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Old Nov 10, 2012, 04:28 PM
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v929/v949 = 30mm x 30mm

v939 = 25mm x 25mm

I've just measured both.
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Old Nov 10, 2012, 04:43 PM
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Quote:
Originally Posted by mystman View Post
v929/v949 = 30mm x 30mm

v939 = 25mm x 25mm

I've just measured both.
Awesome, thanks!
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Old Nov 10, 2012, 06:24 PM
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My M2M is 17cm.
It does make a lot of noise, I might have to try to balance the props a little bit. but I think it is the foam frame acting as a resonance box. there is enough clearance (5mm on both sides) between the props and the foam, so nothing is hitting it.

Quote:
Originally Posted by midelic View Post
Which size is yor frame M2M-motor center diameter?
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Old Nov 11, 2012, 03:48 AM
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Wow very cool!
Can you share your design? I am really interested in making one of these
Which foam are your using?


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Originally Posted by KoekieMonster View Post
Well, the foam quadcopter is finished.
Here a little youtube vid, one from outside will follow (it still does flips)
And in the attachments the thing itself.
http://youtu.be/ErSgFe1uVxI
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Old Nov 11, 2012, 05:09 AM
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I cut V929 main frame and reduced weight from 3.5 grams to 1.9 grams.Too much unnecessary plastic.ALso V929 new frame with bamboo arms weight
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Last edited by midelic; Nov 11, 2012 at 11:09 AM.
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Old Nov 11, 2012, 06:45 AM
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I observed sometimes there is a misunderstanding regarding quad M2M(diagonal) diameter size.So, is the size measured like in the picture below?

Quote:
Originally Posted by KoekieMonster View Post
My M2M is 17cm.
Jesolins your wish is my command.
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Last edited by midelic; Nov 11, 2012 at 05:11 PM. Reason: quad rotated with 45 deg.
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Old Nov 11, 2012, 10:00 AM
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Yes it is.

Quote:
Originally Posted by midelic View Post
I observed sometimes there is a misunderstanding regarding quad M2M(diagonal) diameter size.So, is the size measured like in the picture below?
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Old Nov 11, 2012, 04:29 PM
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M,
Correct. The diameter is the useful dimension when measuring multicopters On your graphic rotate your quad 45 degrees so it is clear that motor to motor center on the same axis is the diameter.
Cheers,
Jim
Quadrocopter and Tricopter Info Mega Link Index
Quote:
Originally Posted by midelic View Post
I observed sometimes there is a misunderstanding regarding quad M2M(diagonal) diameter size.So, is the size measured like in the picture below?
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Old Nov 11, 2012, 11:23 PM
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Done!!

V939 Board
Aliexpress - 7mm dia, 1mm shaft, thin black-white wires
Ladybird Props, Turnigy Nano-Tech 300mAh
Balsa Body
MacD - Landing Gear and Cover!
AUW = 30.15gms
Motor-Motor = 160mm (6.3")

Other Notes:
Tx = Turnigy 9x
Have to bind everytime power is turned on
Had to reverse Elev channel
Pretty stable hover - but have to keep using a dash of elev and ail to keep it in one place, otherwise fantastic!!
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Last edited by Raj Quest; Nov 11, 2012 at 11:43 PM.
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Old Nov 11, 2012, 11:41 PM
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Advise Needed:

I already have V939....

I want to build another one of these micro quads.....
This time will it be worth getting a V929 instead of V939?

1) I mean in terms of flight stability and characteristics.... is a V929 better?
2) I don't think I'll have to bind it every time I switch ON?
3) It costs about $ 4.00 more than V939 - that is acceptable.
4) This time I'll go with 7x20 hollow-cup ladybird motors, to feel a bit more powerful.
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Last edited by Raj Quest; Nov 11, 2012 at 11:48 PM.
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Old Nov 12, 2012, 04:03 AM
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Quote:
Originally Posted by Raj Quest View Post
I already have V939....

I want to build another one of these micro quads.....
This time will it be worth getting a V929 instead of V939?

1) I mean in terms of flight stability and characteristics.... is a V929 better?
2) I don't think I'll have to bind it every time I switch ON?
3) It costs about $ 4.00 more than V939 - that is acceptable.
4) This time I'll go with 7x20 hollow-cup ladybird motors, to feel a bit more powerful.
1) + 3) Maybe you should wait for Syma X1 board to come in stock at banggood.com. It's $9.51
http://www.banggood.com/Wholesale-Sy...2-p-54191.html

2) v929 = no rebind each battery change

4) I've just got my new "7mm Hollow Cup Motor for Walkera Ladybird / Ladybird V2 Quadcopter".
They are working just as fine with real good lift and pitch. I've fininished making a new v939/v929 clone with them and I'm happy with the overall performance.
http://www.banggood.com/Wholesale-7m...r-p-51897.html
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Old Nov 12, 2012, 05:04 AM
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Raj,
How much weigh your quad?Motors are 7x16 mm?
Yes with V929 controler is more stable than V939.

Is there any difference in flight caracteristics between Walkers motors and U816 motors?Because both motors have the same size 7x20mm.If not, why not buy U816-3.20 dollars each , have a lot more "extra"(motor guard socket for arm,CF arms and plug connector) than Walkera motors, only for 0.31 dollars more on each motor.I think there is "horde" efect,people think that somehow the poor performances of U816 it is caused by the motors and vice versa the good performances of Walkera is also somehow causes by their motors and jumping to buy them.In reality the difference in performances is caused in this case by the controllers not by motors.
I think it is reasonable to buy Walkera motors only if you already have the plastic motor guard and plugs from previous motors(damaged).

http://www.banggood.com/Wholesale-Ud...4-p-48836.html

http://www.banggood.com/Wholesale-Ud...3-p-48839.html
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Old Nov 12, 2012, 05:14 AM
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Quote:
Originally Posted by midelic View Post
.If not, why not buy U816-3.20 dollars each , have a lot more "extra"(motor guard socket for arm,CF arms and plug connector) than Walkera motors, only for 0.31 dollars more on each motor.
I'm doing both. I've just ordered these motors to check performance,
but I'm still ordering the UDI motorams as they are real big deal. Nothing to complain about. Real good performance.

If you need real good punch and fast lift, you should use the v939 board. The v929 isn't as fast but feels more stable.
I like and use both variants. Different flight characterics, different birds, different handling.
Can't say one is better than the other.

Can't wait to test the vitality and syma boards!
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Old Nov 12, 2012, 05:55 AM
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Thanks,

Anyone tested Vitality-H36 board? any Reviews on that?

http://www.banggood.com/Wholesale-Vi...4-p-52468.html
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Old Nov 12, 2012, 06:15 AM
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Quote:
Originally Posted by Raj Quest View Post
Thanks,

Anyone tested Vitality-H36 board? any Reviews on that?

http://www.banggood.com/Wholesale-Vi...4-p-52468.html
Still waiting for it as I've ordered it several days before.
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