Coaxial Cinestar...

Discussion in 'Cinestar Misc' started by Benjamin Rowland, Jan 26, 2013.

  1. Benjamin Rowland

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    I've seen a Hoverfly do coaxial with no issues. But you can go ahead and go first. ;)
     
  2. Brad McGiveron

    Brad McGiveron Active Member

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    Common Pavlos... go for it !!!:p
     
  3. Thijm

    Thijm Member

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    Nice Work Howard, Can you share an image?

    Thijm
     
  4. Thijm

    Thijm Member

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    Kopterworx uses a custom firmware or settings file for DJI, so there are more options.
     
  5. Howard Dapp

    Howard Dapp Active Member

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    here is the tester
     
  6. Pavlos Antoniou

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    As you have seen one you can do it first..>!

    :) :)
     
  7. Howard Dapp

    Howard Dapp Active Member

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    Do you feel a difference in yaw control? It seems yaw control is much stronger with coax.
     
  8. Brad McGiveron

    Brad McGiveron Active Member

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    Yes very true Howard... the multi seems so much more locked in than the flat. As well way more control and less floaty which the yaw is most noticeable.
    I was surprised how well the MK X config flew. I was expecting it to be nowhere near as good as DJI X, but I am very impressed. Now I just wonder how well the I2C converter would work with it... :D
     
  9. Benjamin Rowland

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    So I tried to mount two motors on one boom and my motors were too wide. Bummer.

    Working on a solution...
     
  10. Howard Dapp

    Howard Dapp Active Member

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    I think they should! I don't know why anyone is flying flat 8 :)

    Flat 8 heavy Lift:
    -Large in size when mounting 15" or 16" props - (cumbersome to transport between shoot locations)
    -A pain to dismantle
    -hard to figure out orientation at times
    -Not as stable in wind compared to coax
    -Not as stable overall compared to coax

    Coax (X8) Heavy Lift
    -Relatively same lift capability as flat 8
    -More compact than flat 8
    -Only 4 arms to pull - Easy to dismantle & transport
    -Orientation blindness not as bad (for me at least)
    -More stable in wind than flat layout
    -More stable overall compared to flat layout

    You do lose some vertical fov because of the down facing motors but it's not as bad as one would think because the motors are further apart. The benefits far outweigh a slight loss of vertical view IMO. Once you've ascended beyond 30 feet and looking down 10-15° there is no issue.
     
  11. Sean McDonald

    Sean McDonald New Member

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    Hi Brad. Looks fantastic. I saw your nice video from Scarlet at the same location on vimeo.
    Where is this location?
    I'm in North Vancouver and have Octo and 3 axis gimbal and busy with tuning MK and Radians. PM me some time.
    Thanks.
    Sean
     
  12. Brad McGiveron

    Brad McGiveron Active Member

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    Hey Sean

    That is a spot up Howe sound that I go to often for testing.
     
  13. Pavlos Antoniou

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    you mount the 2 motors with 2 clamps right?? i dont think that they can o something for this..!!
     
  14. Pavlos Antoniou

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    Guys your coaxial cinestars the booms are 90degrees like quad?? or not?

    Also you say that its better for the cam because it can go more UP... as i see here this is not true...!


     
  15. Shaun Stanton

    Shaun Stanton Active Member

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    This was shot on a very wide angle aspherical lens like on a gopro. I think if this were on a non aspherical lens the motors would not have been in the shot. I have a small nose camera gimbal on my regular cs8, about the height of another motor an it does not be in the shot unless I push the pitch beyond 10 degrees or so
     
  16. Howard Dapp

    Howard Dapp Active Member

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    That video was shot on a GoPro as per the vimeo page. As we know with GoPro nothing is out of view;)

    Here is my previous comment regarding FOV.

    "You do lose some vertical fov because of the down facing motors but it's not as bad as one would think because the motors are further apart. The benefits far outweigh a slight loss of vertical view IMO. Once you've ascended beyond 30 feet and looking down 10-15° there is no issue."
     
  17. Howard Dapp

    Howard Dapp Active Member

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    swapped out APC 13x6.5" for Xoars and the coax seems a little more nimble in flight. 3X Radians working flawless as well.
     
    TFCM likes this.
  18. Howard Dapp

    Howard Dapp Active Member

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    On my setup using a 5D & 24-105mm lens fixed at 24mm with the camera angled upward approx 12 degrees in between the two front arms, I cannot see boom or down facing motors and props.
     
  19. Alex Smart

    Alex Smart Member

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    SOOoo, I ve been reading marvels about coax!!Im shooting with CX730 or canon 600..
    I have aMK Okto XL, All together 12 ESC and 10 motors, what would you go for? 12 hexa coax or octo X ?
    Regards
    Alex
     
  20. Howard Dapp

    Howard Dapp Active Member

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    All
    If you're only lifting a CX730 and Canon DSLR you could simply convert your octo to an X8. An X8 fitted with motors able to push 15x5" props is a beast of a machine and will be able to lift any camera you throw on there. A hexa 12 will have power for days, maybe you could also gain some efficiency as well.
     

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