My Brushless Gimbal Conversion + Flying Footage!

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

  1. Bill Collydas

    Bill Collydas Active Member

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    I had some shafts made of aluminum. They .025" and the holes are 12mm center. I made the shafts long so I can cut them to whatever length I want.
     

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  2. Scott Stemm

    Scott Stemm Member

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    Josh
    Any update on a conversion kit?
     
  3. Janne Hoglund

    Janne Hoglund Member

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    Hi Bill, will you not lose much of the speed when using the reduction?

    Regards.

    /Janne
     
  4. Mario de Roos

    Mario de Roos Member

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    Thanks for the info Bill.

    Mario

     
  5. mradeck

    mradeck New Member

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    would you share the details about the timing trick?
     
  6. Jason Toth

    Jason Toth Active Member

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    Also how did you combine the two, is it one shaft going thru the two motors?
     
  7. Steve Maller

    Steve Maller UAV Grief Counselor

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    These are cool. Great idea. :)
     
  8. Sean Haverstock

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    Howard are you, or is anyone, using just the 5208 on pan? Grayson's kit come with the pan motor in the motor cage (photo above). But based on my experience with my handheld there is no way the 5208 will get the job done in the air. Is it possible to pull the motor out of there and swap it with a cinestar pan pulley like Bill has done? Or do we need a whole new pan setup?
     
  9. Bill Collydas

    Bill Collydas Active Member

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    The 5208 is not strong enough on the pan, and if your balance is of forget it.
    I use the belt system with the 5010-150 and it works.
    Still have to test it in the air but on the bench I like the results.
     

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  10. Bill Collydas

    Bill Collydas Active Member

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    I did some torque test on the gimbal.
    On the roll and tilt I get 31rg. pull on the yaw I get 19gr. either direction
    Now I am using the RCTimer 5010-150 but If I change it to 5208 I will get the same torque as the other two.
    Bill
     
  11. Sean Haverstock

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    Hey Bill,

    I figured that much. The 5208 is just barely enough on my handheld. Thanks for the pics. That pan axis is different than your one up thread. Was there an issue with the other one? What is your landing gear option for that latest setup?
     
  12. Bill Collydas

    Bill Collydas Active Member

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    No issues with the first setup. The first one I was using the CS landing gear, on this one I'll be using a retractable landing skids. Just a different mounting setup. They both work with the same results. Also on this one I am using the 150t belt.


    Bill
     
  13. Mario de Roos

    Mario de Roos Member

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    Conversion of the pan to brushless,

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    Short mirror test,

     
  14. Brad McGiveron

    Brad McGiveron Active Member

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    Mario, it looks nice... although I can see some coging or notching on the yaw compared to the roll and tilt. This is going to happen with a motor with less poles like the 5208 etc and belts. The belts seem to exaggerate the effect in tests I did a few months ago.

    Was this with IS on or off?
     
  15. Mario de Roos

    Mario de Roos Member

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    Brad, I need some more time with the pan settings it's a new playground for me ;) bud IMO it's already better than the Radian :)

    The mirror shoot was with a Olympus 9-18 zoom lens on 9mm, so no stabilisation.

    Mario
     
  16. Jose Luis Ocejo

    Jose Luis Ocejo Active Member

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    Hi Bill do you have more of the flange shafts do you want to sell 2 or 1
    thanks
     
  17. Brad McGiveron

    Brad McGiveron Active Member

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    Oh absolutely its much better already! Looking forward to seeing the finished setup :)
     
  18. Bill Collydas

    Bill Collydas Active Member

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    Mario it looks good. Suggestion for you though. Replace the motor plate with a thicker one and remove those links. Otherwise nice job.
     
  19. Mario de Roos

    Mario de Roos Member

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    Thanks Bill :)

    Yes I know I only had some thin piece of carbon laying around, bud on the other hand the links are great to tune the angle of the motor so that the belt is running exactly in the middle of the gears without loosing tension.
    And this is my test rig so looks isn't important , when all is clear to us which route to take we will design a complete new production mount ;)

    Mario
     
  20. Mario de Roos

    Mario de Roos Member

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    Brad, after some more time playing with the pan setting I see what you meant but its not clear to me why? in my understanding if you reduce your drive train cogging should normally also reduce, looks to me there is a Alexmos software upgrade needed for gear drive's.

    Bill how is your opinion about this, do you have also encounter cogging on you mounts? hmmm maybe its just the 5208.

    Mario

     

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