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
"here it is. pls let me know if you think this is a board's fault..  but so far, flew great 3 full batts,  on the 4th batt, I parked it in a tree again, this time the tail servo got damaged, so now there is a little play in the gears…"
9 hours ago
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"Ok, just reflashed, calibrated and now Imu2 is normal... Weired.... Healthcheck would be good i think."
yesterday
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"Hi Randy, thank you for the analyze of the log. I have EKF switch on channel 8 as an experiment, it was turned on in about 1min after take off. also I am attaching another log here, it too show crazy values for the imu2. "
yesterday
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"Randy, I onow you are busy, bit I think it will might be worth your time to check the log I posted here yesterday. In short, this was my first pixhawk flight with rc5 and ekf enabled on a tricopter. It was at night so no sunlight, copter shot up to…"
Sunday
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"just tried rc5 on pixhawk with ekf enbled.  flew fine for 3 mins, than unexpectedly shot up while in loiter, only when I lowered my throttle to 0 it stopped, than I switched into stab and landed copter in a tree with just one prop scratched.…"
Saturday
Artem replied to Randy's discussion ArduCopter-3.2 beta testing
"bad compass calibration most likely.... this is called toilet bowl. "
Saturday
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

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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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