[lrweber]

Thanks Dave.  Actually I have my TX set up with 6 flight modes for an APM7 drone.  And I have an old TX that works OK on a HK450 with a flybar and tail gyro.  But am having trouble figuring out how to add the CC3D Atom to my helicopter. Hope that someone with similar equipment will give me the hint that makes it all fit together.  Lynn, Austin

[JamesPal]

EDIT: Please disregard this question. I have figured out I skipped the swash plate leveling procedure. That sets the servo travel, min and max. Skipping this step will leave your travel setting at zero.

Dave, I'm following along, your instructions are good. THX for putting them together. Everything seems to be OK until I get to the outputs. I'm using a Turnigy 9XR PRO with the OrangeRX module and RX. It is TAER. I have the HK250 with the HK FBL.

I have followed your directions and it makes sense to me. Thank you for that. I have setup from scratch twice and used your .uav file and I'm arriving at the same results. The problem is the servos and speed control do not respond the TX, but they do respond to the gyro/accelerometers.

I don’t understand this:
…I go to the Configuration, Output, Bank Channels and set this:  1(1-3) 330Hz PWM, 2(4) 330Hz PWM, 3(4,7-8) 50Hz PWM.  Then in the Min and Max I set Chan 1,2,3 at (Min: 1450, Max: 1550), 4 at (Min: 700, Max: 800), 5 at (Min: 1200, Max: 1300).  Once this is done, I hit save…
Why are you limiting the usec like that?

I’m using Turnigy TGY-213C servos on the swash plate. They are 1520/330 Mhz 900us – 2100us. The tail servo is a Futaba S3153, I’m not entirely sure about the frequency, but I have read the counter clockwise/pulse traveling is 1520-1900usec and the 45 Deg. one side pulse traveling is 400usec. It is a 60 degree servo so I think it is a 1000 to 2000us servo.

I was able to get some control movement out of your .uav file, but the controls were incorrect. By the time I got it edited none of the controls worked. I a bit lost, any idea?
THX- JimP

[daveapplemotors]

G'Morning Jim,

You are welcome. I hope you fly soon.

My guess is that you lost cyclic control after spending time in Config / Vehicle / Basic Settings or Swash Leveling The servos still react to heli movement but not to the sticks on your TX, right?

I recommend small servo numbers to start with so that you don't damage something especially in the Swash Leveling routine. If you use that routine you must do a 'Jerry save*' otherwise you lose all servos.

If the right servo went 2100 all the way up and the left servo went 1000 all the way down you might damage something. To start try these: 1300, 1522, 1700 for cyclics, and use 1000, 1522, and 2000 for throttle and pitch. When you get cyclic movement with conservative numbers be sure the servos all go the same direction. Reverse a servo by swapping min and max in either System /  Settings /Actuator Settings-- Channel Max, Channel Min OR Config / Output . Once you have servo directions correct edit those numbers until you are happy with swash level min. neu. and max. Test them live in Config / Output.

Oh, and be careful with servo frequencies! If the ESC or any servo gets warm lower the frequency. I have ruined a few parts with incorrect frequencies. My poor human brain can't got faster that 50 cycles / second anyway, now, although I am sure I was faster when I was young;)

*Jerry save= After Vehicle / Swash Leveling routine save first with "3 servos 140 degrees" and then again with "3 servos 120 degrees".

[lrweber]

Dave, think I am getting closer.  Went back and changed my radio to 1 servo heli and reconnected my Atom inputs to match receiver outputs.  My throttle is channel 3.  Now looking for a .UAV file for a HK450 as a starting point.  Found several for 250s in the "post uav file here" section but nothing for a 450.  I see several references to Baseline UAV files in YouTube but no link to actual files.  I am running a Taurus 9x radio to control a HK450 FBL conversion.  Don't want to wipe it out on the first flight.  Can you point me in the right direction?  Thanks, Lynn, Austin

[daveapplemotors]

Try a 250 file. or
Someone sent this attached a while back. I do not know if it is any good. It is Spektrum but HK450 at least. It should be a starting point anyway.

Don't be in a big hurry to fly. Check everything 3 times. Put on cheap blades, too.

[DBader]

Hi Dave. I am setting up a Blade 450 3D with a Tarot split lock DFC head. My Tx is a DX6i. I am using the Revo Mini. I have loaded the first uav file you supplied 'hk450_dx6i_v3_no_errors.uav'. Is the latest one '160307_hk450_dxi6.uav' a more mature starting point?
If I am correct the head you are using is not DFC. Is this likely to have a significant impact of settings, in particular I am thinking of the PID settings?
What you have written makes sense to me, but I am now about to swap heads over and get my hands dirty, and who knows what I will come across!
I now need to recheck what you have said about DX6i setup.
Thanks for all the advice.

[daveapplemotors]

Those uav files are not mine. They came from another forum member. I fly 250s.

If one works then modify to be yours.

[daveapplemotors]

Oh hey good people,

I might have omitted this tip:

Start tuning at low RPM because it is easier.

When heli is stable then turn up the throttle gradually and continue tuning probably lowering PIs until you get to your target head speed. If it starts to get really wonky then consider dynamic balancing, too.

[utoedter]

I know this is basic, but I really need to get my transmitter setup right before I can make any progress on my CC3D setup.  I have a Turnigy 9X transmitter which I have setup for helicopters and various planes.  Eight different models possible.  For the CC3D, should I set it up as an ACRO plane and let LibrePilot do the translation to a flybarless swashplate helicopter, or should I select the HELI1 option?  This is supposedly a single servo option.  When I connect the Atom to my receiver, I assume the six receiver outputs go to the six Atom inputs in order?  Then I go to the Configuration tab and make the Atom inputs have the same function as the receiver outputs?  Does someone have a UAV file that is similar to a Turnigy Transmitter driving a HK450 helicopter?  Seems like I am asking for someone else to do all the work, but after spending hours I do not seem to be making any progress.  Any help much appreciated.  Lynn, Austin

Hey Lynn,

Dont do any swashplate mixing with the taranis, thats all done inside the CC3D.  The helicopter program is not needed,  just use a normal program. Attached is my Taranis Setup, but please review the settings, because i use it on a Taranis X9E (Mode 1). Ive also blogged the helicopter setup on my website, but its written in german and you have to use a translator.

https://frickelnundmehr.wordpress.com/startseite/trex-clone-und-cc3d

Happy flying
Udo

[kbadra]

Hello guys, I am a newbie to librepilot and even to cc3d and trying to convert an old Walkera V120ds02 micro CP heli, and at first almost everything seems to be ok up until the RC outputs configuration (it is possible to calibrate the tx transmitter inputs with no problems using 1S Lipo, also the receiver works great). But, in output configuration  nothing happens, the servos dont move...I dont know what could be the issue... already tested connecting rx and servos bypassing cc3d (and in this case all servos work great).

[daveapplemotors]

Welcome kbadra,

I hope you get your heli flying well.  You might get some help by reading in this thread:   https://forum.librepilot.org/index.php?topic=1588.0

You can post your UAV file so that we can look for troubles/fixes. You can export the UAV by using one of the top left tabs in Libre Pilot. 

[kbadra]

Dave,

thank you very much!

What worked for me was the trick about the Wizard! (It does not work for me), so I had to send the max, min and neutral by Settings tab.

After the first test from that tab, it worked perfeclty, but I tried in a HK450 at first. I am trying to understand how the process works, my uav file is attached (my first success attempt).

I havent plugged the motor yet, because i still have some issues in mechanical links (the swashplate was wrongly assembled  - there are some fine tuning work to do to mechanically level the links). Asap i have fixed this issue, i`m gonna come back.