited: Mar 11, 2016
    bruce stephen, Mar 11, 2016
    #22
  3. BondeX

    BondeX Active Member

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    Guys, thanks for the help, I will get the 180 pots.

    OK will order MMs, Ards and ball joints today.

    @bruce stephen, what size threaded rods were you using that got bent?
    BondeX, Mar 11, 2016
    #23
  4. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    m12, but now i have hardened bolts as ends not soft steel.
    bruce stephen, Mar 11, 2016
    #24
  5. Historiker

    Historiker Dramamine Adict Gold Contributor

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    • Informative Informative x 1
    Historiker, Mar 11, 2016
    #25
  6. BondeX

    BondeX Active Member

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    @bruce stephen , @Historiker , thanks for the advice bUT I need to switch gears towards motors as I am able to get 6 bodine motors for 250$ less than pgsaw.

    I think I am gonna order them, please stop me if you guys feel I will get better performance out of pgsaw.
    BondeX, Mar 11, 2016
    #26
  7. BondeX

    BondeX Active Member

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    Hey @bruce stephen, you mentioned in one of the posts that your bodine motors did trip your 50A power supply? Is that right? Are you using two full bridge MMs per motor than for 30A continuous and 60A peak?
    Last edited: Mar 12, 2016
    BondeX, Mar 12, 2016
    #27
  8. BondeX

    BondeX Active Member

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    SIX BODINE MOTORS ORDERED YAAAAAAAAAAAAYYYYYYYYYYYYY :p This motor picking/ordering is freaking stressful :mad:
    • Like Like x 1
    • Funny Funny x 1
    BondeX, Mar 12, 2016
    #28
  9. Nick Moxley

    Nick Moxley Well-Known Member

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    Now lets hope they deal with the weight of the rig + yourself. Your Still in Untested waters fyi.
    • Agree Agree x 1
    Nick Moxley, Mar 12, 2016
    #29
  10. BondeX

    BondeX Active Member

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    BondeX, Mar 12, 2016
    #30
  11. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    For my 2 dof I run 2 50 amp psu's wired parallel. I have one full bridge per motor. But This is a well balanced 2 dof so it does not draw as much power while operating IMO. I would recommend following @SilentChill and go with 2motos per motor. Wait, What are the specs for the motors you acquired are they the same as the ones I linked to above?
    bruce stephen, Mar 12, 2016
    #31
  12. BondeX

    BondeX Active Member

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    @bruce stephen they are the same motors as you. 23A max they say but we know better that stall current can be a lot higher. Did you have two motors on one 50A PS at first?
    BondeX, Mar 12, 2016
    #32
  13. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    bruce stephen, Mar 12, 2016
    #33
  14. BondeX

    BondeX Active Member

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    Where do I get those black terminals that @SilentChill is using on those MMs, the ones that the wire goes into?

    @bruce stephen those heatsinks are more expensive. Cant I just put any heat on and then blow a separate fan them heatsinks?
    BondeX, Mar 12, 2016
    #34
  15. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    I was going to do as @SilentChill did. Two motos per motor.
    bruce stephen, Mar 12, 2016
    #35
  16. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    bruce stephen, Mar 12, 2016
    #36
  17. BondeX

    BondeX Active Member

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    BondeX, Mar 12, 2016
    #37
  18. bruce stephen

    bruce stephen Hammer doesnt fix it, must be electrical

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    8amps@250volts....
    They will be ok on 12 volt.
    These are what I used and haven't had any problems.
    • Agree Agree x 1
    bruce stephen, Mar 12, 2016
    #38
  19. pipis2015

    pipis2015 over-boost

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    Be careful when using terminals.

    If you can't find the proper specs then solder the wires directly on the board.

    8 amps at 250 volts may be 2000 Watts but this doesn't mean that they can handle more amps at lower volts.

    That's why they are rated with Amps and not with Watts. All wires are amp rated.

    An easy way to understand it is this:
    Volts=the speed that electrons traveling in a wire.
    Amps is the density of electrons traveling in a wire.

    Density(amps) heats up more than speed(volts).

    That's why when electric power is to travel over long distances it is converted to high voltage rather than high amperage.
    • Informative Informative x 2
    • Agree Agree x 1
    pipis2015, Mar 12, 2016
    #39
  20. SilentChill

    SilentChill Problem Maker

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    I used the cheapest ones I could find, remember you are spreading the load through 8 x connections per motor so there will be no issues with over current in the terminals I never had any, its the brushes that get hot.
    • Like Like x 1
    SilentChill, Mar 12, 2016
    #40
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