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looks good, i might pickup a HX9V as a backup to my Nex-5n and a little better than my GoPro 1 and 2...
too many cameras the rubberbands are to keep the landing gear from doing the splits on a hard landing? |
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Gary seem to have bit of pool noodle shake, so by tying them together, it keeps the shakes down. (changes the resonance)
cool video gary. you really got it nicely dialed in. after I take bunch of pics tomorrow with different available combos that will be offered, I will finish setting up mine with naza on the camera mount. then see about tuning it in. |
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Last edited by askman; Feb 26, 2012 at 09:12 PM.
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Not too bad Gary. That looked like active stabilization in the cam, right?
For a fc board to really work right, it has to be mounted to the same plane as the camera. Just like you wouldn't try to fly your quad with the fc on the stabilized camera gimbal, you shouldn't let the fc on the quad control the gimbal. It's basically just guessing from the difference between ad reading and stick position. My fy-20 has full turn pots... ? |
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yes the FY-20 does but 1/2 is one direction and the other 1/2 is the other direction.....
here is my latest attempt. you can see the FC is still giving too much noise to the gimbal..... props are all balanced as well as I can. I am thinking the motor bells need to be balanced... so I might try the laser trick, we shall see. I also might just throw the FY-30a on the gimbal to see what that is like, since this is my temp/test rig anyways
i see the potential, just need to kill the vibes. I am impressed with the NAZA kit and how little vibrations it seems to have. |
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Last edited by Adidas4275; Feb 26, 2012 at 10:12 PM.
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Quote:
Andrey is right. I was getting a weird resonance/vibration from the pool noodles, and these go away with the rubber bands. I think we're going to add a cross brace, to be used with the noodles. -- Gary |
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I do agree, however, that using the platform FC to drive the gimbal is definitely not as effective as using a dedicated gimbal controller. Getting rid of the vibes completely is really, really hard. -- Gary |
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the only problem is the size of the controller.... it will fit on top of the battery mount... so ill get on that.
it will only be temporary as that FC will go into another build shortly. The new gimbal controller is suppose to have a different program installed for controlling the gimbal. |
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-- Gary |
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the Y-6 flys very well.... smooth and not twitchy. The vibration seems to be magnified by the HFPro gimbal stabilization. I have a lot of dampining as it it. Rubber vibration isolating mounts and foam gyro tape..... and like 4 hrs of prop balancing. my FPV camera hot glued to the frame doesnt vibrate this much |
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The thing is, that it doesn't look like normal prop/motor-induced vibrations, which usually show up more as "jello". This looks more like the FC trying to send "corrections" to the servos. I was seeing the same sort of thing with the WK-M, but not anywhere near this bad.
What sort of frame are you using? Is there a lot of flex? Can you grab the motor and twist it more than about 5 degrees? -- Gary |
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My temp rig is rustys frame (aglhobbies) and the boo are fairly tight. I can spin them with some force.
I do agree its not vibrations getting to the camera but rather vibrations getting to the FC and the FC is sending twitchy movements to the servos. I am building 2 RC carbon Y6s that will have less flex and I am doing my best to mount the FC in a way that will isolate any vibrations. I'll get it to work |
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I like Andrey's idea about trying to isolate the motors. This would definitely reduce, if not totally eliminate, the problem of vibes getting to the FC and causing gimbal "corrections". Here's another view of the same gimbal test I did yesterday:
Today, weather permitting (it is very windy at the moment...), I will do a test flight. to see how well this HX9V works in this setup. I think I have the gains about as close as I can get them. -- Gary |
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That's looking quite good Gary. I think that is the best yet. -- JOHN
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