Fly to your Perfect Tune - Flight Review

In this video, we review the flight from the "How to fly to your "PERFECT" Tune" video ( • How to Fly to your "PE... ), to see what is good \ bad and talk about settings changes to make it better!
Table of Contents:
03:02 - Stepped Throttle Punch
05:10 - Full Rate Moves
11:14 - Half Rate "twitch" Moves (roll and pitch -- thrust vectors)
13:52 - Yaw Half Rate "twitch" Moves (yaw "thrust" is based on inertia)
15:45 - Throbbles (throttle punches)
18:00 - Throttle Chop Drift
19:31 - Prop Wash
22:40 - Smooth Flight
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24:18 - Changes based on Observations
PID Tuning Guide - tiny.cc/pidtuning
How to fly to your "PERFECT" Tune video - • How to Fly to your "PE...
PID Tuning Principal Playlist - • PID Tuning Principles
PID Tuning 101 video - • BlackBox: Trace Import...
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Want to support me? / uavtech
or buy a beer: paypal.me/pool...
NEED HELP?!?
Betaflight BlackBox Log Review Group: / 291745494678694
UAV Tech Discord: discordapp.com...
Facebook: UAVTech1

[@PIDtoolbox]

Great video Mark! I hope you keep posting stuff on the fundamentals like this! It never gets olds and is always super valuable!

[@Mateyhv1]

Very nice tunning example, HD video helps a lot. I know you have covered it several times including in the tunning guide, but would be nice to have a recap video of what you turn off when you start tunning the PID. I mean all those post PID modifiers like antigravity, throttle cutoff and so on, so as to have the bare PID loop as a starting point for a tune. Thanks Mark!

[@zachspross1084]

One of your best videos yet. It kind of sums up the other 45 videos I’ve been watching on repeat all in one video and thankfully on 4.2! I really love your content and you’ve helped me so much in perfecting my tunes. They’re still not perfect, but I’m getting closer! Lol

[@kelvinguan4201]

Every single one of your video I learned something. Super helpful on the FF and what level it should be and the settings helps out propwash. Time to dial in my 3 inches tune.

[@MouwDown]

Uav Tech, really appreciate your thoughts and descriptions when tuning. I enjoy your pid tuning videos very much and always link them for people with questions. Thanks for you taking the time.

[@zoltangremsperger5361]

these are the most useful videos for an FPV pilot, big THX mate! 👍

[@littlephilo585]

You are really helping me to wrap my brain around the tuning aspect of this hobby. I have a little mini quad i built and just small adjustments make significant differences in how it performs. Before it got all wonky on me after a roll but i see now that its just a tuning problem. I was shooting myself in the foot for flying it so long the way it was. I would really like to see what its like to fly one of your machines just to see what im trying to work towards. I'm just a big dummy in all this but trying !! Are you one of the developers because you seem to know alot about it. Im sure glad i found you and that you are taking the time to lay all this out. Not everyone is that thoughtfull . Thank you very much !!!

[@uavtech]

Not a coder, but i work with the devs on ideas and testing new code.

[@AgustinMolini]

Love this analysis video this is super helpful for me. Blackbox is such a daunting thing right now.

[@vaughnd]

Dynamic idle is really helping keep hangtime while pushing dshot idle value up for propwash/dive stability.

[@bmw-upgradech1665]

I agree on that! ​@UCI2MZOaHJFMAmW5ni7vuAQg would you say setting higher dshot idle, like 6.5 for better prop wash and than -30% rpm on dynamic idle make sense to help with prop wash and save that hang time? ​​

[@ALL4FPV]

Such useful! It would be much more useful to see how the log is with purely default and how you go from default to your perfect tuning....

[@uavtech]

I can do a video with this rig on defaults.

[@heartpilotOB]

@@uavtech been wracking my brain(s) out with your videos, nosebleed all over :->, I do try to understand more. My problem is I'm flying micros(?) 2-2.5" quads running on F4 FC with no onboard blackbox capability, can you do a video as well from defaults to "manual" tuning or some magic of yours ;->. Thanks and more power.

[@beautoxfpv663]

Thanks for very useful video. My quads fly just amazing since I learned how to tune from you, but this makes me want to fine tune some more.

[@fpvpf]

Great video.Thanks Mark

[@mr.m.4887]

Thanks, Mark, another great video about blackbox fine tuning. But I'm wondering if / how it is possible to get close to a at least good tune by using the PID sliders. That would be very interesting especially for beginners.

[@checkeredflagfilms]

I admire your expertise and the amount of time and effort put into the analysis. I do gain insight into various aspects of flight, I've subbed and appreciate but to be honest, unlikely to geek-out at this level. imo if I like the basic feel of the quad, I'm more likely to be happy. I'm probably missing out on the nuances of flight control, no question. However, my tweaking or analysis at this level is not happening. Keep up the good work.

[@uavtech]

But hopefully folks can see how they can look at video and logging to get their "perfect" tune.

[@checkeredflagfilms]

@@uavtech without question

[@uavtech]

I have something more basic coming: problem --> solution type. But each problem will show multiple solutions and logging is the only way to see which is right. Or just try each one, one at a time.

[@uavtech]

That is typically an issue of motor saturation somewhere OR PD gain just needs to be higher on the wobbling axis. Can address.

[@yeahboyd5371]

Thanks for the video!

[@pippifpv]

With ff of 250 I experienced the gyro moving quicker than I moved the stick. So in a quick 360 roll, the quad would hit 606 degrees(my full stick rates) even before I would hit it. And with some overshoot when I centered stick again. Is that too much ff? Bf 4.1 Also, gyro wouldn't follow stick, rather it almost looks like stick is trying to follow gyro or stick is tracking behind gyro. I did find the p-d balance first, like your tuning guide. Like an initial D-term kick being too high, making initial rotation too fast

[@uavtech]

Yes, that is a sign of FF being too high. In that case, P-term is opposing the motion (inversed).

[@pippifpv]

@@uavtech cool. Thanks.

[@ktmjay9920]

Great video 👌 really helpful thank you!

[@azfpv5967]

As usual good tuning video with lots of helpful tips. Quick question now I didn't see that you were using d min, was there a reason for not using itif you explained in the video I guess I missed it my apologies

[@uavtech]

I don't get overshoot with higher FF values in 4.2 with this rig, so didn't need to activate. I have not played with it yet on helping with wash on this thing. I'm thinking it won't since D=45 seems to start to saturate the motors already in wash conditions.

[@D33MUS_ky1]

Hi Mark. Enjoying your tuning videos thus far, they have helped me better understand how to use blackbox which is something I struggled with in the past. I recently resurrected a quad to fly during the times when we are on "soft curfew". I have updated from 3.5 to 4.1.5 and I have it flying to where it feels nice and to what I'm used to. However, there are still some tweaks needed and I'm sort of lost as to what else to do. How would I go about getting you to take a look at a log?

[@uavtech]

Msg me on FB.

[@lemoncfpv8434]

great info! thanks

[@serval_fpv]

You're intro should be " you're going to learn a ton of sh!t today " ( end joshua smirk )

[@Fleche_FPV]

Thanks ! One more time !

[@MojoPapiFPV]

Wish you could ship this perfect tune to someone like Vanover who could describe what he feels and what he would like to change to see where the gap is between a perfect tune and a top pilots need for feel and response. Conversely, it would be interesting to have him tune the quad to his own "perfection" and then have you look at the blackbox and analyze the delta between what is textbook perfect to his pilot-feel perfect. Hope this makes sense.

[@uavtech]

It would be entertaining, but what does perception mater when PID Error (the gap between the sticks and quad movement) is narrowed to as little as possible? At the point, the Gyro is matching Setpoint, the quad is moving EXACTLY how you are commanding it to move. Then, if you want a different feel, CHANGE YOUR RATES!.

[@MojoPapiFPV]

@@uavtech I think it's important because it may be one of those things thats an open shut case and a top pilot says, yup this behaves exactly how I would want (after setting and tweaking rates). But maybe it's one of those things where the textbook data says one thing but there may be some other X factor that *maybe* someone like a Vanover would be able to put into words. That's why I would love to see some sort of collaboration there. This may not be a great example but there is someone in the community who considered themselves the tuning master and even did presentations and "courses" but then you would see them fly and clearly, the tune and the flying were sub par. In a way it's an attempt to connect the engineer to the artist/pilot who may not understand all the technical code and filter and blackbox information but can talk about why maybe the textbook tune may not be desirable from their perspective.

[@uavtech]

What if you give to each pilot on DRL and they have a different opinions? Bottom lines is, you know what they say: "Opinions are like a$$holes. Everyone has one." In the end, a well tuned machine is one that has the least amount of PID Error. That is objectively true; hands down. Could a pilot like a little more slop, sure he could. And if you do, have at it. I'm just trying to show the fundamental here so folks hopefully know how things work and tune however their heart desires. But if you tune to add in slop, there are side effects for sure.

[@MojoPapiFPV]

@@uavtech I get that and its true. We've already seen that in various videos. Maybe another way to say it is, it would be interesting to have someone who has demonstrated themselves to be at the top of their game at both racing and freestyle flying, someone who can tune their own quad on any firmware by feel to what most would say perfection by seeing the HD footage, take a quad tuned to a perfect blackbox log and talk about what feels different to them. What they like about it, what they don't. The world isn't just about data. Perception is also immensely important, as are opinions because they combine both. Maybe I'm not expressing this correctly and certainly by no means am I saying that there isn't enormous value in what you're doing. The reason I watch and subscribe is precisely because I know you know what you're talking about and how you get to your results. But I also enjoy when those sorts of minds, meet a different kind of mind. Like a good podcast, it makes for an interesting conversation and you never know what little nuggets of gold are born from those interactions.

[@cwtim]

I see the P in the opposite direction on my gyro trace a lot and also some D sometimes. Does it mean to lower both P and D a lot? (now P 60-50 on roll and pitch). And the D are somewhere around 38-40. I saw your other video about the weight to thrust ratio with bigger quads, maybe that is a little bad on my 5inch quad too, it is 750gr with the battery ad GP. But I do not dear to go higher with the P and D (older JB videos) and when I lower it seems to fly wobbly. Filtering seems to be working very good and lowered it a lot with the sliders. But my quad always flies bad with much Jello, and seeing your clean gyro traces, i'm still not too sure what to change about the tune, in the way I see what you explain, but it is not clear what to change to counter.

[@cwtim]

Oh I see your Whoop/quad 101 video now and I will try to play with the P/D ratio settings trying to get it better :D Great videos!

[@uavtech]

👍

[@QSpeedRacer]

So I should should pids before feedforward.. notice easily on log the delay .. Cinepro 4k advance

[@uavtech]

Yes.

[@edouardmalot51]

Mark, thanks again for your content. Could you explain why did you disable Dmin ? (Or I missed it)

[@uavtech]

I don't get overshoot with higher FF values in 4.2 with this rig, so didn't need to activate. I have not played with it yet on helping with wash on this thing. I'm thinking it won't since D=45 seems to start to saturate the motors already in wash conditions.

[@heggy_fpv]

thanks. why is I active all the time in a smooth forward flight?

[@uavtech]

The main purpose of I-term. To offset differences in weight distribution with being leaning forward.

[@davegoddard]

Great video. Thanks!!! I have some thoughts on these principals. I’ll send something through messenger in a few days. I have been working a racing tune that just needs 1 more session before I’m gonna be happy.

[@jotaprende]

On racing a lot of parts are frequently replaced. Do you need to adjust the PID in every replace? Or just maintain the same specs?

[@mike216ism]

I have my filter Sliders at 2X normal. It's amazing until it's windy. Wind is hard to tune for so I'm wondering if lowering my filter Sliders could help in windy conditions?

[@uavtech]

Getting your PD Balance and PD Gain strength (like you need for the best prop wash control) is the best chances you have for wind control as well.

[@mike216ism]

@@uavtech okay, I'm going off pid tuning notes from 4.1 still. I don't think much has changed from the numbers besides the way there handled. 4.2 is incredible. It just Flys better and sounds better giving all things equal from 4.1 to 4.2. I have a 350 gram raging droner. That's all weight besides 6s 1050 r-line batteries. I usually drop the master slider down 2 to lower I gain and raise the FF and P and D gain back up 2. Basically like using the Sliders to keep everything proportional. What's your thoughts if you were tuning a light powerful machine

[@mike216ism]

So my 350gram guard seems to do best at . 8 pid master controller back up to 1.0 pid master slider and FF values. Dropping I values and pid from default seems to do the best. Thanks again for your help and time. I'm sure thousands of post everyday demands too much time

[@cementkidd]

Hey bud. Quick question, how exactly do you overlay the blackbox and flight footage together? Can i simply upload the footage right into bbe?

[@cementkidd]

aaa i see you explained it right around the 2 minute mark. disregard that question. excellent video bud as always. thank you

[@ehunter2010ed]

I turned on expert mode & moved the filter sliders all the way right!! Now I notice at lower to mid cruising throttle I get bobbles & mid throttle oscillation!! Is this to be expected?? Or is that not what causing the bobbles??

[@uavtech]

To be expected to some degree. You need more filtering for your quad. Bring back left.

[@tehllama42]

That can happen - odds are bringing the D-Term filter to the left will give you the best results there (but also depends on what DMin value you're running), often the gyro filter can stay slammed to the right

[@ehunter2010ed]

@@tehllama42 thx

[@ehunter2010ed]

@@uavtech thx

[@Tim-Shows]

@UAV Tech Can you provide your rates?

[@uavtech]

Classic it is, 1.3 Rate 0.76 Super 0.3 Expo

[@Tim-Shows]

@@uavtech BTW, this video was SO helpful. It really brought your other videos together and explained how to use BB to get a great tune, step by step. Yesterday, after the video I finally got my 5'' 6S rig flying awesome. I had your traces, PDF, and 2 videos up to complete. Looking forward to your BF4.2 videos to come. Thanks again!

[@Maorifpv]

I use 0 FF any problem with that? I dont really like the feeling of FF and i feel i got more control with it off

[@uavtech]

No problem at all.

[@Maorifpv]

@@uavtech btw, Do you know when the official version of opentx with crsfShot will come out?

[@CgitEinsteins]

Penjelasannya mantab bro. Setidaknya minimal gua tau fungsi dan ke arah mana yg lebih bagus. Lanjutkan.

[@Tim-Shows]

Would you suggest to go through this same process for BF 4.2?

[@uavtech]

Not if carrying over a tune from 4.1

[@Tim-Shows]

@@uavtech When I read the new BF tuning guide it says to use these defaults, but none of them work as good as I had it locked in with 4.1. However, I did remove a GoPro so it may handle differently. If I started all over, would your guide apply to 4.2? For example, could I start with filtering, go to P/D Balance, then FF and advanced options? I could then add the newest features to BF 4.2 after all of that tuning. Do you agree with this strategy?

[@jmcinematics]

I have got some shakes on forward flight (7 inch) Suggestions to smooth this some?

[@smooth_ops2942]

Raise D MIN some and see what that does and if it doesn't change it to much turn D MIN off by putting everything to 0. 7 inch setups are really tricky to tune so good luck, also what props are you using?

[@uavtech]

Good advice! Big question is props?

[@peacequest69]

@@uavtech I have with every 3 blades propeller, a bit less with HQ7x3.5x3 and less with Gemfan 7x4.2x2 ( 2208 1700KV 6S ) Looks like is propeller's weigh dependent ( weak motors ! )

[@bmw-upgradech1665]

can not find were to download your BB templets :( can some one give a link?

[@uavtech]

tiny.cc/uavtech --> BBE Templates folder. JSON file. Open and press number keys (above letters) on keyboard.

[@bmw-upgradech1665]

@@uavtech cheers downloaded latest version in there 3.5 cheers

[@blbyfeq1546]

Just show how it flyes with sound , on 1 battery , without any cuts. Let us see your best tune in real flight.