I just completed the build of mini h quad from quadkopters.com.

My quad is just lifting up from the front nd flipping over...Also I m not sure about the PID settiings. woudl really appreciate some help with these settings...

thanks,

First of all, did you calibrated esc and accelerometer ?

yes, i calibrated both.
self level is off. all channels are in proper direction and sub trims are zero.

and please confirm that values of the censors changing while tilting.

yes they are.

the quad has a battery on the back so it is back heavy but it shouldnt matter..

are you sure that the CG of your quad is in center?, pic shows that the battery is in front side so weight is littlebit heavy in front side.

thats the rear of the quad...on the front is the reciever nd camera...

cg is definitely not in the center. it is back heavy, nd no place to move components...

sorry about the front/back, the heavy side should respond slower and light weight side should respond faster thats what i meant.

switch autolevel on may help to balance CG issue. but not recommended because motors in heavier side need to work more to balance.

better to try occupy battery/FC between the plates.

should i increase forward trim to compensate nd then just fly it when it is stable...??

that will increase strain for the motors in heavier side

so wat should i do..??

move the FC to center between top and bottom plates and move battery to center of top plate will give you better CG.

it actually helped a lot.... thanks.
also, it is actually very sensitive, should i reduce stick scaling or change PID??

stick scaling will help to change rx sensitivity,  and optimum PID need for Stability.

You need to balance the Quad for sure before you can attempt to tweak the Pids or the trim the radio to get the mid values on the LCD.

If your quad is CG balanced and the radio trimmed to get the mid values on the LCD Then your Quad will respond accurately to the Changes in PID else you are just multiplying errors as a beginner.

You can definitely Trim, PID tune and Set an CG unbalanced Quad to fly well but as a beginner I would not recommend that for now.

I've moved my batter to the below the quad, the cg is now in the middle...
and i found some very stable settings on a video but i need to reduce stick scaling to reduce quick movements..

in KK2 your stick scaling should be b/w -100 to -90 (min. value) to +90 to +100(max. value) for all channels except throttle.
for throttle, is best left at +90 max.

you can use expo on your channels, to decrease the response near middle stick, and retain the response on stick ends for acro flying.

i broke my props....the new ones will be here in a couple of days.
meanwhile i have one pair 3 blade nd one pair 2 blade props...can i put them together??? anything bad that can happen becoz of this??

NO, that's no recommended.

ok...then i gues i will just wait for new props...

Quote from: kushagrgoyal on December 06, 2014, 04:00:26 PMok...then i gues i will just wait for new props...

That's better Else you should order more props(may be new frame too)

ok...
also, this is my first multirotor. I've flown a small Hubsan X4, so what should i be cautious about??