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tarot t4-3d gimbal compability with pixhawk

Started by Nichon. Last reply by Gio Michell 13 hours ago. 7 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

An assembled kit for learning to code for control theory?

Started by XJZeng. Last reply by XJZeng yesterday. 14 Replies

Hi all, I'm hoping that my question is not too open ended.I'm interested in learning how to code the control systems for quadcopters. As a start, I would like to look into solving the equations and…Continue

Can PIXHAWK receive and analysis the GPS protocal of BESTVELA

Started by churl11 on Thursday. 0 Replies

Recently, I've added RTK GPS module on my PIXHAWK(firmware 3.3.3).I checked the Ublox's GPS protocal was NEMA 0183 which inluded GPGGA GPGSA GPGSV GPRMC GPVTG GPGLL.But my RTK GPS module can give…Continue

Coax 8X quad

Started by David Pulvermacher. Last reply by Forrest Frantz on Monday. 4 Replies

Is there any reason why one cannot add four pushers to a quad using just four escs to control all the motors?I know that there would be no redundancy with that configuration, but there is an…Continue

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Comment by iskess on January 7, 2015 at 3:33pm

What have people found to be the most efficient forward speed for mapping on a 3DR Y6?

Comment by agentremnant on December 16, 2014 at 2:46pm

Please stop the misinformation.

2200kv with a 6s will kill a 30a/40a ESC.Also, weight of quad impacts flight time..... Slower KV larger propellers is more efficient. Battery capacity influences flight time and somehow you estimate flight time without this variable..... So please just stop. 

Please use a calculator sch as http://www.ecalc.ch/

Battery voltage, KV, Propeller size are all contributing factors. Voltage can be anywhere from 3 - 50v. 

2200kv..... I would never recommend this speed of motor on multirotor unless using 2S.... But your discharge requirements on the LIPO are going to severely  limit thrust.

Comment by Tony Hyde on December 16, 2014 at 2:30pm

2200kv @ 30A will but it depends on the motor and props for lift..
2200kv is usually a small profile motor for about a max of 8 inch props and at that wattage 2 or 3 cell you are looking around sort of 15 mins flight time on a quad or tri.

Comment by Jadson Dos Santos da Silva on December 16, 2014 at 1:45pm

Prezados Colegas ,

Sou iniciante nesta área e gostaria de saber como posso da iniciar a  montagem do meu Primeiro Drone,gostaria de sabe dicas sobre componentes e matérias que serão utilizados na montagem.

Desde já Agradeço a Compreensão.

Atenciosamente.

Jadson Santos

Comment by Artem on December 16, 2014 at 12:58pm

Question about pixhawk hardware:

pixhawk logs vcc @ 5.13v, however its servo rail voltage measures 4.41v. I use 6s lipo, so I have a non 3DR power module and at first I though that the problem was with its BEC sagging under load, so I disconnected it and measured voltage without load exactly 5.13v (as pixhawk logs) When I connect a 9W LED, voltage goes up to 5.2v so this is definitely not a PM issue. Is there some kind of a diode between the main vcc and the servo rail? 

Comment by Josh Welsh on November 27, 2014 at 12:39pm

I hear ya man, don't sweat it.  Now let's go fly! :)

Comment by Doug Walmsley on November 27, 2014 at 9:27am

@Josh and @David

I apologize for the comment I made earlier, I'm venting because there are folks out there who think they know what's best for me and others.  I do see a benefit for having it, but I don't want it forced on me unless I break the 400' ceiling.

Comment by Josh Welsh on November 26, 2014 at 8:29pm

I actually live inside two circles haha


Moderator
Comment by David Anders on November 26, 2014 at 7:19pm

I live within one of the circles... The dotted lines in the sky are quite annoying. But seriously, I share your pain.

Comment by Doug Walmsley on November 26, 2014 at 6:50pm

My issue is with the display.  I can barley see the map due to the TFR circle over my property.  I'm not saying to rid it, but I'm allowed to fly withing the TFR as long as I do not break the 400' ceiling.  Therefore, I should have the right to turn off the TFR circles if needed.  Since I'm sure you don't live within one of these circles, it's easy for you to stomp your feet and be vocal for something that doesn't affect you. 

 
 
 

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