Artem's Friends

  • Gyrobot
  • Mikhail
  • Julien Dubois
  • Forrest Frantz
  • Rolf Blomgren
  • Shyam Balasubramanian
  • Tommy Larsen
  • Simon Howroyd
  • Rob_Lefebvre
  • emile 'butch' alline
  • Michael Oborne

Artem's Groups

Artem's Discussions

New power module proposition

Started this discussion. Last reply by Artem Mar 5. 7 Replies

Hi everyone! I would like to list two ideas (none novice or mine) which I hope will gain the attention of our community and result in 3dr introducing some new products and functions in the apm…Continue

Tags: halleffect, hall effect, voltage sensor, current sensor, 6s

MyFlyDream AAT and APM/Pixhawk

Started this discussion. Last reply by mP1 Feb 18. 2 Replies

Hi, I am seriously considering building an antenna tracker. However after some research and sourcing all the various parts/bits and pricing it all together I get a really "hacked-together" looking…Continue

APM Output Function

Started Dec 17, 2013 0 Replies

Hey, could someone point to me where can I find APM_RC library? Also, am I correct that this library includes functions which are used to control APM output? this is what I am trying to do:currently…Continue

noob question

Started this discussion. Last reply by Artem Nov 19, 2013. 6 Replies

Hi everyone, I've just finished building a tricopter, put an apm 2.6 with external mag/gps on a self made mast very far from any interference, but close to the CG my apm is directly on the CG. done…Continue

Tags: 2.6, apm

 

Artem's Page

Latest Activity

Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"@Randy Would it be possible to merge this pull request in rc6? https://github.com/diydrones/ardupilot/pull/1150 It is a very handy/simple gimbal for fpv."
Aug 19
Artem replied to Rolf Blomgren's discussion APM MavLink to FrSky X8R S.Port converter
"Hector, please advise if this will work without telemetry modules, as I do not see a way for it to request mavlink from apm/pixhawk."
Aug 17
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"Randy, thank you for the wiki update---it clearified much of my questions, however can you try to elaborate on why compass calibration on 3.1.5 returns consistient numbers, while compass calibration with 3.2-rc4 returns numbers varying by 30-40…"
Aug 12
Artem commented on vis.asta's blog post Brushless gimbal to shoot 360° video
"Molodcy rebyata, tolko ne sovsem ponyatno chto eto za controller? AC3.1.5 ili ero voobsche ne s apm opery?"
Aug 11
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"I am on apm and usins external mag/gps compas mot barelly ragisteres at 100% throttle even at 6s. Also copter has much more pricise direction hold on 3.1.5 than on any 3.2-RC. Also, as mentioned earlier by me and raph at 3.2-rc4 compas calibration…"
Aug 8
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"can you guys do 3.1.6 in the mean time with the 3.1.5 issues fixed only and maybe RSSI voltage range parameter added.... honestly this is all I need for now (and I assume everyone else too).  Is the reason you guys want to jump to 3.2 is that…"
Aug 7
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"here is another log of err16-2 as well as err flight mode-5 also, after executing RTL, copter did not enter LAND portion, instead remained at the RTL altitude for about 15sec, after that I switched it to loiter and landed. after that copter failed…"
Aug 6
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"Julien, I think this is something more complicated than the ekfcheck, both me and Raph noticed that everytime we calibrate compass with rc4, we get different values, sometime difference is small sometimes it is in the magnitude of 30-40 points.…"
Aug 6
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"I think this is where the 16-2 comes from.... magnetometer is not getting calibrated correctly.... either MP fault or the way rc4 handles/provides data from mag to MP during calibration. so when the new EKFCHECK function catches discrepancies it…"
Aug 6
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"Just noticed that when loaded with rc4, calibration procedure returns different numbers every time I try and some values differ a by 20-30 points.  In comparison, when loaded with 3.1.5 I get more or less the same values every time I do…"
Aug 6
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"Randy and Julien here is another log with plenty of ERR16-2. more on the setup/ particalar flight: foldable tricopter with 16mm CF tubes flight controller: APM 2.6 by 3DR with 3dr gps/mag running 3.2-rc4 motors/ESC/prop/batt   4108-380kv/30amp…"
Aug 5
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"Julien, is it possible to specify which failsafe occurred based on the "17-1" code? because, looking at the logs I cannot find anything indicating any probs with GPS or throttle going below 975, batt failsafe and GCS failsafe were…"
Aug 5
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"Similar behavior in the attached log, between 15th and 16th min.  in my case copter went into the "alt hold" and started drifting with the wind and would not respond to any stick movements, until I put into stab mode, only after that…"
Aug 5
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"i am running it on apm2.6 so, does it mean that some form of EKF is getting on the apm too? "
Aug 4
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"Yes, noticed that too. Does your tri "pulsate" in alt hold?"
Aug 3
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"Ok, i have wiped eeprom with arduino ide, loaded rc4, calibrated, tried flying it. Stab flyes perfect, no any anomalies, as soon as I turn on alt hold, copter starts pulsating throttle at about 1hz and doesn't hold alt. However, if i put it in…"
Aug 3

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Comment Wall (3 comments)

At 6:05pm on January 29, 2014,
MR60
Forrest Frantz
said…

What is your budget?

At 6:14pm on January 29, 2014, Artem said…

this is going to be for my "dream tricopter"  and thus I will be making some saving for this purpose, so if it is under 100usd than I think I could afford them....  so far I found NX-4006-530kv motors 67g 481g @ 3.35amp theoretically 

At 6:16pm on January 29, 2014,
MR60
Forrest Frantz
said…

Also, can I phrase the question as such:

Is there a rotor (motor and prop) that generates more than 430 grams of net thrust (500 grams less motor weight of 70 grams; thrust after the weight of the rotor is removed along with the additional weight of 2 grams per inch of prop over 10"), while sipping 43 watts or less (3 amps at a 4S voltage that varies between 10 and 17 volts)?  In other words, a rotor with an efficiency of about 10 grams per watt at 430 grams of net thrust.

Is it OK to word the question that way?  If so, then a 130 gram rotor generating 560 grams thrust at 43 watts would be OK as would a 50 gram rotor generating 480 grams of thrust at 43 watts.

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