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Thread: TBS DISCOVERY - New quadrocopter frame

  1. #841
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    Quote Originally Posted by Trappy View Post
    draw an X right where the openpilot or microcopter mounting holes are. in that center, that's where I'd like you to put the FC
    now that's clear!
    but why did you put a C.G marking on the bottom plate?

  2. #842
    Navigator G-unit's Avatar
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    Quote Originally Posted by Trappy View Post
    draw an X right where the openpilot or microcopter mounting holes are. in that center, that's where I'd like you to put the FC
    OK, Thanks

  3. #843
    Navigator G-unit's Avatar
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    Quote Originally Posted by mandis View Post
    now that's clear!
    but why did you put a C.G marking on the bottom plate?
    I think it was to mess with r Head.

  4. #844
    Quote Originally Posted by mandis View Post
    now that's clear!
    but why did you put a C.G marking on the bottom plate?
    that's for weight balancing.

  5. #845
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    Quote Originally Posted by G-unit View Post
    I think it was to mess with r Head.
    you think so? why would they do that?
    good thing i asked before i maiden mine.
    now i have to move everything to it's place.
    it should came with a manual. on the build threads i read, they didn't mention anything about the CG.
    but atleast now i understand better. because i'm really not familiar on how to measure the correct CG of a asymmetrical quad.
    btw on rcg dialfonzo had shared on how to measure the CG by illustrations. alot easier to undestand.
    thanks anyway for the help.

  6. #846
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    Quote Originally Posted by Trappy View Post
    that's for weight balancing.
    a ok. so you want to make it a little nose heavy? ok now i understand clearly what the CG marking is for..
    but where should i place my NAZA GPS? because on the NAZA GPS it is recommended that it should be placed as close as possible to the CG. so what is my reference point for the CG when installing the GPS?
    thank you for your patiences in explaining trappy.
    more power to you!
    btw most of my friends likes your frame. i think one have ordered already..

  7. #847
    for GPS use the CG reference marked by the TBS. you can place the GPS sensor anywhere, but you must enter the compensation coordinates in the software.

  8. #848
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    Quote Originally Posted by Trappy View Post
    for GPS use the CG reference marked by the TBS. you can place the GPS sensor anywhere, but you must enter the compensation coordinates in the software.
    thank you very much!
    really great product support!
    thumbs up for TBS! clap clap clap

  9. #849
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    Quote Originally Posted by chrisbrit81 View Post
    CG is for balance, as has been said before. draw an imaginary line between the 4 motors and that's where you should have the centre of mass. It needs to be balanced well so that all the motors work the same amount to keep the board level. otherwise if you had the weight to far to one side (or front or back) then the two motors for that half of the quad would be working harder than the other two. helps efficiency.

    the location of the FC doesn't really matter that much, as long as it's on the correct plane in the correct orientation all the gyros and accelerometers will react the same way. the guy from Experimentalairlines on youtube did a video about gyro placement and proved that they can be placed anywhere on the desired plane (not airplane lol) and still achieve the desired effect identical to placing them right on the CG
    thank you sir for your inputs.
    but my real concern was the point of reference in installing the NAZA GPS. because i need to take measurements.

  10. #850
    Here's a comparison of the TBS Discovery beta model and the actual v1.1. As Trappy has said, the arms have been moved back a bit to get the props out of the GoPro view, move center of gravity further back and reroute the top traces to the side.

    Top: v1.1 (current)
    Bottom: beta

    Click image for larger version. 

Name:	tbs_discovery_beta_v11_comp.jpg 
Views:	574 
Size:	77.0 KB 
ID:	12761

    Photos by juz and isotop

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