Converting To Heavy Lift CS8 - BUILD THREAD

Discussion in 'Cinestar 8' started by Josh Lambeth, Nov 4, 2012.

  1. Howard Dapp

    Howard Dapp Active Member

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    Sure you can run MK flt ctr on 6s just as long as you replace the switching regulator for one that handles 25v also swap the capacitor for a 25v cap and you're good. I was also curious as to why you didn't go with 6s.

    6.5v-32v input to 5v output Switching reg:
    http://www.tracopower.com/products/tsr1.pdf You would want the TSR1-2450 Traco reg. Use a low ESR 25v cap.

    MK board running 6s and Herk III ESCs
     
  2. Josh Lambeth

    Josh Lambeth Well-Known Member

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    Well dang... didn't know that... I'll look into it. What flight time difference will there be between the 5s and 6s?
     
  3. Howard Dapp

    Howard Dapp Active Member

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    I have no idea, maybe the others who are flying 6s can chime in. I'd like to know myself! My next big lifter will have to be 6s capable...Tabb are you there:)

    Josh, maybe you could run some test for all of us who are following along?
     
  4. William Johnston

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    The Recom R-78C5.0-1.0 has an input range of 8V-42V.
    http://www.recom-power.com/pdf/Innoline/R-78Cxx-1.0.pdf
    You could use a 10S, if your not using Mikrokopters ESCs. :)
     
  5. Alex Gower

    Alex Gower New Member

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    josh you have the link where to buy the I2C converter?
     
  6. Thijm

    Thijm Member

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    It's very easy to convert your FC to 6 or even 8s. See Pic
    Remove green caps
    Ad 2x 35v

    pink = connected ground cap
    Replace recom with tsr 1-2450

    Edit; will get a better pic tomorrow
     

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  7. Howard Dapp

    Howard Dapp Active Member

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    Hi TFCM, our question was relating to real world gains going the 6s route over 5s. Some say motors run hotter on 6s and others say they haven't seen any real flight time gains going 6s but then others say just the opposite. I guess it all really depends on an individual's setup. I do want to go 6s on my next build but I also think about traveling by air with 10-12 6s 5000mAh lipos, that's a 'bleep' load of heavy and hazardous looking equipment to some silly under-trained tsa agent.
     
  8. Thijm

    Thijm Member

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  9. Thijm

    Thijm Member

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    Just finished my rebuild.

    14x5, Kw10, Herkules 3, 2x6s 5800mAh
     

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  10. Howard Dapp

    Howard Dapp Active Member

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  11. Thijm

    Thijm Member

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    No intention to do so!
     
  12. Josh Lambeth

    Josh Lambeth Well-Known Member

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    Ok guys,
    Started the build yesterday. Got the power distro block built (what a pain!) and all the deans soldered on the ESCs. I also have them all updated and program. Next step today is to start taking my current copter apart and mounting everything to it.

    A few pictures are attached for you.
    20121110_123031.jpg 20121110_152959.jpg 20121110_153005.jpg 20121110_153010.jpg
    Josh
     
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  13. Howard Dapp

    Howard Dapp Active Member

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    Nice Josh! very clean. I feel your pain, soldering is my least favorite task. I also followed Tabb's distro idea, I love it..best solution I've seen in a long time. What will your approximate AUW be? I'm very curious about those motors on 5s and 15" props.
     
  14. Ryan McCrae

    Ryan McCrae Member

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    Where can I find more out about Tabbs power distro idea?
     
  15. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    Three rotors, TFCM? A Tricopter? :)

    Andy.
     
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  16. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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  17. Thijm

    Thijm Member

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    Hmm. there was a image below. Link is just the staring point <3
     
  18. Sandor Kruise

    Sandor Kruise New Member

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    use 35V caps

    the traco,s can take 30Volts not 25 so your fine to run on 6S
     
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  19. Josh Lambeth

    Josh Lambeth Well-Known Member

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    Well guys I got more finished up.

    All the bullet connectors connected to the ESCs, the new RECOMs on the FC and the FC re-programmed (used my old FC From the gimbal), and got the I2C-->PWM converter connected to the FC.

    I also removed the old BLs from the frame, and removed all the motors. I am going to be re-drilling my CS motor mounts to fit the new motors. 2 of the 4 mounting holes line up with the new motors. Im hoping to have that done today along with mounting the new booms.

    My apartment looks like a bomb went off... or that I am building one...

    Josh 20121111_213822.JPG 20121111_172937.JPG 20121111_160903.JPG 20121111_145749.JPG 20121111_145713.JPG 20121111_145706.JPG 20121111_141920.JPG
     
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  20. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    Don't forget to cover the pressure sensor on the FC board with some Velcro or foam to reduce gust sensitivity!
    (The correct response to this is: Yes dear.....):)

    Homeland Security is probably monitoring your activities....

    Andy.
     

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