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« on: April 23, 2013, 08:19:35 PM »
RcBharat
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Hello folks,

It has been very long since I posted something very interesting. Working very busy these on some projects mainly multi rotors. Was actually very lucky to work on some huge ones too.

This quad DHRUV was also made for one of my clients for aerial photography with an SLR camera. Couldn't find enough time to click pictures while building it but I have got permission from my client to share its design and build details if anyone finds it interesting.

It's a 40 inch quad with AUW almost 4kgs

A few more details:

Motor to Motor : 40inches
Frame Composition: Aluminium and fiber glass
Motors:  730Kv http://www.rcbharat.com/brushless-motors/190-a3250-6-730kv-brushless-motor.html
ESC : cloud 80Amps ESC  http://www.rcbharat.com/escubecvr/206-mystery-pentium-80a-brushless-esc-w-o-bec.html
Battery: 2500mah 4cell 40C liposx2
Props: 12x4.5 SF
Controller: DJI Naza with GPS
Flight time recorded: 18min

Test Flight 01


Test Flight 02
http://www.youtube.com/watch?v=t7nL0hRYOOc&feature=youtu.be

Sai Krishna
9989120724
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DHRUV 01.jpg
Quad- DHRUV
* DHRUV 01.jpg (31.16 KB, 416x512 - viewed 419 times.)
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« Reply #1 on: April 23, 2013, 08:50:15 PM »
RcBharat
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2nd video link fixed Thumbs Up
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« Reply #2 on: April 23, 2013, 09:17:20 PM »
Abhishek Goudar
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Awesome Smiley
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« Reply #3 on: April 23, 2013, 09:26:37 PM »
arun.sreelakam
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Fly High
Did you tested the GPS and failsafe..? I built a naza hex recently..  but a bit scared to test the GPS and fail safe...

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« Reply #4 on: April 23, 2013, 10:05:11 PM »
RcBharat
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Thanks Abhishek. Will reply to your pm soon

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« Reply #5 on: April 23, 2013, 10:08:33 PM »
RcBharat
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Hi arun

This isn't my first project with Naza. Already finished a dozen.

Go for gps, it's cool. I always prefer flying in place which aren't much crowded when using gps and use a proper tx with two 3 position switches.

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« Reply #6 on: April 24, 2013, 12:24:12 AM »
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Just to add on RCBHARAT's comment, do prefer a radio which has fail safe function available on channel 5/6/7/8.

You can trust DJI.

Good luck.

Sphere Hobbies
DJI Distributor, India
+91-99251-20630
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Sphere Hobbies
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www.spherehobbies.com/india
You can trust the radio so much until your first crash with it.
 

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« Reply #7 on: April 24, 2013, 08:24:38 AM »
RcBharat
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Yes.
I always feel that failsafe is something which should be used when you really feel you cannot get the machine back.
I always setup failsale by turning the tranamitter off.

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« Reply #8 on: April 24, 2013, 12:47:11 PM »
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Quote from: RcBharat on April 23, 2013, 08:19:35 PM
A few more details:

Motor to Motor : 40inches
Frame Composition: Aluminium and fiber glass
Motors:  730Kv http://www.rcbharat.com/brushless-motors/190-a3250-6-730kv-brushless-motor.html
ESC : cloud 80Amps ESC  http://www.rcbharat.com/escubecvr/206-mystery-pentium-80a-brushless-esc-w-o-bec.html
Battery: 2500mah 4cell 40C liposx2
Props: 12x4.5 SF
Controller: DJI Naza with GPS
Flight time recorded: 18min

Could you tell us more about your payload for a flight time of 18 minutes? Do you have more details on payload capacity of the craft?

Regards,

Sphere Hobbies
+91-99251-20630
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Sphere Hobbies
+91-99251-20630
www.spherehobbies.com/india
You can trust the radio so much until your first crash with it.
 

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« Reply #9 on: April 24, 2013, 06:30:47 PM »
RcBharat
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Not a problem for me to share a few extra details, but I have to ask my client if it is ok for him.

Anyways could you please let us know what is the reason for asking?
If you need one please write to us at rcbharat@gmail.com, can pass you the complete details.

Sai Krishna
www.rcbharat.com
9989120724

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« Reply #10 on: April 24, 2013, 06:38:39 PM »
RcBharat
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@spherehobbies

Please let me know if you guys are the official distributors/dealers for dji in India, as I searched for dji indian delears couple of months back to buy a few naza's and couldn't find any official distributor in India on dji website.

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« Reply #11 on: April 24, 2013, 06:54:32 PM »
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@ RCBharat

Yes, we are officially dealer for DJI in India (if you write DJI, they would confirm).

Per DJI policy, it would take some time before they publish Sphere Hobbies on their web site as dealer/distributor. However, they always transfer us all the queries of Southeast Asia.

Regards,

Sphere Hobbies
+91-99251-20630
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Sphere Hobbies
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www.spherehobbies.com/india
You can trust the radio so much until your first crash with it.
 

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« Reply #12 on: April 24, 2013, 06:58:57 PM »
RcBharat
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That's cool.
Wishing you good luck.

THANKS
Sai Krishna
9989120724
Www.rcbharat.com
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« Reply #13 on: April 24, 2013, 08:10:55 PM »
Rahulvyas
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"If it's man-made and it flies, it will crash."
Cool build.
What material did you use to build the landing skids?
I suppose its a kind of plastic? Is it good enough for hard landings?
I am building a hex and need help with building the landing gear.
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« Reply #14 on: April 24, 2013, 08:13:57 PM »
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"If it's man-made and it flies, it will crash."
if you land hard, your aluminium booms will bend. I think its dangerous. Why did you choose this type of landing skid?
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« Reply #15 on: April 24, 2013, 08:32:50 PM »
RcBharat
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Rahul
The landing gear is made out of 4mm fiber glass. Which is hard enough if the quad falls from 15-20 feet also.

Anyways I don't land hard, so no worry of aluminium bending/breaking.Grin

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« Reply #16 on: April 24, 2013, 08:40:01 PM »
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"If it's man-made and it flies, it will crash."
haha cool.
What is the center plate made from?
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-2814 700kv Carbon Fiber 685mm Quadcopter ( tuning PIDs)
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« Reply #17 on: April 24, 2013, 08:41:57 PM »
RcBharat
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There are 3 center plates all made from 2mm fiber glass, laser cut.

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« Reply #18 on: April 28, 2013, 03:30:39 PM »
RcBharat
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A few pics from today's flying

http://www.rcbharat.com/Pics/0000.JPG
Quad- DHRUV


http://www.rcbharat.com/Pics/000.JPG
Quad- DHRUV


http://www.rcbharat.com/Pics/001.JPG
Quad- DHRUV


http://www.rcbharat.com/Pics/002.JPG
Quad- DHRUV


http://www.rcbharat.com/Pics/003.JPG
Quad- DHRUV


http://www.rcbharat.com/Pics/004.JPG
Quad- DHRUV


http://www.rcbharat.com/Pics/005.JPG
Quad- DHRUV


http://www.rcbharat.com/Pics/006.JPG
Quad- DHRUV


http://www.rcbharat.com/Pics/007.JPG
Quad- DHRUV


Sai Krishna
www.rcbharat.com
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« Reply #19 on: April 30, 2013, 11:54:41 PM »
RcBharat
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Aerial Pics from DHRUV

http://rcbharat.com/Pics/DHRUV%20Pis/Go%20Pro%2001.jpg
Quad- DHRUV


http://rcbharat.com/Pics/DHRUV%20Pis/Go%20Pro%2002.jpg
Quad- DHRUV


http://rcbharat.com/Pics/DHRUV%20Pis/Go%20Pro%2003.jpg
Quad- DHRUV


http://rcbharat.com/Pics/DHRUV%20Pis/Go%20Pro%2004.jpg
Quad- DHRUV


http://rcbharat.com/Pics/DHRUV%20Pis/Go%20Pro%2005.jpg
Quad- DHRUV


http://rcbharat.com/Pics/DHRUV%20Pis/Go%20Pro%2006.jpg
Quad- DHRUV


http://rcbharat.com/Pics/DHRUV%20Pis/Go%20PRo%2007.jpg
Quad- DHRUV


http://rcbharat.com/Pics/DHRUV%20Pis/Go%20Pro%2008.jpg
Quad- DHRUV


http://rcbharat.com/Pics/DHRUV%20Pis/Go%20Pro%2009.jpg
Quad- DHRUV


http://rcbharat.com/Pics/DHRUV%20Pis/Go%20Pro%2010.jpg
Quad- DHRUV


http://rcbharat.com/Pics/DHRUV%20Pis/Go%20Pro%2011.jpg
Quad- DHRUV


http://rcbharat.com/Pics/DHRUV%20Pis/Go%20Pro%2012.jpg
Quad- DHRUV


Regards
SAI KRISHNA
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« Reply #20 on: May 01, 2013, 12:38:22 AM »
veloci
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Wow, awesome aerial pics!
Which camera sir?

EDIT - Looks like a GoPro from the pictures above. Is it?
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« Reply #21 on: May 01, 2013, 12:40:11 AM »
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Thanks veloci

Yes taken from GoPro Hero mounted on a 2 axis gimble at alomost 300ft from ground.
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« Reply #22 on: May 01, 2013, 07:07:56 AM »
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Practice, and only Practice will make you perfect
Super pics there sai, i see the GoPro in action Wink
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« Reply #23 on: May 01, 2013, 09:52:49 AM »
RcBharat
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Thanks very much sir for the compliments and camera

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« Reply #24 on: May 01, 2013, 09:56:28 AM »
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Nice quad and nice images too. Thumbs Up
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« Reply #25 on: May 01, 2013, 11:42:04 AM »
RcBharat
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Thanks Satyagupta.


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