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Old Mar 14, 2010, 11:17 PM
rp181 is offline
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Question

Need help for quadrocopter setup for autonomous flight


Hello,
I am planning on making a tricopter to use in experiments for flight control. I am new to these kind of things, my past experience is in high power electronics (http://rp181.fortscribe.com). I am looking for some help.

The design needs to be able to support payloads, weight is undetermined. It will probably carry 2 webcams, a 3" square PC board, some servos, laser rangefinders and a inertial measurement unit.
I want to do this in a compact footprint, so spacing between blades will be minimal (what are negative effects of this? balance?).
3 of these motors looks good:
http://www.hobbyking.com/hobbyking/s...0_750Kv_/_600W
Is this a good motor in terms of power,speed, etc..? What props should I use? ESC's?

The frame will be self built, aluminum or carbon fiber, or nylon.
Last edited by rp181; Mar 14, 2010 at 11:25 PM.
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Old Mar 15, 2010, 02:20 AM
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It is hard to guess without a weight estimate but that motor seems way to big, here is a good Tri thread that is very active.

https://www.rcgroups.com/forums/show....php?t=1142429
Old Mar 15, 2010, 08:13 AM
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Is their a problem using larger motors/ESC/batteries? Weight is not a problem.
Does a 14x6 prop mean a 14" diameter prop?
Old Mar 15, 2010, 10:30 AM
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Quote:
Originally Posted by rp181 View Post
Is their a problem using larger motors/ESC/batteries? Weight is not a problem.
Does a 14x6 prop mean a 14" diameter prop?
14" is the diameter of the prop.

I think that size of a Tri is uncharted waters around here, should work fine in theory.
Old Mar 15, 2010, 09:48 PM
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I have a new list:
4x http://www.hobbycity.com/hobbycity/s...idProduct=5686 ($12.74)
1x http://www.hobbycity.com/hobbycity/s...ack__(5pcs/bag) ($2.99)
4x http://www.hobbycity.com/hobbycity/s...idProduct=4312 ($11.90)
1x http://www.hobbycity.com/hobbycity/s...idProduct=2169 ($6.95)

Will these work together? What battery should I use for ~30 min. of flight? How about gyros? controller will be self built.
Old Mar 16, 2010, 05:07 PM
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How close can the rotors be spaced?
Old Mar 17, 2010, 10:38 PM
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I'm in the same spot as you (just starting into my first tricopter build) so I'll forgo any advice beyond seconding what the Capt said-

study this thread

https://www.rcgroups.com/forums/show....php?t=1142429


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