Mihai Nicolae Sichim
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Mihai Nicolae Sichim's Discussions

Pixhawk 2.4.8 ( bangood version) crash analysis

Started this discussion. Last reply by Mihai Nicolae Sichim Mar 4. 6 Replies

Hi all, i am new in the drone building world ( aabout 1 year) and finaly i found this community where people share experience but most of all are helping others. So, first of all excuse my English.I…Continue

 

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Mihai Nicolae Sichim replied to Mihai Nicolae Sichim's discussion Pixhawk 2.4.8 ( bangood version) crash analysis
"No, I haven't made the tests how it should. I will first make some low alt flights with various flight modes and than after a 1 hour of flght i will sacrifice 1 battery. Hope that my esc setup is right for my low kv motors. Thank you for your…"
Mar 4
Andre K. replied to Mihai Nicolae Sichim's discussion Pixhawk 2.4.8 ( bangood version) crash analysis
"If voltage dropped enough, given wind, instability , a flip is not unthinkable. I would attach a power module that works.  would test the ESC's for low-voltage behavior, (using a lab PSU)  , but you can do that with…"
Mar 4
Mihai Nicolae Sichim replied to Mihai Nicolae Sichim's discussion Pixhawk 2.4.8 ( bangood version) crash analysis
"In this case i must mention that the battery as it is only 10c is very weak, and i know that after the crash was 3,85 per cell, but in the air with all six motors maybe failed under 3,5 per cell and after crash restabilished. But i remember that…"
Mar 4
Andre K. replied to Mihai Nicolae Sichim's discussion Pixhawk 2.4.8 ( bangood version) crash analysis
"yes , a single motor failure would look different, I could have been PID's that were too slow, if some esc's reduced performance due to low voltage or heat. that could explain instability and flip,  I forgot to mention; in the video…"
Mar 4
Mihai Nicolae Sichim replied to Mihai Nicolae Sichim's discussion Pixhawk 2.4.8 ( bangood version) crash analysis
"Yes, you maybe right , but i forget to say that here was a strong wind, and maybe did that to correct it's self becouse was in loiter mode? Anyway, should't an six axis drone remain in the air even with one motor-esc failing? Thank you for…"
Mar 4
Andre K. replied to Mihai Nicolae Sichim's discussion Pixhawk 2.4.8 ( bangood version) crash analysis
"the last 20 seconds before the flip, you can see it oscillate in pitch axis pretty badly, +-15 degrees. Can it be some ESC's hitting voltage cutoff, low voltage, or overtemperature protection ? You have no battery voltage/current logging, that…"
Mar 4
Mihai Nicolae Sichim posted a discussion

Pixhawk 2.4.8 ( bangood version) crash analysis

Hi all, i am new in the drone building world ( aabout 1 year) and finaly i found this community where people share experience but most of all are helping others. So, first of all excuse my English.I build this drone :Tarot 680 proPixhawk 2.4.8 bought from bangoodZTW spider pro esc 30A opto tiny version ( i've changed some parameters as in the attachment)Sunnysky v3508 580 kv with 13*55 propMultistar 2x 4s 5200mah 10c total of 10000mahCurrent sensor and voltage but never made it to…See More
Mar 3

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About Me:
Like to build, then rebuild, then rebuild again...
Please tell us a bit about your UAV interest
Drones and plane with the highest tecnology.
Hometown:
Romania

Comment Wall (1 comment)

At 6:23am on March 1, 2017, james essien said…

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