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  • The reason I'm asking is that I started going through DaveC's tuning guide and I'm getting a _very_ high rate_d parameter. In the region of 0.03 - 0.04. It might be because the frame is light and extremely stiff and that it is relatively powerful for such a small 'copter.

    I'd just like to know if this is consistent with what other people are getting on this frame/motor/prop setups. I'll revert to the default parameters for mid-sized 'copters for the maiden flight. I'm sure it will fly great, if a bit sedately, but it is probably a very bad idea to fly with such highly tuned values from the start even if the setup can support it.

    It is interesting that they'd turn down rate_p from defaults rather than up. My intuition says that a smaller/lighter frame (everything else remaining constant) would tend to handle like a smaller frame and hence require a higher rate_p.

  • Forgot, I would not have mind to mount my ECS's upwards, but they are too wide.

  • Played a bit and will be having time this weekend to do some fine tuning.  I got the following settings from Jaco at SteadiDrone:

    Change the Angular Rate Control P from 0.175 to 0.1
    Change the Stabilize Control P from 4.5 to 4.2
    Change the WP Navigation (WP Speed) from 5.0 to 3.0

    Will let you know after the weekend of any changes!

  • Looking good.

    Hi Willie. I've just finished assembling a slightly older 2012 model QU4D. Mine's got the arm end-motor mounts that slot into the carbon tubes, instead of the clamp-on fixtures like yours. I mounted my ESC's upright. I needed a bit of extra space between the body plates because I intentionally left the motor wires too long in case I wanted to change the wire layout in future.

    I'm doing pre-flight checks and tests at the moment with my quad in a simple sling suspended from above. I'm just making double sure everything is straight, nothing is vibrating too much, nothing is loose, getting a feel for how much the hover throttle is - that type of thing.

    I'd be interested to know what PID parameters you've come up with, if you've done any tuning.

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