@ultrafuge wrote:
Sometimes it is so easy to reduce the vibration level, just try different headspeeds
![:slight_smile:]( ":slight_smile:")
Detail at sweet spot:
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Reducing vibrations - find the sweet spot
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Proper PID tuning?
@PittRBM wrote:
From what I understand, tuning guide WiKi is super outdated. Can someone point me to up-to-date method?
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APM 2.6 Trex 450 FBL Use ALT HOLD without a governor?
@rfine7666 wrote:
Thanks in advance.
I have a 450 clone helicopter with a Tarot FBL head and APM 2.6, flying fairly well for just starting out, usually I am flying quads..
Question 1 can I use mission planner flight mode ALT HOLD with this FBL helicopter setup with just a 50a ESC with no governor? Or is a ESC with a governor mandatory to maintain altitude hold or Loiter flight modes?Question 2 Just starting out with this helicopter and just wanting to maintain level hover for now, but it seems that while trying to hover around 10-12 feet up that the copter is wanting to drift a lot side to side or front to back, (tail is holding well). Do you think this is P I D settings of is there something else I am missing?
Thanks again
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Synchropter build need help
@PittRBM wrote:
I'm building a sort of dual rotor helicopter similar to tandem called synchropter/Intermeshing rotors.
Find some pictures and details here
http://www.helifreak.com/showthread.php?t=767076fhedberg recommended his code for dual rotor helis at https://github.com/ArduPilot/ardupilot/pull/1860
few months ago and I haven't heard from him since.I have desired servo mixing now but having problem with servo trim and range.
Heli setup page is greyed out so I am using full parameters page.
H_SVn_TRIM and Min Max don't work and I'm not very good at coding to fix it.Also, many people are saying I need separate servo rail for my Pixhawk 2 while a site stated 10A, 10V max. If I'm using power module, do I still need separate servo rail?
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Pixhawk and Trex 450
@ardisd wrote:
I am going to put a pixhawk into an old trex 450 do a need to change the head to flybarless or will it be ok to test with the flybar
David Ardis
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Goblin 500 Sport uncontrolled descent
@frizensami wrote:
Hey all, I've just recently flown a Goblin 500 Sport with Arducopter 3.4.4, and a few seconds after takeoff in Stabilize mode, it came straight back down and hit the ground hard even with close to max collective and fairly high throttle. I'm using a Hobbywing Platinum 100A V3 ESC in governor mode and have roughly 2000-2100 RPM headspeed. I can't conclude much from the logs except the throttle and collective values, perhaps someone else could take a second look?
2017-01-08 08-09-47.bin (1.3 MB)
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Rotor Speed Governor
@dmitiy wrote:
Hello,
I have heard that governor function will be able in 3.4.
I would like to know if there are any prospects in this direction.
It would be great to use internal governor instead of external one.With respect,
Dmitriy
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ArduPilot's new aircraft Devil 420 TBR
@zhangsir wrote:
420mm three blades, 19T motor gear, 19T tail shaft gear. Very good body vibration performance and good battery life efficiency, CUAV Pixhack v1 & CUAV mini M8N GPS,I like it
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Servo Reverse and Trims
@ardisd wrote:
I am new to traditional heli and have been having trouble getting Servo Reverse and trims to work in ether the GUI or the full parameter list for Traditional Heli V3.4.3, When I loaded 3.3.3 everything works as expected. Is this a problem or am I doing something stupid.
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V3.4.4 Swash setup GUI
@OAPpilot wrote:
I've am udating my 450 heli with a pixhawk and X8R RX. When I try to setup the swash page in Mission Planner, The reverse servo and trim do not work at all.If I download V3.3.3 all works fine.
Anybody else had ths problem?OAPpilot
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Setting up Pitch in mission Planner
@OAPpilot wrote:
Pixhawk with D8R RX, and Taranis 450 Heli
Now I'm trying to setup the PITCH:- I found this,
Change the collective pitch on your radio to move the swash to it’s upper and lower limits. If you accidentally move the swash too far so the servos bind, manually set the Top and Bottom of the range in the field provided.When I alter the servo's top, bottom, and mid range, Also tried altering in the Parameters it makes no difference to the servo movement. As far as I can see this is the way to set the PITCH.
What am I doing wrong
OAPpilot
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Tail Rotor Tuning
@ardisd wrote:
I have done a few test flights of my T-Rex 450 Pitch and Roll standard tuning is not bad but the tail feels very soft despite almost doubling the Yaw P Gain. My feeling is its a tradition heli without a flight controller it would need more gyro gain and revolution mix
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Pitch and Throttle tuning
@ardisd wrote:
What is the correct hovering position for traditional Heli at the moment mine is hovering at about 75%
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Swash locking up when flight modes are changed
@OAPpilot wrote:
Hi
I've have a 450 Heli with a pixhawk and Taranis Firmware updated to V3.4.4. I have setup the swash as per ROB's Video
All has gone well, but if I change the flight mode from Stablize the swash moves down to the low position, and locks up.I have tried various flight modes.
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Non-zero Desired Roll on takeoff
@frizensami wrote:
Hey all,
During a recent test with Pixhawk 2, Arducopter 3.4.4 and a 500-size heli frame, I noticed that the copter tended to roll right quite significantly during takeoff, so the takeoff was aborted.
I realized that the Desired Roll (ATT-DesRoll) was about 3 degrees after arming the copter and increasing throttle instead of zero.
Is this intended behavior to compensate for translational tendency or similar effects?
In case it's hard to see, the blue line refers to the desired roll, which I expected to be zero, but its increase corresponds with arming and an increase in channel 8 throttle.
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Why ch0 ch1 ch2 ch3 output is 0
@talos wrote:
I am using Copter 3.4.1, sometimes when I connect Mission Planner, ch0, ch1, ch2 and ch3 output is 0, but this is just few times. What could be cause this happen? Thanks
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Throttle setup in AC 3.4
@johnemc wrote:
My Trex 450 Pro / Pixhawk is finally tuned and flying with Throttle in Ch. 8 Input mode (1) using a throttle curve setup in my radio. I thought that the controller would not adjust throttle with this configuration in Stabilize mode? But the settings in MP Heli setup for Throttle Accel (P,I,D,IMAX) and Throttle Rate (P) seem to have a big effect on my throttle output. I am getting sudden changes in RPMs. The docs (ardupilot.org/copter/docs/traditional-helicopter-tuning.html) appear to be outdated and I am stuck. Am I correct in using H_RSC_MODE=1? Is possibly the new feature that autosets hover throttle causing a problem?
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Compass Mot on Traditional Heli
@ardisd wrote:
How can you do compass mot on a traditional heli or is it necessary
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H4-X Swash plate
@Mustafa_Efe_Cetin wrote:
Hi there,
I have a helicopter frame with H4-X swash plate configuration. As you are already know that pixhawk is supportng upto 3 servos. Do you have any suggestion? How can I modify the mixer for this configuration?
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Participants: 4
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Vibration damping?
@Implicit wrote:
So, I'm about to buy a Protos 500 and are going to jump in this pool with both feet.
I have a fair amount of experience with Arduplane, but my heli experience is limited to a MCPX and multirotor experience is racequads only. But hey..how hard can it be? (Famous last words).
What's the best strategy for dealing with anti-vibration mounts? I'm printing one of these as we speak:
http://www.thingiverse.com/thing:1451806,
I also read this page:
http://ardupilot.org/copter/docs/common-vibration-damping.html
However that seems mostly geared towards multi-rotors. What type of vibration dampening is the most effective for trad helis? Small stiffer ones? Or the larger softer ones.Cheers,
Jakob
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