MultiWii

Andy7

To satisfy myself, I took my Quad and laptop outside away from anything metal and recalibrated my MAG. I also checked that the readings were correct and seems fine. I take off to about waist height, and give the YAW a little nudge and it slowly turns both ways. But if I give the YAW a larger input, ...

Andy7

I've got my quad fairly well set up now and it's flying quite well, but I'm having trouble with getting a nice clean YAW. When I attempt to YAW, rather than spinning on the spot, or even ROUGHLY on the spot, it gains or loses altitude and veers off. I can make little YAW corrections when I'm flyign ...

Andy7

Not seeing any data coming through on the gyro in the GUI shots, it's just 0,0,0 whereas you're getting healthy data and a little noise on the other sensors.
Also, the 3D model to the right is showing flipped upside down.

Looks fishy to me.

Andy7

I notice that it flips to different sides each time, so maybe not a bad ESC, motor, prop. The flip looks pretty deliberate on the part of MW so something must be wrong in the config.

Did you try taking off in acro mode to eliminate any levelling errors?

Andy7

Surely if you have a loiter style.mode (as dji, APM and just about everything has) then hitting loiter to bring the multirotor to a stable(ish) hover is enough. From there it is really not too much of an ask for the "pilot" to input yaw the craft into the desired orientation. If the "...

Andy7

I guess the RTNO trigger would interfere with 'pro' flying, so might be worth having this and potentially other helper features on a new mode, or a define in the code.

Andy7

Something to help new flyers learning to get their orientation skills. "Return to nose-out" If you have a MAG, then the orientation is logged when the motors are armed. Flip the yaw quickly to full left or right will return the multi rotor to the initial heading in case you lose your beari...

Andy7

Thanks, will try that.

Andy7

Getting some lovely SKY with my quad now and beginning to get to grips with flying it. http://youtu.be/_0Q5lyJfupk I took it up with my phone duck taped to the front just for fun, but when coming back down I was getting some pretty alarming wobbles. Anyone know what that's caused by and what the fix...

Andy7

Today, I LASER balanced my motors then my props, took my bird out in the garden in the sunshine for a spin and it's PERFECT!!! Got a lot of the vibration out of the system and it's SUPER stable now. I was able to loiter about in ~roughly~ the same place (my skills aren't honed yet) until I'd had eno...

Andy7

Argh: I always get the modes mixed up... I should have said: "ACRO mode is responsive though..." So, yes, I fly in ANGLE (auto-level) mode. I've trimmed Angle mode (land, disarm, throttle 100%, push pitch / roll to click the trim), that gives me the nice initial level flight - it's actuall...

Andy7

Hi waltr, Yes, I keep it totally still during startup. (Flyduino nanowii, fwiw) I've been making sure it's on a good level surface such as a bench when I apply power and let it go through all the calibrations. I get the usual arduino glow-glow-glow then some flickering and then a few seconds of flas...

Andy7

I've been experiencing some odd behaviour from my Quad. I've only just got it working properly, so there might be a few things for me to get right. However I've been at it a while and have been through all the usual MultiWii 101 stuff. It'll take off nicely and hover really nicely with just the odd ...

Andy7

To throw my hat into the ring, make sure you've carefully and properly calibrated the ESCs. This will my my mantra for some time as it totally fixed my horrible drift problem. And to echo everyone else, you need to live and breathe this. It took me 18 months to get my quad right (okay the wife only ...

Andy7

https://farm6.staticflickr.com/5596/14320161461_db68ec759a_z_d.jpg Finally got some REALLY good stable flight today. Looks like my problem was messing up the ESC calibration. Took some increasingly confident baby steps in the warm sunshine after a knock about with my Hubsan. Managed to get it to th...

Andy7

V2 arrived yesterday, it rocks... 'Nuff said!

Andy7

Hah! Yes.

my TX is so basic,mi forgot about the row of inverter switches.
Will give it a spin in the morning, my lipo is recharging on my solar powered rig right now... Yay, green credentials!

Andy7

Wrong forum? ... Hmmm, perhaps.
Right bunch of people to be asking questions about their experiences with quad copters? Definitely!

Thanks for the advice waltr. Think I'll get one, but now my mw quad is behaving, I'm less desperate to get something in the air.

Andy7

I wonder if this is a common mistake, or even a mistake at all. I'd REALLY been struggling with my Quad drifting and simply being horribly unresponsive. So, I decided to start all over with my config and I watched a video of a guy calibrating his ESCs that chagned everything for me. Here's how I use...

Andy7

Thinking about getting a little Hubsan X4 as a fun runaround with my birthday money while I battle with getting my 'proper' quad to work properly. At just under thirty quid it's almost a no brainer if it flies as well as the Amazon reviews say. It want to fly it outside on calm days and some say its...

Andy7

There's. Lot of spinning going on there too.
I found that mine would to that when my motors weren't properly square to the frame, particularly the motor mounts used to rotate on the CF tubes of my talon frame.
That's now nicely fixed and my yaw is all under control.

Andy7

Curious to know why you'd want a beep on arm/disarm.
Isn't the beautiful whirring of motors a dead giveaway that they're armed?

Andy7

Not seeing a video here, or is it just me and my iPad?

Andy7

Nah, it was a mistake. I usually tweak my quad using my laptop but I connected to my desktop and forgot I didn't have the latest version on that. Tried to arm the motors but it just sat there beeping sadly at me. Reset the eeprom re calibrated and put in new settings. Seems to fly a little better an...

Andy7

Argh, just tried setting the PIDs on my quad running mw2.3 with the 2.2 GUI.... didn't like it one bit.

Andy7

That's a beautifully balanced quad, my friend.

To quote Douglas Adams

Hangs in the air exactly the same way as a brick doesn't

.

What hardware are you using?

Andy7

Re your motor mounting screws. Reducing your vibrations is the key to keeping all your screws. But I also put a drop of loctite on all my threads just to be sure. You're always going to get some vibrations, even the changing stresses of your motor pulling in various directions as you fly is going to...

Andy7

Hi, I've been using an MPU6050 for a non-flight project recently and MY GOODNESS but that's one awesome chip! I know I may get a flurry of "well, duh - yeah, it's been supported by MW for ages" but I'm so bowled over by this chip after having used it in my OWN project that I simply HAVE to...

Andy7

A quick question about the NanoWii hardware. (Thy FlyDuino one, Not the HK NanoWii if that's any different). I'm using my spare NanoWii board to do a little Arduino programming and I'm having trouble getting the 'blink' example to work. Compiles and downloads just fine. Is the port that the LED is o...

Andy7

So, I uncommented the line ESC_CALIB_CANNOT_FLY, uploaded, then it beeped, and all the motors started spinning for 2-3 seconds, and then I commented out the ESC_CALIB_CANNOT_FLY and uploaded again. But it still starts at too high speed... if I put the propellers, at soon as the motors start it take...

Andy7

Some nice flying there and some epic crashes!
Thanks for sharing and Happy New Year to you and everyone else, here's to more awesome flying in 2014.

Andy7

I'm with scrat on this one.
That video made me a little nervous. Some of those joggers you were buzzing looked a little uncomfortable.

Good way to get a can of coke thrown at your bird!

Andy7

Curious as to why you want to mount it upside down. It's quite a flat board so you must really have some space constraints there.

It's a very cute little board and so easy to set up. How are you finding it? Did you get to fly yet?

Andy7

That is simply breathtaking!
Thanks for sharing.

Andy7

I see this type of problem if the machine is not perfectly level on power-up +1 I was about to suggest that too. I have been testing my quad recently in the garden which has a small but appreciable slope. I can't test for a while now because grass seed is growing. I'm going to try launching from a ...

Andy7

I'm running mw 2.1 and it is hard mounted so no shift of the board. If the quad's front is facing away from me then it always pitches back and roles left to start with. To correct back pitch it takes some where between 25 and 30 forward stick movements to trim it level. To correct the left role its...

Andy7

ahh, yes, i was mainly referring to the actual flying part in the beginning. i would love to have a nice string setup for a X, cant really be too hard to design... It might work if you tie a piece to each pair of opposing arms. Gonna try some experiments when my busy life allows some play time. Wil...

Andy7

as far as PID cause and affect the wobbles and flying characteristics should be much the same between + and X, right? Ive never flown a + That's true, but he has the string tied to opposite arms and it's rotating about that axis. An X config quad would rotate about an axis 45' to that for pitch and...

Andy7

YNzqTGEl2xQ one of the greatest videos made for this very question, good luck! Good video. Though I think only good if you're flying in + configuration. You'd need some kind of rig to do that if in X mode. Tempted to build something becuse this is a great way to really study the behaviour and elemi...

Andy7

Okay cool. So i have my pitch and roll trimmed to as near as I can get to 1500 using the GUI and I'm getting drift in acro mode still. My ESCs are balanced as are my props and motors. Vibration is pretty good as seen in the GUI too. So where do I go from here to get my quad to stop drifting in acro?...

Andy7

Something that has been troubling me. The FAQ says first trim quad in acro mode just using the trim on transmitter. The trouble is that it's easy for my tx to go out of the range that let's me arm/disarm. Is it enough then to just trim my tx using the GUI to get the pitch and roll to 1500? The troub...

Andy7

Given that LPF is an acronym for low pass filter, I think he's offended by the redundant word 'filter'.
He should come work for the DoP in the uk (Department of pedantry) who are also trying to stamp out the use of the phrase 'NCP Car park'

Andy7

Hang on: RC RATE = 0 ???? D'Oh.... set it to 0.9 and now it's listening to me. Grrr, wish I'd noticed that sooner. Had a brilliant lunch-break actually being able to FLY the thing meaningfully for the first time since I put it together over Christmas. Now to key in those PIDs and trim. Add that one ...

Andy7

Nice landing gear!

I wonder if it might help the centre of gravity a little if the battery was mounted under the quad rather than on top?

Andy7

I've posted a few times about an odd behaviour that I'm having with my Quad since MW2.2. Nobody seems to have much to offer on this problem and I'm thinking that it might just be me. I have a bit more information now if anyone has any idea as to what's causing it. When I slowly throttle up, the moto...

Andy7

Biting the bullet and applying LPF_42 to my MW2.2 build to see if that solves some odd problems.

But which set should I use for NanoWii? ITG3200 or MPU6050? The second one rings a bell.

Thx.

Andy7

I'd say vibrations are okay. I posted some images of my before / after traces from the GUI after balancing the motors. Now... one thing I still have left to try. My flight yesterday was to try to see how my new motor mounts worked (pass) and how the flying experience was after I'd reduced my vibrati...

Andy7

Just ran it again strapped down to a workbench. I think I'm going to dismiss the sudden snap in motor speed when I increase the throttle from zero as simply my idle speed being fairly low and that being the lowest speed that MW wants to run when the throttle gets out of the safe zone. I'm able to re...

Andy7

Would it be possible to turn signatures back on for posts?
Mine has the specs of my bird in it so it saves having to list out my parts when I'm asking questions.

Thanks,

Andy7

I'm still tuning my quad when I get five minutes here and there. My latest test had a lot good going for it. I sorted out my terrible yaw spin with some new sturdy motor mounts that I made. Now at least I know that my props are all at least pointing in the same direction on my go talon frame. I also...

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