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Old Dec 02, 2011, 10:43 AM
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Joined Nov 2011
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First Quad-X build: Need some advice

I am building my first and I need some feedback on my current parts list. I also have some questions about flight controllers, power distribution, and some other technical specifics.

I have been reading these forums extensively for the last couple weeks and have decided that I want to build a Quad that's probably around 500mm motor to motor. Hopefully one that is stable enough that I will be able to eventually do AVP once I get good at flying it. I am not really interested in doing aerobatics at the moment. I want to build as much of this as I can because I want to have an appreciation of how it all works and also because I am trying to keep to a relatively tight budget.

So here's the list:

Motors
http://hobbyking.com/hobbyking/store...idProduct=4700
Highly recommended by OMM

ESCs
http://hobbyking.com/hobbyking/store...idProduct=2163
I saw these paired with the above motors a lot. Is 25A excessive? Will 18A ESCs run hot? What advantage do these have over the cheaper HobbyKing ESCs? What sort of programming am I going to do with these?

ESC Programmer
http://hobbyking.com/hobbyking/store...idProduct=2169
I am not going to dick around with listening to beeps if I am gong to get a programmable ESC.

Props
I am really not sure about this one. I know that 10" props give more lift and that 8" ones are more responsive. What's best for what I'm looking for? Are the 3-blade props a good compromise or is there a reason I shouldn't use them? Also what about pitch? 10x6 vs 10x4.7 vs 10x4.5?

Rx/Tx
http://hobbyking.com/hobbyking/store...Firmware_.html
Is this going to work well out of the box? What are the advantages of buying the $45 programmer/backlight?

Battery and Charger
Not sure yet

Frame
DIY using 1/2" 6061 Aluminum tubing

Power Distribution
Can't I just wire up the ESCs to the battery in parallel? If I can't then why not? What does a prebuilt power distribution board really do?

Flight Controller
I am thinking of using MultiWii and was planning to just buy an Arduino Pro Mini, WMP, and NK and wire them up. Then I saw all this talk of shields and mounting boards? What do these do and why should I buy one? I don't want to have to spend $150 on the brain of the Quad. Will the setup I desribed work or do I need to buy a shield? Why are they called shields, they certainly don't look like they shield anything from EM.
I recently discovered CopterControl, its a little pricier than my planned route but if it really is worlds better than I might get it. What are the advantages of OpenPilot over MultiWii?

That's my slightly rambling first post. I would really appreciate some feedback. If you or someone you know is willing to let me PM you with more questions please let me know.

Thanks for reading down to this point.
PyroPanda is offline Find More Posts by PyroPanda
Last edited by PyroPanda; Dec 02, 2011 at 10:46 AM. Reason: added section on battery
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Old Dec 02, 2011, 12:01 PM
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Ottawa, ON
Joined Oct 2010
105 Posts
the Eagle N6 controller is very easy and newbie friendly. (it's my first X quad as well) Dip switches so you dont have to play around with programming or flashing chips. it is just 3 gyros it doesn't have any autopilot or GPS.
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Old Dec 02, 2011, 12:25 PM
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Joined Nov 2011
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I am not really interested in a kk board and I don't mind flashing chips.

I am only interested in MultiWii (which I would probably assemble myself) or possibly CopterControl.
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Old Dec 02, 2011, 05:57 PM
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UK, Buckinghamshire, High Wycombe
Joined Feb 2007
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have a read of this bruv

http://www.rcgroups.com/forums/showt...6#post19312519
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