My Brushless Gimbal Conversion + Flying Footage!

Discussion in 'Camera Mount Misc' started by Josh Lambeth, Jun 17, 2013.

  1. Mario de Roos

    Mario de Roos Member

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    Mirror test 2, now with the 14x140 zoom lens on the GH2, OIS on.

     
  2. Steve Maller

    Steve Maller UAV Grief Counselor

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    That's eerily smooth.
     
  3. Bill Collydas

    Bill Collydas Active Member

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    That's better Mario. You need the weight on the gimbal. The GH-2 is a light camera. Try something heavier.
     
  4. Mario de Roos

    Mario de Roos Member

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    Bill have looked at post 80?

    Mario
     
  5. Keith Colodny

    Keith Colodny Member

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  6. Jason Herring

    Jason Herring Member

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    What does the heat sink do to the Alexmos board?
     
  7. Matt Sharp

    Matt Sharp Member

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    Heat sinks on the board help to dissipate heat better from the chips, so the board runs cooler.
     
  8. kjetil tønnesen

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    hello
    how do you power the reciver from the alexmos
    is there a output ??

    i use 4s batt on my setup,can i use one motoroutput the get power to my graupner r 16 reciver??
    do it take 14,8 volt or is it a 5 volt output from it

    i thougth the reciver got power from the tilt out put or the yaw output but no?
     
  9. Matt Sharp

    Matt Sharp Member

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    On the Alexmos board there are 2 small pads labelled JP1. If you solder the pads it will pass 5 volts from the board through the rc inputs that you connect your receiver to.

    I personally use a bec to give 5 volts to my receiver and to have 5 volts for video converters. I was using the power from soldering JP1 but didn't want to run converters from it.
     
  10. kjetil tønnesen

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    thanks for the tips matt:)
     
  11. Rick Welin

    Rick Welin New Member

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    Hi Guys, Sorry to dredge up an old thread, but I am very curious as to how the brushless belt-drive setups have worked out for you? Did you manage to get around the amplified cogging issue?

    Or perhaps all this has become moot with release of much bigger motors?

    I have an old servo gimbal I'm thinking of converting

    Oh and hello to all the regulars this is my first post. :)
     
  12. Matt Sharp

    Matt Sharp Member

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    Mine worked well, but now I'm running direct drive GB85 motors.

    I only ran into issues with cogging on the pan with a 5208 motor, but I swapped it with a higher pole count and it smoothed it out.

    The large motor direct drive gimbals are heavier than a belt setup, but they react faster and are easier/faster to tune.
    (In my Opinion)

    I think it mainly comes down to budget/weight
     
  13. Rick Welin

    Rick Welin New Member

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    Thanks for the update Matt, most appreciated!

    Ya, I've got an old Tarot 5D servo gimbal and I thought I might try running brushless motors on the belts to save weight. I've got it mounted on a Hexa and the copter is at the max comfortable weight. So going with one of the new large-motor gimbals will put me over the 50% hover margin. I'd need to dump the Canon 5D and get a lighter camera, or build an Octo... both options get a bit pricey lol.

    Thanks again. I may just give this a go :)
     
  14. hakashi

    hakashi New Member

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    Thank Josh! The information is very interesting. I like your post.
     

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