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Capstone Search and Rescue Project. Help Needed to Finish!

Started by Talha A.. Last reply by Talha A. 10 minutes ago. 47 Replies

I had initially raised this question in Arducopter 2.x group yesterday but since no one replied and I really need help, I am posting this question in the Arducopter User Group.Here is the situation:I…Continue

Tags: EKF, APM, Compass, GPS

Question about 3 Important Parameters

Started by Ehsan Zibaei. Last reply by Ehsan Zibaei 13 hours ago. 5 Replies

Hi friends!I'm doing an experiment with APM and I need to know the order of magnitude of these parameters: 1. Noise of accelerometer and gyros. 2. Time delay between sending a waypoint to autopilot…Continue

GPS errors occur in Auto

Started by Edgar Scott. Last reply by Doug Walmsley yesterday. 21 Replies

for some reason I seem to get a lot of GPS errors in Auto mission.Im not really sure what's going on but from log I think the GPS may be getting an error?Also seems to have a flight more errorAPM…Continue

Quadcopter X

Started by Umut TEKİN. Last reply by Candy S yesterday. 5 Replies

Hi everyone. I am new here. I have apm 2.6 and 3DR quadcopter x. I finished assemblying and setup arducopter programs to apm 2.6 via missionplanner. At last, i connect to battery and give the…Continue

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Comment by Rui Manuel Cravo Marques on February 24, 2012 at 4:38am

Gjango, I don't know if you're familiar with this site : http://www.ecalc.ch/ 

The thrust depends on several factors : motor power, motor kv, propeller used. A 100w motor with 800kv and a 13" propeller will give you less thrust than a 300w motor with 800kv and a 13" prop, since the last one will be able to maitain higher rpms with such a "eavy" prop, but the motor will also be heavier. Pay attention, sometimes motors have in their specs the thrust, but it's not lifting thrust but horizontal thrust (for planes)

Comment by Gjango on February 24, 2012 at 4:28am

hi to all

How can I calculate the thrust produced per motor in kg?

Comment by Ellison Chan on February 18, 2012 at 10:36pm

Well, 850kv @ 20amp would probably generate over 1kg thrust per motor.  So your flying weight with the gopro is over 4 kg?  That does seem like a heavy drone.  If you're really over 4kg, you should probably be looking at a hexa or octo.  Since if you try to find motors for a quad that can lift greater than 4kg, you're talking about expensive motors and escs.

Comment by Adli Shahnaz on February 18, 2012 at 10:06pm

Elison, 850kv with 20amp ESC. I just transferred from the normal jdrones ardu frame to the X1 frame. Should I change the motors and the ESC?

Comment by Ellison Chan on February 18, 2012 at 10:02pm

Adli, what kv motors come with that frame?  12x45 sounds like they're big for a 20amp rated motor..  Adding another battery in parallel will likely make the lifting ability worse, since there will be the extra weight of the battery added to what you say is an already heavy drone.

Comment by Adli Shahnaz on February 18, 2012 at 9:46pm

Hi guys,

Can I add an extra battery to the arducopter?What do I need to do in order to do that? Help please. Right now, I am using the JDrones X1 frame with 20amp of motor and 12 x 45 props. It seems  a little bit heavy to lift with gopro attached to it. Thanks.

Comment by Sayan Andriyanov on February 4, 2012 at 12:11pm

Adli, is your camera fixed or it dangles?

Comment by Gage Halverson on January 29, 2012 at 5:55pm

I have the official 900Mhz telemetry kit soldered it myself I've tried using x-ctu and unbricking and reloading the firmware 

i called diydrones store and the lady didn't know what to do 

i found this posts and i kinda tried it (not soldering the wire on but just holding it therehttp://diydrones.com/forum/topics/xbee-900-kit-lights-but-no-telemetry?xg_source=activity&id=705844%3ATopic%3A645885&page=2#comments

and http://diydrones.com/forum/topics/xbee-pros-unable-to-talk-w?commen...


3D Robotics
Comment by Chris Anderson on January 29, 2012 at 4:06pm

Gage: You'll have to post info on your whole setup. If you're not using the official 900Mhz telemetry kit, I won't be able to help you. (I've never used anything else)

Comment by Gage Halverson on January 29, 2012 at 3:19pm

Hey i really need help with the telemetry i can get it to connect

 
 
 

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