About

Gender

Male


About Me:

Retired engineer


Please tell us a bit about your UAV interest

APM and scratch built wooden H-coper. Next project wooden HEXA


Hometown:

Naustdal


Activity Feed

JHIN replied to Rolf Inge Sivertsen's discussion AC3.2.1 APM 2.5 Throttle pulsates in Loiter
"Thanks "Henny V"!
I forgot to mention it in my previous posts - so much to remember...
From my "tuning log" (sorry for formatting and Norwegian) I changed this earlier:
"DIYdrones - Autotune-tråden, side 64, omtalar mulige endringar:
               …"
Apr 5, 2015
JHIN replied to Rolf Inge Sivertsen's discussion AC3.2.1 APM 2.5 Throttle pulsates in Loiter
"Hi again!
Bad news from last days tuning 3.2.1. I have played with tens of permutations of ThrottleAccel P&I without satisfaction. Mostly lowering both by the same rate, ie. "P" half the "I" value. The pulsing decreases a little by lowering the…"
Apr 5, 2015
JHIN replied to Rolf Inge Sivertsen's discussion AC3.2.1 APM 2.5 Throttle pulsates in Loiter
" Rob,
You nailed it!!
And it is embarrassing! With Arducopter 3.1.5 - after gradually changing "Throttle Accel" P/I from 0.750/1.500 to 0.500/1.000, and "Throttle Rate" P from 6.000 to 3.000 - the pulsing is gone. Just a very small disclaimer - the…"
Apr 3, 2015
JHIN replied to Rolf Inge Sivertsen's discussion AC3.2.1 APM 2.5 Throttle pulsates in Loiter
"Congratulations "piku"!
While I am waiting for my new motors and props, could you do me a favour? Please make a short flight in Stabilize and Loiter/AltHold and upload a graph showing ThrIn, ThrOut and AccZ - similar to the one I made i my first…"
Apr 3, 2015
JHIN replied to Rolf Inge Sivertsen's discussion AC3.2.1 APM 2.5 Throttle pulsates in Loiter
"Hehe, I noticed - thanks for your suggestion anyway! From the log you may see that the thr_mid already was set to 640 (recommended, same as ThrOut). Before your latest message I set it back to standard 520 and made a test - as we can see, same…"
Apr 2, 2015
JHIN replied to Rolf Inge Sivertsen's discussion AC3.2.1 APM 2.5 Throttle pulsates in Loiter
"Some graphs from my tricopter:
- Mini APM V3.1 ArduPilot Mega - Motor: 3 stk. RcTimer 4215-460kv- Servo:Towerpro MG995- ESC: RCTimer 30 A- Battery: Turnigy nanotech 5Ah - 3s- 650mm motor to motor- Props: 14"x4.7" APC
- AUW with 5Ah battery: 1760g
I…"
Apr 2, 2015