I have just bought the ArduPilot Mega 2560 Full Kit... plus the Triple Axis Magnetometer HMC5883L. I should have it built over the weekend.. then i'm off to a my mates machine shop, and i'll make the splitter plate for the lower frame onto which i am going to fit the Ardupilot. the magnetometer i'll put on the tail as suggested. I am going to use my X-cell Razor 600E. For those that dont know its around the 50 size nitro heli.
Do i need to buy any other sensors i.e. the Sonar... i can fly a helicopter all day long but this is my first time flying one with stabilisation so any tips would be gratefully appreciated.
If this works well then i am going to try and use it on my x-cell gasser. i can get up to 20 minute flights with this. But i think for the time being a battery 600 is the way to go.
i'll post some pictures when i have it all together.
That looks great robert, like the use of the flybar cage using it as anti rotation link. Solid piece of engineering :)
Thanks, I already have plans to redesign and build a new servo bracket. I can eliminate the carbon fiber plate and make the whole thing stiffer (currently I don't feel the overall mount is stiff enough).
hi christoph, you cannot use channel 6 in parallel. to use gain knob from Tx, u would have to connect the gain of gyro directly into the Rx gain channel which has been assigned to the knob. unlike arduplane where in "manual" mode the some In channel and out channels directly get conected, this does not happens in arduheli. i think the best would be to use channel 6 out of APM since once set the gain doesn't needs to be changed for a stabilized simple flight and set the channel 6 gain through configuration tab of mission planner. as randy explained start with gain min and max values slightly below 1 and 2 respectively. before that assign channel 6 out as gyro gain in mission planner.
i should really read all this thread one day i think i will try a flight this weekend
i just have to work out how to free up a channle on my recever for the auto trim i have a external gyro
and make a mix for the 5 flight modes in my TX for auto, ALT_hold, stablize, and RTL (XBee fitted)
hi philip, this is a 6 postion switch which will give you 6 PWMs. the resistors are already soldered to give evenly spaced PWMs. it is available on ebay through some APM flyer. http://www.ebay.com/itm/Mode-switch-6-POSITION-9X-radio-ArduCopter-...
price though is high, because this switch in india (made in india) is about $0.25 without resistors in place. well necessity is the mother of invention!
thanks for the link
i tryed to fly her today and think i have a vibration problem when i got half head speed the swash tilts farward and right
would it be the Magnetometer or the apm mounting i have to look at?
Definitely the APM. Which code are you running? If you are getting this with 2.5, the heli must be shaking really bad.
i am running 2.53 i may try to to run my pitch curve at 0 deg flat and run the throttle up just to see what happens
FYI guys, the external LED code is just about done, and I'm now working on the ext. throttle governor code. Hopefully I'll have something out by the next major release.
I've just about got the basics of the throttle control working. Should be in the next release I think. At this point it's not a full governor function, it's just APM control of a governor equipped ESC. So the ESC no longer takes it's signal from the Rx, but from the APM on Ch 8. Basically, it will turn on the motor when you arm the system.
Who's got a gov. esc and interested in a function like that?
Did anyone have some luck with good loiter results meanwhile?
I am still playing around putting one parameter after another on CH6 for tuning, but no major breakthrough yet.
What happened to the trad heli guys. Give it up?
After hundreds of flights, still tuning loiter and now also alt_hold. In gusty wind conditions it totally failed. Heli shoot up by 10m or so. But I have the feeling loiter is better in windy conditions.
Here a GPS track. I might come soon to the point where I can put the TX on the ground. Just need another 100 flights. But guess what. I reached a loiter P value of 8 now. hold P, I also went up to recently 2.5