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Discussion Forum

tarot t4-3d gimbal compability with pixhawk

Started by Nichon. Last reply by Gabor H 55 minutes ago. 4 Replies

Anyone managed to get pixhawk to control the t4-3d gimbal?i've tried following the same steps in the wiki but that was for the 2 axis gimbal…Continue

Leddar One optical range-finder support coming to ArduPilot?

Started by Tony Kenward. Last reply by Lance Brummett on Sunday. 13 Replies

Now that the LidarLite is off the market (until Garmin brings it back), there are not many options for accurate altitude sensing.I have a optical flow sensor that I would like to mount up, but I…Continue

Building Copters with Round Tubes - Stronger, Lighter, Easier to Mount Motors than Square Tubes

Started by Forrest Frantz. Last reply by Forrest Frantz on Friday. 577 Replies

Round tubes offer the following pros:handle twist better than square tubes.  Thus for the strength, are far lighter.are more readily available (pipes, tubes, arrows, kite frames, golf clubs and…Continue

Noob build: Twitchy control with Quadcopter using Pixhawk...what am I missing?

Started by Glenn Hollowell. Last reply by Glenn Hollowell on Friday. 4 Replies

I've got a genuine Pixhawk that I bought from 3DR that I am trying to get configured properly. I am running Mission Planner 1.3.36 and have run through the basic configuration process (compass,…Continue

Tags: tuning, Pixhawk

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Comment by Clifford Sumner on September 18, 2015 at 6:51am

Arducopter stuff might be the coolest stuff EVER!

A comment by Clifford Conrad Sumner

Comment by David Pulvermacher on September 11, 2015 at 12:01am

The Flight of the Valkirie. Wagner!

Comment by Khoa Vu on September 10, 2015 at 8:36am

good music to listen to while flying?

Comment by bob cooper on September 9, 2015 at 4:14pm

I would like your help.  Safety is my number one issue with drones. Last year I was learning to fly my  Parrot AR. Drone that I had fitted with carbon fiber blades.  I was doing a simple take off and landing in the living room to impress a friend.  I was hovering and accidentally hit the "Home" button. Instead of a soft landing the AR Drone took off from a distance of about 10' from me and came right at my face.  As I was trying to deflect it, the carbon fiber blade put a gash on my left eye, just missing my eyeball.  I don't know about you, but that really soured my experience and nearly put out my eye. 

I had every intention of taking the money I had saved to start a Real Estate Photography company.  Instead I became afraid of the drone. A friend purchased a Phantom from DJI and had a very similar experience on his very first flight.

Oddly enough I became so fascinated with the industry that started to look for solutions to the danger of any multi-rotor with plastic or carbon fiber blades.  I came up with what I affectionately call DroneKone.  It is complete and substantial propeller protection to help make drones safer.

I started a small company with my limited funds and developed a model of my concept.  I was able to get a provisional patent on my safety device.  Then I had a devastating life event and was out of action for a year.  I have recovered.  I don't have any funding at this point except out of my pocket and started seeking funding. I was told by a potential investor that I needed to survey 100 people to find out if my product is market worthy.

Okay enough story.  Simple Survey for Safety:

  1. Yes or No  Are you concerned about drones flying around Children? 
  2. Yes or No  Do you have a concern about your personal safety when flying a drone?
  3. Yes or No  If a safety device was available would you consider purchasing it?
  4.                  What would a safety device look like to you if you could design one?
  5.                  How much would you pay for a safety cage if one was available when you purchase your drone.

I greatly appreciate you reading this far and ask for help.  If this is just plain stupid, then I would like to know that now, before I spend any money on moving further.

Thank you so much for listening.  I am grateful to be a small part of this awesome community.


Comment by Cala on September 9, 2015 at 6:33am
Many thank's Justin, I deleted my question about how to connect an old gps on a pixhawk because I noticed that my newer gps have 6 wires but only different connector and I'm going to change the plug and use that but your info is usefull for me because I have another apm and I'm going to replace some time later too.
Comment by James Lummel on September 9, 2015 at 12:39am

I've been using the APM 2.5 controllers that come on the Cheerson Cx-20 and the Quanum Nova, and a Pixhawk on a hexacopter 550 build and never had issues with GPS lock or low satellite counts, yet hear all the time about GPS issues in the various multirotor forums around the Internet. I just assembled a HK H.A.L. quad and used an APM 2.7 FC and for the very first time ran into GPS issues with a VERY long time to lock and low satellite counts. This problem would go away when I plugged in the USB though. After chasing ghosts thru the power system and adding filters, etc, I noticed that when the dome where the GPS was mounted was lifted up, it was a little more than an inch further away from the APM than when it was down in the flight mode (GPS is mounted on the top). So I ran some copper tape on the inside of the dome under the GPS to shield it from the APM and now get as good of reception as I get on both the APM quads (CX-20 & Nova) and the Pixhawk on the Hex! So my question is to people having GPS reception issues, how well is your GPS shielded? If you are having problems, is it shielded well enough?

Comment by Justin Helios Drone Tech on September 8, 2015 at 7:51pm

Comment by Jani Hirvinen on September 2, 2015 at 8:17am

@Ali you can use basically what ever quad for that. It can be even 2 sticks crossed with motors mounted on end of those. As long as its all symmetrical. Symmetrical frame just makes initial software development more easier. I would say have/make frame that has motor to motor distance something around 60-65cm for start. 

Comment by Jani Hirvinen on September 2, 2015 at 8:14am
    1. @amirhossein, no you should not do that. You only need to calibrate accels if you change orientation of your autopilot for example when you change it or do bigger modifications to your frame. Also rarely when we make bigger changes on software, accel calibration is needed. 

    There is quick accel calibration check when you connect your mattery but that is different calibration initiated from MissionPlanner or other GCS.

Comment by amirhossein eshtiaghi on September 2, 2015 at 7:24am

Hi, Why should I calibrate the accelerometer before every use? I believe I am doing something wrong.


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