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« on: December 06, 2014, 01:29:25 AM »
kushagrgoyal
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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,
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Hunter mini h quad help
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« Reply #1 on: December 06, 2014, 01:45:23 AM »
akhilzid
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First of all, did you calibrated esc and accelerometer ?
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« Reply #2 on: December 06, 2014, 01:47:27 AM »
kushagrgoyal
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yes, i calibrated both.
self level is off. all channels are in proper direction and sub trims are zero.
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« Reply #3 on: December 06, 2014, 01:56:37 AM »
akhilzid
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and please confirm that values of the censors changing while tilting.
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« Reply #4 on: December 06, 2014, 01:58:20 AM »
kushagrgoyal
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yes they are.
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« Reply #5 on: December 06, 2014, 02:09:28 AM »
kushagrgoyal
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the quad has a battery on the back so it is back heavy but it shouldnt matter..
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« Reply #6 on: December 06, 2014, 02:11:07 AM »
akhilzid
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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.
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« Reply #7 on: December 06, 2014, 02:12:22 AM »
kushagrgoyal
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thats the rear of the quad...on the front is the reciever nd camera...
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« Reply #8 on: December 06, 2014, 02:12:57 AM »
kushagrgoyal
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cg is definitely not in the center. it is back heavy, nd no place to move components...
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« Reply #9 on: December 06, 2014, 02:15:11 AM »
akhilzid
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sorry about the front/back, the heavy side should respond slower and light weight side should respond faster thats what i meant.
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« Reply #10 on: December 06, 2014, 02:20:38 AM »
akhilzid
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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.
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« Reply #11 on: December 06, 2014, 02:29:46 AM »
kushagrgoyal
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should i increase forward trim to compensate nd then just fly it when it is stable...??
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« Reply #12 on: December 06, 2014, 02:32:25 AM »
akhilzid
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that will increase strain for the motors in heavier side
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« Reply #13 on: December 06, 2014, 02:35:52 AM »
kushagrgoyal
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so wat should i do..??
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« Reply #14 on: December 06, 2014, 02:38:53 AM »
akhilzid
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move the FC to center between top and bottom plates and move battery to center of top plate will give you better CG.
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« Reply #15 on: December 06, 2014, 02:47:27 AM »
kushagrgoyal
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it actually helped a lot.... thanks.
also, it is actually very sensitive, should i reduce stick scaling or change PID??
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« Reply #16 on: December 06, 2014, 03:00:21 AM »
akhilzid
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stick scaling will help to change rx sensitivity,  and optimum PID need for Stability.
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« Reply #17 on: December 06, 2014, 10:42:05 AM »
sundaram
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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.
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« Reply #18 on: December 06, 2014, 12:10:55 PM »
kushagrgoyal
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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..
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« Reply #19 on: December 06, 2014, 12:17:33 PM »
sooraj.palakkad
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SPN
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.
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« Reply #20 on: December 06, 2014, 03:25:57 PM »
kushagrgoyal
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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??
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« Reply #21 on: December 06, 2014, 03:58:06 PM »
sooraj.palakkad
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NO, that's no recommended.
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« Reply #22 on: December 06, 2014, 04:00:26 PM »
kushagrgoyal
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ok...then i gues i will just wait for new props...
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« Reply #23 on: December 06, 2014, 04:17:41 PM »
akhilzid
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Quote from: kushagrgoyal on December 06, 2014, 04:00:26 PM
ok...then i gues i will just wait for new props...
That's better Else you should order more props(may be new frame too)
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« Reply #24 on: December 06, 2014, 11:36:38 PM »
kushagrgoyal
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ok...
also, this is my first multirotor. I've flown a small Hubsan X4, so what should i be cautious about??
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