Does FRC.. Stand for Fiber re-enforced Composite ? ... I actually wanted to know what it means

Yes sir FRC is Fiber Reinforced Sheet. The Sheet is fire-retardant unlike the normal fiber sheets which gets charred when exposed to flame.

Made the Landing Gear with the left over aluminium piece. The clamps have been cut off from the FRC board that was remaining after cutting out the Center plates. Here are some pics




After joining the Landing Gear to the Copter Frame




Now the total weight of the copter is 1.6 kg with the battery and the target to finish the copter with a weight less or equal to 1.8kg looks achievable! 

Things left to do:
1)Make the FC
2)Add the DIY RGB light which changes colour depending on the stick inputs!

Thanks Mr. Roy, May I know what is it called in lay man's language, and what is FRC usually used for ?
Regards

Sir the one that I use here is called a Copper Clad FRC board. Normally this board is used to make custom PCB boards. I am not sure what FRC is generally used for in RC its pretty useful!

Mounted all electronics. The first flight will be with KK 2.1.5, after that I would put the DIY FC


DIY FC

Currently I ran into an issue: The copter keeps on rotating before take off
Here's the post: http://www.rcindia.org/multirotors/tricopter-problem/msg230225/#new
If you know any solution please do post on the link! Thank you! 

nice craftsmanship..... liked the FC PCB and design.... you can call it scorpion also.... it resembles a lot.... mount the tail motor a little higher to replicate sting....

Thank you rastsaurabh sir. Will try to make a scorpion sting using the left over FRC. Thank you for the idea

did you solve the rotation ?
this is because the gyro is reversed .
normally the motor tilt should be into the yaw i.e if you move tail right then motor
should also tilt right.

on the other hand if you give right stick input then motor should tilt left
i.e opposite to your stick direction.

Thank you Saikat Sir for the reply!
Sir I solved my problem
what I did was changed the frequency to low and in the mixer option in kk2.1.5 i changed the rudder value on ch4 from 100 to -100.
Now what is left is PID tuning

The DIY FC had some design error. By mistake i switched the SDA and SCL line causing errors. But now it has been fixed and the only thing left is the lighting system.
And if the weather god favours me the maiden will be done this week! 

Flew it today but the tail motor was behaving strangely. The motor was sometimes spinning faster than the other 4 and sometimes slower.
I recalibrated the throttle endpoints of the motors and it seemed the problem was gone. But after few minutes of flying the ESC produced the magic smoke mid-air causing the copter to crash.
The redundancy of the copter was proved valid today when one of the prop from the front motor flew off(I did not tighten it much  ) but still it kept on flying!

The burnt ESC

The flying video will be posted! 

The copter was flown on stock PID values..flew well but requires bit more of tuning

Better flying video after tuning!
It was quite windy today(You can see the copter is always tilted forward to maintain it position) but was able to get a good video!

Nice.

Thank you sir! 

nice built.

At 0:21, an aeroplane is flying above. Where are you flying?

Thank you Piyush. Yes its an aeroplane flying at a height of near 3000-4000 feet(Or even higher) There is a huge grass ground in koperkhairane(where I stay) which is used by joggers. Previously it was a dumping ground for the local civic body for 15 years. The airport is nearly 30-40km away from the place..and normal is windy throughout the day so flying high is quite difficult.

Aerial Video with the DragonFly Copter

nice! looks really stable! whats that thingy in the frame?

 on a side note, love the jello <3     

It says fs so it can be the rx (flysky)

Haha aniket the jello... I just strapped my phone on to the copter with zip ties..
And yes it is the flysky 9x receiver.

My copter wanted to be a pole hugger and see here's the result