Coaxial Cinestar...

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

  1. Brad McGiveron

    Brad McGiveron Active Member

    Joined:
    Jul 7, 2012
    Messages:
    396
    Likes Received:
    65
    Ya if anybody is planning their own DJI CS X8 use the MK style mixer and not the stock DJI one.
    It wasn't mine but it works nicely.
    [​IMG]
     
  2. Alex Smart

    Alex Smart Member

    Joined:
    Dec 5, 2012
    Messages:
    100
    Likes Received:
    10
    Hi guys,
    I have a gig on thursday , as I don t have the cash to buy some xoar props at the moment I decided to rebuild the original flat MK okto XL and use the APC I have,just went fo a test outside,its blowing about 10-15mph and the choper seams an epileptic gremlin jerking up there:(
    COAX WHAS LIKE A FLOATING ROCK IN THE SAME SCENARIO!
    Im scared shitless now and trying to get this one somewhere near!!
    Its spasmic in the wind, ANY TIPS ARE VERY WELCOME!!
    Thanks in advance!
     
  3. Dejan Mugosa

    Dejan Mugosa Member

    Joined:
    Aug 21, 2012
    Messages:
    80
    Likes Received:
    26
    :) maybe rebuild back to coax hahahahahaha but i had to write this. SORRY
     
  4. Alex Smart

    Alex Smart Member

    Joined:
    Dec 5, 2012
    Messages:
    100
    Likes Received:
    10
    HAhahah!!Yeah Dejan!Thats the plan,
    But as you were saying,everything needs to be really alined, and the coax I build was only a test, I made it with a hacksaw and a dremel and altough it was much more stable in general it had some twiching I couldnt pull out...As soon that I have some funds Ill be building a nice coax!had to go back but it wont be for long;)
     
  5. Howard Dapp

    Howard Dapp Active Member

    Joined:
    Aug 18, 2012
    Messages:
    977
    Likes Received:
    111
    How much does a Xoar 15x5 prop weigh? One online retailer has it listed as weighing 45g, can anyone using 15x5 confirm this? I Just received a set of APC 15x4 props just for testing purposes with a bunch of new motors I purchased and the weight of the APC 15x4 is 48g...I would think Xoar should be a little more lightweight by at least 8-10g.
     
  6. Gary Haynes

    Gary Haynes Administrator
    Staff Member

    Joined:
    Jul 6, 2012
    Messages:
    5,211
    Likes Received:
    460
    Howard that was probably for a pair. Just weighed one of mine 23.54g
     
  7. Howard Dapp

    Howard Dapp Active Member

    Joined:
    Aug 18, 2012
    Messages:
    977
    Likes Received:
    111
  8. Gary Haynes

    Gary Haynes Administrator
    Staff Member

    Joined:
    Jul 6, 2012
    Messages:
    5,211
    Likes Received:
    460
    Physics??? Government math, "Like Dude it is really 23 lbs but I'll put down 23g and know one will notice".
     
  9. Howard Dapp

    Howard Dapp Active Member

    Joined:
    Aug 18, 2012
    Messages:
    977
    Likes Received:
    111
    Are you absolutely certain? Are you sure you weren't reading the scale upside down?:):D

    Jeez these APC 15x4s are bricks! It's funny that the APC 13x6.5 weigh 24g and the Xoars 13" are only 4 grams lighter. Certainly not the case with the 15"!
     
  10. Gary Haynes

    Gary Haynes Administrator
    Staff Member

    Joined:
    Jul 6, 2012
    Messages:
    5,211
    Likes Received:
    460
    yep I am absolutely positive. Even checked another blade. Exact match at 23.54g. Using a digital gunpowder scale.

    And I grabbed one of my old APC SF 14x4.7 and it weighs in at 25.22g Strange that the 15's are that much heavier.

    Also looked at the Xoar Intl site and they also showed the weight at 41g/prop. And that's for the precision PJP-N prop. Looking at the standard electirc PJN prop at 15" it says 30g.

    So Howard, seriously, really it IS government math o_O
     
  11. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
    Staff Member

    Joined:
    Jul 31, 2012
    Messages:
    10,351
    Likes Received:
    1,160
  12. Gary Haynes

    Gary Haynes Administrator
    Staff Member

    Joined:
    Jul 6, 2012
    Messages:
    5,211
    Likes Received:
    460
    FINALLY Government accounting explained. I has all become clear to me. OOOOOOOOOMMMMMMMM OOOOOOOOOMMMMMMM.:cool:
     
  13. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
    Staff Member

    Joined:
    Jul 31, 2012
    Messages:
    10,351
    Likes Received:
    1,160
    It was also summed by the late Adam Osborne (of Osborne Computer fame):

    Constants aren't.​
    Variables won't.​

    Andy.
     
    Steve Maller likes this.
  14. Matt Kearney

    Matt Kearney Member

    Joined:
    Oct 6, 2012
    Messages:
    41
    Likes Received:
    9
    Hey Brad,
    Hope your well.
    With your coax setup for the scarlet, which 6s batts are you using and with the 16" props what are your flight times??

    Thanks again for your advice.

    Cheers
     
  15. Brad McGiveron

    Brad McGiveron Active Member

    Joined:
    Jul 7, 2012
    Messages:
    396
    Likes Received:
    65
    Hey Matt

    I use Thunder Power 6600 45c X 2 which gets me around 6-8 minutes depending on what extras I am carrying. ie remote focus, hd downlink etc. I don't run my batteries low so you probably can get more mileage if you are willing to push them harder. Maybe around 10 minutes or more if you are running a flat octo.
     
  16. Guilherme Barbosa

    Guilherme Barbosa Distributor

    Joined:
    Jul 26, 2012
    Messages:
    140
    Likes Received:
    11
    What boom lenght are you using for x8 , Also Brad if you don't mind , my understanding is the you are using 16x5 Xoar is that correct? How do you compare with the 15x5? Thanks
     
  17. Brad McGiveron

    Brad McGiveron Active Member

    Joined:
    Jul 7, 2012
    Messages:
    396
    Likes Received:
    65
    I am using the stock length, 450mm or whatever it is.

    The 16x5's have a way better hover point for me and 10-12 kg AUW. Less strain and smoother because of it.
    There were no bad characteristics even with a lighter camera like the 5D3, it flew real nice with the 16's.
    !5's worked fine with a little less weight but I was in the 65% hover point on my max weights and I like it to be closer to 50%:)
     
    Guilherme Barbosa likes this.
  18. Josh Allen

    Josh Allen New Member

    Joined:
    Mar 1, 2013
    Messages:
    9
    Likes Received:
    0
    Can you give me advice how to mount WKM on my coax CS8. My ESC's are mounted on top like this. And I don't know where is the best position to mount WKM, since there is no space on top plate?

    http://imageshack.us/f/341/imagemir.jpg/

    I was thinking to put IMU under the "rear" esc between the plates. Or move that one esc between the plates and put IMU on the top. RX and other WKM components should fit between the plates.

    Could esc's on the top make any disturbance to the WKM underneath?
     
  19. Brad McGiveron

    Brad McGiveron Active Member

    Joined:
    Jul 7, 2012
    Messages:
    396
    Likes Received:
    65
    I built a simple top plate made out of foam board that sits on the upper center frame. Fastened it down with Velcro and I fastened the ESC's and WKM to it with either double sided tape or Velcro. The WKM IMU goes right in the center.
     
  20. Guilherme Barbosa

    Guilherme Barbosa Distributor

    Joined:
    Jul 26, 2012
    Messages:
    140
    Likes Received:
    11
    does anyone knows where to find Xoar 16x5 pjp-n paired? looks like no one has in stock....
     

Share This Page