" Yaw" issue with my quadcopter Help Needed !!!

Started by Dr. Abhishek Agrawal, March 03, 2015, 10:11:44 AM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

Print
Go Down Pages1
User actions

Dr. Abhishek Agrawal

March 03, 2015, 10:11:44 AM Last Edit: March 03, 2015, 10:45:02 AM by agrawalabhi24
Hi everyone

I have quadcopter with following specifications

Motors:  Multistar 2216 800kv v2
ESC:     Simon K 20 Amp
FC:       DJI NAZA M - Lite
Batt:     4200 mah 20C  3S ,  1200 mah 3S for Gimbal
Prop.     10x4.5 plastic Props
Gimbal: Quanum Nova Q-2D
TX& Rx: Frsky TARANIS with 8 ch. Telemetry Rx

AUW = 1.6 kg

During Yaw stick movement weather it is Right or Left  my quad looses Height in both GPS and Atti. Hold mode what is the reason for that Please Help :help: :help:

Here are the parameters which i had set in DJI assistant software

(Sky Surfer V2 , Tiger Trainer MK III nitro , Arising Star nitro, Beetle QuadCopter ,Futaba T6 EX  Tx , Q450 Quadcopter with DJI NAZA M, JR XG 6 Tx , Techone Arrow 3D, Extra 300s 3D, Lil Ripper 3D foamy,  LH X1mini quadcopter, HJT EPO Quadcopter,Funtana 3D,FLYGUY 46" Superman, F-35 Jet, Mig-25 Foxbat Jet,    Frsky TARANIS PLUS TX , FT VERSA WING ,RC Flying Eagle,FT Spear wing, FT GUINEA PIG TWIN MOTOR, DJI Phantom 4 PRO, DJI MAVIC PRO,TBS,  5" Racer Quad, TARANIS Qx7,I )

ashimda

#1
March 03, 2015, 10:43:03 AM
Try bumping up the vertical gain.

SideWinder

#2
March 03, 2015, 10:54:36 AM
1)It can be that your stick is too sensitive such that thr goes up and down when you yaw. So introducing a dead band or throttle curve or expo etc can help. Also set thr mid point correctly.
2)Irregular frame shape/CoG can also cause the phenomenon.
3)Too much AUW.
4)OR inappropriate gains.

Does your quad lose height in stabilize mode while yawing?

Edit: Wow thats heavy setup for those motors on 3S. You can try removing the gimbal and check if it exhibits same issue.

sooraj.palakkad

#3
March 03, 2015, 04:08:56 PM
Quote from: SideWinder on March 03, 2015, 10:54:36 AM
Edit: Wow thats heavy setup for those motors on 3S. You can try removing the gimbal and check if it exhibits same issue.

Sidewinder, sir ,AUW is not that heavy for those motors (2216 - 800Kv) - these generate enough thrust with 11 or 12" prop on 3S .

As Ashimda sir said, try increasing the vertical gain . (For easy in tuning, link any of your pots to vertical gain tuning - so that you can actually tune at field with out help of naza assistant. )
RC Hobbyist and an Aerial Cinematographer..

Dr. Abhishek Agrawal

#4
March 03, 2015, 04:20:50 PM
Problem solved thanks ashimda, sidewinder, sooraj and RC PRODUCT MEHUL BHAI   :salute: :salute:
(Sky Surfer V2 , Tiger Trainer MK III nitro , Arising Star nitro, Beetle QuadCopter ,Futaba T6 EX  Tx , Q450 Quadcopter with DJI NAZA M, JR XG 6 Tx , Techone Arrow 3D, Extra 300s 3D, Lil Ripper 3D foamy,  LH X1mini quadcopter, HJT EPO Quadcopter,Funtana 3D,FLYGUY 46" Superman, F-35 Jet, Mig-25 Foxbat Jet,    Frsky TARANIS PLUS TX , FT VERSA WING ,RC Flying Eagle,FT Spear wing, FT GUINEA PIG TWIN MOTOR, DJI Phantom 4 PRO, DJI MAVIC PRO,TBS,  5" Racer Quad, TARANIS Qx7,I )

sooraj.palakkad

#5
March 03, 2015, 04:27:23 PM
Quote from: agrawalabhi24 on March 03, 2015, 04:20:50 PM
Problem solved thanks ashimda, sidewinder, sooraj and RC PRODUCT MEHUL BHAI   :salute: :salute:

If you post How you solved this problem , it would be helpful for others who come across similar issue.
RC Hobbyist and an Aerial Cinematographer..

Dr. Abhishek Agrawal

#6
March 03, 2015, 04:30:40 PM
Increased Vertical Gain from 120%to 160%
(Sky Surfer V2 , Tiger Trainer MK III nitro , Arising Star nitro, Beetle QuadCopter ,Futaba T6 EX  Tx , Q450 Quadcopter with DJI NAZA M, JR XG 6 Tx , Techone Arrow 3D, Extra 300s 3D, Lil Ripper 3D foamy,  LH X1mini quadcopter, HJT EPO Quadcopter,Funtana 3D,FLYGUY 46" Superman, F-35 Jet, Mig-25 Foxbat Jet,    Frsky TARANIS PLUS TX , FT VERSA WING ,RC Flying Eagle,FT Spear wing, FT GUINEA PIG TWIN MOTOR, DJI Phantom 4 PRO, DJI MAVIC PRO,TBS,  5" Racer Quad, TARANIS Qx7,I )

ashimda

#7
March 03, 2015, 04:32:35 PM
Your welcome.

SideWinder

#8
March 03, 2015, 05:50:33 PM
Quote from: sooraj.palakkad on March 03, 2015, 04:08:56 PM
Quote from: SideWinder on March 03, 2015, 10:54:36 AM
Edit: Wow thats heavy setup for those motors on 3S. You can try removing the gimbal and check if it exhibits same issue.

Sidewinder, sir ,AUW is not that heavy for those motors (2216 - 800Kv) - these generate enough thrust with 11 or 12" prop on 3S .

Because he is using them with 10" on 3S(read first post), producing about 900gms approx thrust totaling to 3.6kg thrust. The 2:1 ratio for hover would come around 1.8kg in this case, so his AUW of 1.6kg approx would leave very less margin for a peppy flight. Copter should achieve hover between 30-40% throttle for an ideal FPV flight.

However he has the option to prop up if frame permits or use 4S, which may change the gains.
Print
Go Up Pages1
User actions