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Old Nov 11, 2011, 01:59 AM
Dreamer
Australia, TAS, Memana
Joined Aug 2004
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Originally Posted by chipp View Post
AHHHH brain wave i finally get what you are talking about now, I was always under the assumption that the motor mount could bolt to either end of the motor
hahahaha ... tends to twist the wires up a little if you anchor the motor by the bell end
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Old Nov 11, 2011, 09:24 AM
Swinger. Heli and planks!
BennettOZ84's Avatar
United States, OR, Foster
Joined Mar 2007
945 Posts
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Originally Posted by kaz1104 View Post
Have looked at those Turnigy motors and noticed that people seem to be using them. What propeller do you use?. Are they okay on a 10x4.7 or happier on a 9x4.7?
The Turnigy motors work best it seems on the 9x4.7 with great results, I have ran the 10x4.7 as well and it works fine too, gets a little hot, but not to bad.
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Old Nov 12, 2011, 10:53 AM
Just a yard bird
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Las Vegas Nv.
Joined Mar 2007
1,842 Posts
Could you get a 12in prop on this frame? I got some new 740Kv motors looking for a Y6 and this looks very promising for the task. Also can the landing skids be replaced or are they part of the frame structure reason being a buddy ordered the new Gorilla Gear Landing Skids for his 500 heili and they are tough as nails and they bouce so they act like a shock absorber.
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Old Nov 12, 2011, 05:29 PM
Dreamer
Australia, TAS, Memana
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Originally Posted by kd4wen View Post
Could you get a 12in prop on this frame? I got some new 740Kv motors looking for a Y6 and this looks very promising for the task. Also can the landing skids be replaced or are they part of the frame structure reason being a buddy ordered the new Gorilla Gear Landing Skids for his 500 heili and they are tough as nails and they bouce so they act like a shock absorber.
Hi kd4wen,
Yes, the frame will happily clear 12" propellers, probably anything up to about 16".
The skids are part of the frame, but they could be cut off. The skids do actually look pretty good though. A fair amount of spring and seems pretty tough.

Mark
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Old Nov 13, 2011, 02:47 AM
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Joined Feb 2011
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Originally Posted by kaz1104 View Post
Carbon?? My understanding was that it was a nylon material and aluminium??

Mark
sorry, i mean 2mm black nylon and 15mm aluminium square tube

thanks
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Old Nov 14, 2011, 02:27 AM
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Joined Dec 2010
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Originally Posted by kaz1104 View Post
Hi kd4wen,
Yes, the frame will happily clear 12" propellers, probably anything up to about 16".
The skids are part of the frame, but they could be cut off. The skids do actually look pretty good though. A fair amount of spring and seems pretty tough.

Mark
Hey Mark

Have you got any further with your Y6? anymore pics?
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Old Nov 14, 2011, 02:53 AM
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Australia, TAS, Memana
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The Y6 is the next thing on the table. Weighing up which flight control board to use.... too many choices. Motors are a question too. Was almost settled on the KDA 20-22L but the CC quad I just finished has rctimer 2830/14 750kv motors swinging 10x4.7 (or 4.5?) Have to say I'm pretty impressed with them. I just shortened the motor shafts so that the propeller collets sit right down onto the motor. Figure there is less risk of bending motor shafts that way. I spend part of the weekend finishing, flying and tuning an openpilot copter control FPV project. Should have some updates on the y6 soon. Its early summer and its not too uncomfortable out in the shed of an evening so I can make a bit of progress if work hasn't been too frantic.

Mark
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Old Nov 14, 2011, 02:59 AM
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Quote:
Originally Posted by kaz1104 View Post
The Y6 is the next thing on the table. Weighing up which flight control board to use.... too many choices. Motors are a question too. Was almost settled on the KDA 20-22L but the CC quad I just finished has rctimer 2830/14 750kv motors swinging 10x4.7 (or 4.5?) Have to say I'm pretty impressed with them. I just shortened the motor shafts so that the propeller collets sit right down onto the motor. Figure there is less risk of bending motor shafts that way. I spend part of the weekend finishing, flying and tuning an openpilot copter control FPV project. Should have some updates on the y6 soon. Its early summer and its not too uncomfortable out in the shed of an evening so I can make a bit of progress if work hasn't been too frantic.

Mark
Hi Mark

There is also this series of motors to choose from
http://www.hobbyking.com/hobbyking/s...URNIGY_XP.html
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Old Nov 14, 2011, 03:03 AM
Dreamer
Australia, TAS, Memana
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Originally Posted by glenncol View Post
Hi Mark

There is also this series of motors to choose from
http://www.hobbyking.com/hobbyking/s...URNIGY_XP.html
Nooooo ... not more choices.
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Old Nov 14, 2011, 03:05 AM
Dreamer
Australia, TAS, Memana
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I already have some rctimer 2830/14's and some 20-22L's, so I can make progress without waiting on parts (also have all the other bits I need to get the Y6 in the air).
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Old Nov 14, 2011, 03:14 AM
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Originally Posted by kaz1104 View Post
Nooooo ... not more choices.
LOL sorry mate

What do you think of them?
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Old Nov 14, 2011, 03:22 AM
Dreamer
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The 2836 low kv ones look pretty good, and the way the shart is, makes them good for a y6. I was actually pretty surprised ... i normally look to a motor around 900 - 1100 kv. The 750 kv motor seemed to have plenty of lifting power and hovers a fairly heavy quad at around 1/2 throttle. Maybe the higher kv motors are not actually able to spin the 10x4.7 props at any greater rpm than the 750 kv ones ... interesting. Also curious are the next step 35mm motors. I guess their weight kinda rules them out for smaller quads. Some of the short but 35mm diameter ones are getting close though.
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Old Nov 14, 2011, 04:54 AM
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Originally Posted by kaz1104 View Post
The 2836 low kv ones look pretty good, and the way the shart is, makes them good for a y6. I was actually pretty surprised ... i normally look to a motor around 900 - 1100 kv. The 750 kv motor seemed to have plenty of lifting power and hovers a fairly heavy quad at around 1/2 throttle. Maybe the higher kv motors are not actually able to spin the 10x4.7 props at any greater rpm than the 750 kv ones ... interesting. Also curious are the next step 35mm motors. I guess their weight kinda rules them out for smaller quads. Some of the short but 35mm diameter ones are getting close though.
I think the 3530/14 looks like a good deal @73g and 1100g of thrust

I understand that working out the lifting power goes pretty much like this, Quad copter with 4 motors add the max thrust together of all motors , so in the case of the above motor

4400g of thrust, so if the copter including the camera gear comes in at around 2200g in theory the copter will hover at around half throttle?

If that is the case with a quad and I assume a X config hex and octo, but with a Y config hex where thy seem to run in a coaxial type set up are you still adding all 6 motors together?
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Old Nov 14, 2011, 05:22 AM
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Originally Posted by glenncol View Post
I think the 3530/14 looks like a good deal @73g and 1100g of thrust

I understand that working out the lifting power goes pretty much like this, Quad copter with 4 motors add the max thrust together of all motors , so in the case of the above motor

4400g of thrust, so if the copter including the camera gear comes in at around 2200g in theory the copter will hover at around half throttle?

If that is the case with a quad and I assume a X config hex and octo, but with a Y config hex where thy seem to run in a coaxial type set up are you still adding all 6 motors together?
The comments left under the 3530/14 suggest that the motor only produces 1100g thrust with an 8x4 on 4 cells, ie doesn't have the "balls" to swing a big prop. Sometimes the numbers aren't always useful especially in relation to static vs effective thrust. At 73 grams it is in a realistic weight range.
Yes I will use 6 motors. The heli could be set up as a y4 but then weight distribution, redundency, lifting power, are not as good.

Mark
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Old Nov 14, 2011, 05:45 AM
Dreamer
Australia, TAS, Memana
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I figure it probably makes more sense to talk in the number of amps at a given voltage, or watts ie the amount of energy, required to lift a given weight. There would be a multitude of ways to reach this target, within the range of voltage, propeller size, motor kv, flight time, number of motors etc, etc, that you desire, being aware that each affects the other.
Its like ... More battery = longer flight time ...BUT bigger battery = more weight = shorter flight time. And so around in circles.
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