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Heavy Lifters
(22-May-2017, 04:30 AM)fftunes Wrote: Oh well then, yeah for mode 1 and mode 4 the profile stick commands are very uncomfortable, that's true...

I memorized the actual functions to change profiles like:
"throttle low, yaw left, and
- roll left => profile 1
- pitch forward => profile 2
- roll right => profile 3"
Just repeat saying the above to yourself until it "sticks" lol Wink

FF, I just tried switching Profiles using the TX and I could not get it to work using any combination of stick settings.

Just to check I am using the correct sequence, to change to profile 3;

Disarm, then Throttle low, Yaw left, roll right, all three controls applied simultaneously?

PS Slo I did a fast edit on that awkward post and got rid of the BOLD text. Very sorry about that.
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The bold text never bothered me KK - all good here. (It was my stupidity that bothered me...shhh) Big Grin
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(22-May-2017, 04:30 AM)fftunes Wrote: Oh well then, yeah for mode 1 and mode 4 the profile stick commands are very uncomfortable, that's true...

I memorized the actual functions to change profiles like:
"throttle low, yaw left, and
- roll left => profile 1
- pitch forward => profile 2
- roll right => profile 3"
Just repeat saying the above to yourself until it "sticks" lol Wink

FF I am assuming that with the configurature plugged into Hero I will see the profile settings change whilst viewing the PID tuning page.

Is this correct?
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(23-May-2017, 02:08 AM)Keyboard Kid Wrote: FF I am assuming that with the configurature plugged into Hero I will see the profile settings change whilst viewing the PID tuning page.

Is this correct?

Yes but configurator display does not automatically update, you will have to click "refresh" to see changes, or change tab and go back.
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Did not see your previous post at first:

(23-May-2017, 01:57 AM)Keyboard Kid Wrote: FF, I just tried switching Profiles using the TX and I could not get it to work using any combination of stick settings.

Just to check I am using the correct sequence, to change to profile 3;

Disarm, then Throttle low, Yaw left, roll right, all three controls applied simultaneously?

Yes, all together. Maybe try holding throttle low/yaw left first, then "add" roll right. Hold them for a bit. The FC should blink 3 times if done right.

I hope all your channels go beyond 1900 and below 1100, this is necessary for stick commands to work (defaults for max_check and min_check).
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(23-May-2017, 05:23 AM)fftunes Wrote: Did not see your previous post at first:


Yes, all together. Maybe try holding throttle low/yaw left first, then "add" roll right. Hold them for a bit. The FC should blink 3 times if done right.

I hope all your channels go beyond 1900 and below 1100, this is necessary for stick commands to work (defaults for max_check and min_check).


FF still no luck and I tried all sorts of combinations.
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Howdy Lads, some interesting news.

I finally had a chance to run the first test run with the PIDs set to zero. (all 3)

I was in my little back yard at home so I was extremely wary and did a 1/3 throttle run on the table to establish that all four motors were tracking and then I set the quad down with ply plate, a bench vice and a big shifting spanner sitting on the skids as a load. All up weight  of the load being 2.241kg

The quad with one steel and 2 aluminium runners weighed in at 4.00kg exactly.

Thus I had an all up weight of 6.241kg.

I am still running on a mismash of props, 1 12 x 5 Aero, 1 12 x 6 SF APC, 1 APC 13 x 5.5 E and 1 13 x 5.5 EP, with my new props due to arrive on Friday. (13 x 4.7SF) The revs stayed within 100rpm up until 2,900 RPM despite the fact I am running different props but that was only at 1/3 throttle. I did not push that test too far as I did not feel comfortable reaching under the props to opto tach the RPM.

Sooo.... With extreme trepidation and the quad on my little lawn, I began to advance the throttle, higher, higher 1/2, 2/3 and then at about 7/8 throttle the thing lifted one end off the ground. Stunned, I just dropped the throttle immediately and sat back to get my breath. I just had the load plonked anywhere on the ply plate with no consideration of the CG location as I did not expect to lift that load.

So now I will go back and very carefully start to add the steel skids one at a time and get a feel for 5.6kg. After that I will have to wait until my new props arrive and see what that brings.

Believe me it was a very different sounding beast to the old Wooden It.

Actually it reminded me of the sound with the HK FC which I had installed when I first flew Wooden It.

Now, what lesson is to be learned from this event? Does it mean that I learn to fly with the absolute minimum PID settings? It certainly looks that way at the moment.

However the next step after the new props arrive is to re-install the HK FC and see how that handles.

I have purchased a programmer for that FC and I hope to convert it from "+" to "X" configuration

At which point I will see where the wind takes me and choose between one of those two or even a completely different FC.

Soooo.... stand by for further bulletins.
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(23-May-2017, 07:25 AM)Keyboard Kid Wrote: FF still no luck and I tried all sorts of combinations.

Did you check your channel ranges? All channels must start at 1000 and go all the way up to 2000.
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(23-May-2017, 07:32 AM)Keyboard Kid Wrote: ...
Now, what lesson is to be learned from this event? Does it mean that I learn to fly with the absolute minimum PID settings? It certainly looks that way at the moment.
...

NO!

It won't fly with PIDs at zero. If you tried to fly it (once you have all four motors fitted with 13 x 4.7 props) with the PIDs all at zero, it will simply crash and probably break your new, expensive propellers.
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  • Keyboard Kid
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(23-May-2017, 07:36 AM)unseen Wrote: Did you check your channel ranges? All channels must start at 1000 and go all the way up to 2000.

Yes.
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(23-May-2017, 07:42 AM)unseen Wrote: NO!

It won't fly with PIDs at zero. If you tried to fly it (once you have all four motors fitted with 13 x 4.7 props) with the PIDs all at zero, it will simply crash and probably break your new, expensive propellers.

FF, you are so right.

I am just lifting it clear of the ground and it is impossible to keep level.

I also changed the 12 x 5 Aero prop to a 12 x 6E APC and that gives better thrust.

I am now lifting 5.8kg clear of the ground, so I am looking forward to my new props arriving.

What do you suggest now?

My inclination is to gradually creep the PIDs up never exceeding 30cm from the ground and see what happens as a result.

Regards,

KK
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By all means start to gently increase P until you start to see oscillations. Then drop it back to 2/3 of that value.

You might need to be a bit higher than 30cm to get out of your own prop wash though.
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(23-May-2017, 07:36 AM)unseen Wrote: Did you check your channel ranges? All channels must start at 1000 and go all the way up to 2000.

Unseen, on my set-up Profile 2 = YL + PD + TL.

I have not been able to work out the combo for Profile 1 and 3 yet.

(23-May-2017, 09:57 AM)unseen Wrote: By all means start to gently increase P until you start to see oscillations. Then drop it back to 2/3 of that value.

You might need to be a bit higher than 30cm to get out of your own prop wash though.

OK Unseen, gently does it all the way. I have no desire to smash my house windows or incur the wrath of She who must be obeyed!
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  • Tom BD Bad
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(23-May-2017, 07:36 AM)unseen Wrote: Did you check your channel ranges? All channels must start at 1000 and go all the way up to 2000.

Unseen, I managed to change Profiles 1 and 3 to Profile 2 by using YL + PF + T (Low) and it changed the screen without refresh. I cannot seem to be able to change P2 to P1 or P3 and I have tried all manner of combinations. There does appear to be some sort of time delay in changing to P2 so it could be there is a longer delay for the others. I will try again tomorrow. However I can select any profile manually and fly that way.
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(23-May-2017, 02:45 PM)Keyboard Kid Wrote: Unseen, I managed to change Profiles 1 and 3 to Profile 2 by using YL + PF + T (Low) and it changed the screen without refresh. I cannot seem to be able to change P2 to P1 or P3 and I have tried all manner of combinations. There does appear to be some sort of time delay in changing to P2 so it could be there is a longer delay for the others. I will try again tomorrow. However I can select any profile manually and fly that way.

That's good although the delay worries me...

In the configurator, it should show the current CPU Load at the bottom of the screen when you are connected to the flight controller. If that regularly shows more than about 50% then it would explain the delay. It also means that you need to turn some features off or change the configuration to lower the CPU load.

Unfortunately, your flight controller is based on the older F1 version of the STM32 microcontroller. It doesn't really have the horsepower to run the latest releases of Betaflight and Cleanflight, especially when using the accelerometer.
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