BRAINWING INS SYSTEM -> MULTIROTOR + FIXEDWING

Started by hemanthtguru, November 26, 2011, 01:15:20 AM

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hemanthtguru

Multirotor Freak

AyushGupta

6 amps per motor or by the entire drive of 4 motors??

hemanthtguru

Per motor ayush; not all ....entire drive is about just above 20 amp
Multirotor Freak

vineet

thankyou for clearing the doubt  :salute:
really ,could you please share a link for that motor it would be great ,

Swapnil

#29
+1
I'd like to get those motors for my quad too.

Dharmik

Hey nice work hemanth bro. I found that just bit more throttle above hover position gives allmost double flight time so 36 minutes is possible. There is record on rcg '51 min in air' without payload you can achieve that and as you said overall current draw is 20Amp then you can push the limits. Keep it up.

hemanthtguru

Here is the link of the motor:

http://www.rctigermotor.com/show.php?contentid=145

But please get ready to punch your pockets for those
Multirotor Freak

hemanthtguru

Please read the specs of the motors; Then all the doubts about the fly time will be clarified.....
Multirotor Freak

Swapnil

Woah! Amazing specs! Just went through the tech data.
Price is a pocket burner, though...

vineet


hemanthtguru

My new AD8 Heavy Lift clone ; 60% the cost but 96% carbon fiber






Motor mount




Belly of the beast


Center plate 5mm 3quill carbon fiber



Call me for pricing....
Multirotor Freak

atulrajguru9

First of all congrats on your achievement ... your achievement is so great that its hard to believe.





atulrajguru9

I did some calculations and seems something is wrong ...

Time = Battery capacity / Current drawn

Battery capacity (Ah) = Current drawn (I) x Time (H)
so, 2.7 = 2.7 * 1

It is said that given system needs 20 amps

Time = Battery capacity / Current drawn

Time = 2.7 / 20

Time = 0.135 (H)  = 8 minutes

this is considering that it will take 11.1 V all the time

Now If we consider it only take 5.5 V then also flight time will be about 16 minutes

Can Hemanth/anyone please explain where my calculation are wrong?

jeevan reddy


hemanthtguru

Sir for which MR did u do the calculation Quad or my new octa
Multirotor Freak

satyagupta

Quote from: hemanthtguru on March 31, 2012, 10:24:26 PM
Its call T motor; 6 amps average current draw for regular flight at 60% throttle; Try them or meet me I will show them to you in reality.  :hatsoff:

Saw the motor link thanks for that..

Btw what are the lights that you have used. And where did you buy that frame from??
one stop for multirotor needs:
www.quadkopters.com

http://www.facebook.com/QuadKopters
https://www.youtube.com/user/QuadKopters
https://www.instagram.com/quadkopters

murarie

#41
Quote from: atulrajguru9 on April 19, 2012, 08:23:24 PM
I did some calculations and seems something is wrong …
...
...
Can Hemanth/anyone please explain where my calculation are wrong?


Exactly my view, he says 6 amp avg current draw ie 24amps for 4 motors. Not 20 amp like you calculated.
I have various quads and various motors including the said T motor, mine with a 1045 prop draws 9 amps at 75% throttle.

hemanthtguru

The lights are from HK and the frame custom made out carbon fiber
Multirotor Freak

hemanthtguru

I will post the calculation please give some time,,,,,
Multirotor Freak

atulrajguru9

#44
Quote from: murarie on April 20, 2012, 08:01:49 AM
Not 20 amp like you calculated.


Check the reply by Hemanth Reply #27 and that is why i consider 20 ...

atulrajguru9

Quote from: hemanthtguru on April 20, 2012, 11:18:47 AM
I will post the calculation please give some time,,,,,

We all are eagerly waiting to know the math behind this..

and if it works as you are saying then ... we can upgrade easystar with this motor and fly it for 2+ hours



atulrajguru9

Quote from: hemanthtguru on April 19, 2012, 08:28:21 PM
Sir for which MR did u do the calculation Quad or my new octa
Quote from: hemanthtguru on April 20, 2012, 11:18:47 AM
I will post the calculation please give some time,,,,,

Hemath, Please dont call me sir... I am not senior in this hobby.

I did it for your Quad  as you said in reply # 27 that it draw 20 amps and the link which you gave says motor will take avg 6 amps and battery capacity is given as 2650 (rounded to 2.7A)

hemanthtguru

Oct finally files

http://www.youtube.com/watch?v=73HQhsdzANA&feature=g-upl&context=G203b2cbAUAAAAAAAAAA

I tested it with WK-M

I will test with my INS system soon;

The gains need to be tuned its just first flight
Multirotor Freak

ram singh

sir what is the brand of your six sensor quadrotor contol board and what is the cost
please post the link for control board :headscratch: :headscratch:

hyd_quads

@hemanthguru:
I wonder how I missed this thread.

1) You say the FC is 32-bit. Which CPU is used? STM32?
2) Is the code self-written?
3) Any GUI for configuring various parameters or do you just use those on-board pots?
4) Can you specify the IMU used or the names of the individual sensors?
5) Did you port any open-source multirotor platform like Multiwii onto your code, or is it completely different?
6) Do you plan to retail it? If yes, at what price?
7) Is your product open-source? Can anyone modify the code to their interest/requirement?

Quote from: hemanthtguru on November 26, 2011, 01:15:20 AM
And finally proudly "MADE IN INDIA"
And I must say "GREAT JOB!" I am EXTREMELY proud to see this from INDIA.

Vineet