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| Frame wobble with roll inputs https://www.spirit-system.com/phpBB3/viewtopic.php?f=20&t=885 |
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| Author: | jimsair [ Sun 13. Sep 2015 19:25:47 ] |
| Post subject: | Frame wobble with roll inputs |
Hi Zex. I was hoping to get your help with a small issue. I'm using a Spirit on my Minicopter Diabolo. It is flying exceptionally well, but in a stable hover I see a brief wobble in the skids after a quick roll input. I don't see the wobble after a pitch input (at least not as noticeable). I've tried lowering my cyclic gain from 65 down to 60-55-50 with no change. I'm flying with Cyclone 716 blades at 1660 head speed. CFF is 9, FS is 1, and rotation rate is 9. I'm using mks x8 servos at 7.5 volts. Any idea what may be causing this? Thank you, Jim |
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| Author: | ZeXx86 [ Mon 14. Sep 2015 8:07:05 ] |
| Post subject: | Re: Frame wobble with roll inputs |
Hi Is there possibility to try harder head dampeners? You can try to decrease Cyclic Feed Forward, this should help (not less than 3). Your CFF is quite high, which is most probably reason for this. If you want faster reactions you will need to update other parameters to make it work correctly. Can you tell me what is your value of Geometry 6° and how far are ball linkages on the cyclic servo arms in mm? |
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