Radio control nuts

Discussion in 'Shiny Things' started by RC Pilot, Apr 15, 2009.

  1. Saget

    Saget Not quite a full house

    Joined:
    Mar 2, 2007
    Oddometer:
    491
    Location:
    Somewhere near Seattle

    Yes, you are correct.
  2. anonny

    anonny What could go wrong?

    Joined:
    Mar 20, 2007
    Oddometer:
    5,775
    Location:
    Beautiful Revelstoke BC
    Good stuff, I absolutely love flying RC gliders... almost as good as the real thing.
  3. Hay Ewe

    Hay Ewe Just a Wannabe

    Joined:
    Jul 17, 2005
    Oddometer:
    3,141
    Location:
    FNQ - AUS
    Wanted one of these for a while but didnt want one that much to go out and find one. Was in the Tamiya store in Singapore on saturday and saw the body shells, they had the kit as well.
    Went back yesterday and brought it!
    The kit comes with a clear body shell but I also brought a pre-painted one as well. It also has the lights installed!

    Body shells are SIN$135

    [​IMG]

    I have a Bigwig that is mostly complete, needs radio kit and motor and I have a Supershot that is also mostly complete.
    This will wait for a while ....

    Hay Ewe
  4. DakarNick

    DakarNick Swabee

    Joined:
    Oct 14, 2005
    Oddometer:
    7,084
    Location:
    Parker, Colorado
    Thanks, Saget. I understand the costs involved. I guess the reason I don't build my own is I don't know what I'm doing, as far as controller, properly sizing the motors, etc.

    I've been checking out the DJI quad.
  5. Saget

    Saget Not quite a full house

    Joined:
    Mar 2, 2007
    Oddometer:
    491
    Location:
    Somewhere near Seattle

    I hear ya, I don't know what I'm doing either!! That's why it took me so long. But hey, I figured it out along the way. I suppose a good way to cut the cost significantly would be to sell them in kit form. There could be an airframe kit for those who want to choose their own electronics. Then an electronics kit with everything I used, along with instructions.

    Something else to think about, I guess.
  6. DakarNick

    DakarNick Swabee

    Joined:
    Oct 14, 2005
    Oddometer:
    7,084
    Location:
    Parker, Colorado
    I hear ya! It takes a lot of trial and error, I'm sure. I still don't even know how some of these controllers work. Which are you using?

    I'm on rcgroups.com right now shopping for a quad for FPV/video :)
  7. Saget

    Saget Not quite a full house

    Joined:
    Mar 2, 2007
    Oddometer:
    491
    Location:
    Somewhere near Seattle
    I'm using the KK2 board from Hobby King.
  8. DakarNick

    DakarNick Swabee

    Joined:
    Oct 14, 2005
    Oddometer:
    7,084
    Location:
    Parker, Colorado
    Sweet. I found this one on RC Groups, an HT-FPV. Needs a flight controller, receiver, and battery. $270 for frame, motors, ESCs, all soldering done.

    [​IMG]
  9. Saget

    Saget Not quite a full house

    Joined:
    Mar 2, 2007
    Oddometer:
    491
    Location:
    Somewhere near Seattle
    That would be a good way to get started without having to spend an excessive amount of time on it. Add another $75 or so for a controller, Rx, and battery and you're in the air.
  10. DakarNick

    DakarNick Swabee

    Joined:
    Oct 14, 2005
    Oddometer:
    7,084
    Location:
    Parker, Colorado
    Eaxactly! I found this http://www.rctimer.com/index.php?gOo=goods_details.dwt&goodsid=765&productname which is what the seller used on it.

    I have a Rx and battery. Plus, it's made for PFV and has a Go Pro tray on it already.

    Hmmm :evil
  11. RC Pilot

    RC Pilot Shut up and fly!

    Joined:
    Apr 12, 2009
    Oddometer:
    5,823
    Location:
    The garage
    Might get enough snow on Friday to use this!
    <iframe src="http://player.vimeo.com/video/18220231" width="500" height="375" frameborder="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen></iframe> <p><a href="http://vimeo.com/18220231">Kyosho Blizzard 27 Dec 2010</a> from <a href="http://vimeo.com/user2911670">J B</a> on <a href="http://vimeo.com">Vimeo</a>.</p>
  12. Saget

    Saget Not quite a full house

    Joined:
    Mar 2, 2007
    Oddometer:
    491
    Location:
    Somewhere near Seattle

    I'd go for it!! I'm not familiar with that RCTimer board, just been using the KK's so far. But I like the looks of it, since it has interfaces for GPS and such. That would be fun to play with once you get familiar.

    What do you want to use for an FPV setup? That seems to be a whole 'nuther can of worms I haven't cracked open yet. I hear you need a HAM license to legally operate some systems (in the U.S.), although I'm sure there must be some lower power units that don't require it.

    I can see why you'd want to use a low-res FPV link for navigation and aiming your camera, while still carrying a GoPro or similar to record HD video at the same time. Currently on my aerial photo/video missions, I'm shooting blind. Aiming the camera is just a guess.
  13. DakarNick

    DakarNick Swabee

    Joined:
    Oct 14, 2005
    Oddometer:
    7,084
    Location:
    Parker, Colorado
    Did it! I'm researching FCs now. Man, this stuff is so over my head. Can I PM or email you, Saget, about some controller questions?
  14. Saget

    Saget Not quite a full house

    Joined:
    Mar 2, 2007
    Oddometer:
    491
    Location:
    Somewhere near Seattle
    Absolutely!! Don't know if I'll have any answers, but we can sure try.
  15. DakarNick

    DakarNick Swabee

    Joined:
    Oct 14, 2005
    Oddometer:
    7,084
    Location:
    Parker, Colorado
    Got my car back together, my little 1/18th scale HPI Mini Recon. It's pretty fun. I fried the stock brushed ESC so I put in a 1/10th scale Hobbywing BL kit with a 7800kv BL motor. At the LHS track the 1/8th scale truggies were hauling ass so I had to keep out of their way. :D

    Burned up the rear diff in the process :lol3

    In other news. I ordered a KK 2.0 FC for my quad which should be arriving tomorrow. I'll install the KK and when the Crius AIOP gets here I'll play with that and see how it works. The KK is pretty straightforward, though.

    Correct, Saget? :D
  16. Saget

    Saget Not quite a full house

    Joined:
    Mar 2, 2007
    Oddometer:
    491
    Location:
    Somewhere near Seattle
    Tuning the KK2 board isn't difficult, but it IS a bit time-consuming to get it just right. Lots of trial & error.

    I'd recommend following the instructions in the "PI Gain Setup" file you'll find on the HK site, under the "Files" tab for the KK2 board. Or here's a direct link: http://www.hobbyking.com/hobbyking/store/uploads/475200704X68736X56.pdf

    You should set the Roll/Pitch I-Gain to zero before you start. Also set the Height Dampening to zero. Concentrate on tuning just the Roll/Pitch/Yaw P-Gain values first. Once you get a good steady hover by adjusting only the P-Gains, THEN start increasing the I-Gains to get smooth forward flight. Finally, add height dampening (if you want) to help smooth out your throttle inputs.

    Once you have all that dialed in, you can go to the Stick Scaling menu and play with those values. Those are sort of like programming the end point adjustments on your transmitter. You can adjust how sensitive the controls are to your liking. Higher values are like having more servo throw; it makes the model more sensitive.

    You'll find that there is also an "auto level" capability on the KK board. Leave it turned off until you get everything else right!! It'll just get in your way. If it's on and your quad doesn't behave right, you won't know if it's a gain setting or auto-level messing you up. Best to just eliminate it at first.

    And take lots of notes as you go!! Write down every value you set, how it performed, and what props you were using. Different props make a huge difference in how it behaves, and you may want to revert back to some other setup.

    Here's a good youtube video that shows what happens with different gain settings:
    http://www.youtube.com/watch?v=YNzqTGEl2xQ
  17. Saget

    Saget Not quite a full house

    Joined:
    Mar 2, 2007
    Oddometer:
    491
    Location:
    Somewhere near Seattle
    Aw shit... I forgot one important step. Make sure you do the sensor calibration first! It's in one of the menus on the KK board, and it will have instructions right on the LCD. It's very simple... it's just a matter of keeping your quad level and still for a few seconds while the controller figures out where it is. Just have to do it once.
  18. RC Pilot

    RC Pilot Shut up and fly!

    Joined:
    Apr 12, 2009
    Oddometer:
    5,823
    Location:
    The garage
    Ready for the snow!
    [​IMG]
  19. dirt hokie

    dirt hokie Been here awhile

    Joined:
    Oct 3, 2007
    Oddometer:
    750
    Location:
    Eastern shore of MD
    question for RC home builders. I am in the process of making a RC ground effect boat. Using styrofoam and epoxy. I was going to cover it with fiberglass or other fabric. What is a good type/ weight of cloth to use. The model is about 1/4 scale. It will be powered by a weedeater type motor. its 5 ft. wide and will be about 5-6ft long nose to tail. I built sail boats and small speed boats with foam and fiberglass before, but i just used what ever stuff i had lying around left over from a real boat project, so i know they where pretty heavy for a rc craft. I want to keep this " boat" as light as possable but also dont want to spend to much money as its a experiment and may not work.

    Another question for the plane guys, the wing area is about 1450 sqr inches. I will be using a stock 35 cc weed eater motor with a pusher prop. I think a 16" three blade will work. They seem cheap enough so i was going to try a few differnt pitch and dia. Can any body recomend a starting point for props size.

    thanks
  20. Tilt2turn

    Tilt2turn conveniently misremembering

    Joined:
    Nov 2, 2006
    Oddometer:
    495
    Location:
    Western Slope, CO
    [​IMG]

    I picked up my RC10GT about 12 years ago. Ran it for a bit, then decided to eliminate the pull start and use a starter box. That never really worked, and I put it away.
    Well, I got it back out recently, and decided I have a defective motor in the starter box. Amazingly, the exact same box and parts for it are still available, so I will order a new motor and see how that works. I had forgotten about some of the cool mods I did to it, so it will be exciting to get it running again.