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Artem's Groups

Artem's Discussions

New power module proposition

Started this discussion. Last reply by Artem Mar 5, 2014. 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, 2014. 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

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 Copter-3.3 beta testing
"elevate your compass as much as possible, than run compasmot. "
Saturday
Artem replied to Randy's discussion Copter-3.3 beta testing
"Randy, same question as DG, were you guys able to fix the x2 issue with USB connection status? Thx! "
Saturday
Artem replied to Randy's discussion Copter-3.3 beta testing
"Hi Randi and all the devs! After giving my tricopters a long rest I came back to one of my birds and decided to update it from 3.1.5 to 3.2.1 needless to say the improvement is apparent, however it seems that there is a new minimum value for Stab…"
Friday
Artem commented on Klaus Heinrich's group PIXHAWK
"Gavarma, I suggest you disable safety switch at all for the ESC calibration. Also in the full parameter list under ESC startup mode you can choose ESC calibration, than write and restart. And no need to change it back as AC will do it for you on the…"
Wednesday
Artem replied to Randy's discussion Copter-3.3 beta testing
"what I think wiki fails to state clearly is that you set compass orientation in relation to the frame and NOT the flight controller.  Just open up your compass/GPS and fing the magnetometer chip, find a white dot on one of the corners -> for…"
Jul 17
Artem replied to Randy's discussion Copter-3.3 beta testing
"something strange..... I've put orientation: ROTATION_NONE and it works! offsets are 0, 30, 37 "
Jul 16
Artem replied to Randy's discussion Copter-3.3 beta testing
"I think there is an issue with how either MP sets this parameter or an AC bug with adding up angles.  Randy, could you take a look at this issue? "
Jul 15
Artem replied to Randy's discussion Copter-3.3 beta testing
"which firmware was that on? "
Jul 15
Artem replied to Randy's discussion Copter-3.3 beta testing
"have you figured it out? "
Jul 15
Artem replied to Randy's discussion Copter-3.3 beta testing
"not only 3.3, but also 3.2.1... I have an X2 board which I needed to yaw 180deg for cleaner wiring. so for 3dr gps/compass I was trying to find yaw180/roll 180, but there is only pitch 180 which I do not believe works as after choosing this setting…"
Jul 15
Artem replied to ThatJoshGuy's discussion Pixhawk BAD ACCEL HEALTH APM 3.2 - collecting data
"by design m8n are much more sensitive than 6m/6h thus they are much more susceptible to noise from the onboard electronics. combined with a lack of proper saw and lna filtering on the cheaper models produces some really bad results even though they…"
Jul 13
Artem replied to ThatJoshGuy's discussion Pixhawk BAD ACCEL HEALTH APM 3.2 - collecting data
"that's I thik one of the new ekf errors, are you running 3.3 RCx y any chance? If yes, better to place to ask this question will be the ac3.3 beta thread..  p.s. are you using an m8n GPS? "
Jul 13
Artem replied to Randy's discussion Copter-3.3 beta testing
"As far as I know nope. But as Randy mentioned it could also be a power problem, however I think if it is the case, than it would also power down the whole 3.3v line on the FC board meaning that your gyros, acc and the onboard compass would be…"
Jul 13
Artem replied to Randy's discussion Copter-3.3 beta testing
"I think that i2c LED has the same i2c address as your compass. "
Jul 12
Artem commented on Graham Dyer's blog post Prop testing on a 'copter
"Yes, air density plays huge role. In my case at sea level my tricopter takes 10-12amps to hover (depends on batt voltage) up 6700ft it was taking 14-17amps all else being the same.  Also do not try to use autotune on a tricopter with 3 AC…"
Jul 11
Artem commented on Egor_FPV3DCam's blog post 3D FPV camera The BlackBird 2 and Android smartfone
"Molodca! "
Jul 10

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Comment Wall (4 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.

At 5:33pm on June 27, 2015, Paul Atherton said…

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