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ArduCopter User Group

Discussion group for ArduCopter users

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Build APM 2.6 for data logger

Started by Vitalii S.. Last reply by CHRIS CAZE 5 hours ago. 1 Reply

Hi!I want to build small data logger for our plans. We want to use it on light gliders so every additional gram and mm has great importance. It should be really small, like 50*40*5 mm  or less ( I…Continue

Analyzing Log files

Started by Tim Callinan. Last reply by yuvraj 17 hours ago. 1 Reply

Hello All,If someone has the ability or experience to analyze my downloaded log from a crash - i would appreciate it. The Y6 faired pretty well - just 3 broken props as far as I can tell so I'm not…Continue

Camera Pan Tilt Power

Started by Damo. Last reply by Spencer Willis yesterday. 3 Replies

With JP1 removed, is it ok to power my finwing 390 pan tilt servos from the oututs of the APM on channels 6 and 7?thanksDamoContinue

APM 2.5 Info

Started by Paul N Braida M.E. Last reply by Paul N Braida M.E yesterday. 4 Replies

 Hello:I have the Aerosky APM 2.5 flight control and am installing it in my Quad copter.It came with zero information so I am struggling to get info bit by  bit.What I do not have is info on 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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