V-tail...

[TruckBasher]

Eric (DialFonzo) referred me to Luis (myRCBuild) I email them directly. But Luis has a website and can order directly. Hope you get yours soon.

I have to build this cause Luis gave me same extra plates to try with GoPro and I have to prepare the small one for Nigh Flying.

[TruckBasher]

I just did a quick test. Disclaimer, I havent read thru the KK manual. I only guessed the prop rotation based on Y4 mixing from http://www.kkmulticopter.kr/ and compared it to my CC OP VTAIL. Finally without knowing how to use LCD to tune PID or use the pots on board I decided to pull the trigger . Quite impress without doing anything it tried to level itself. This is using Daniel's KK board + MEMS.

You can even see the wires aren't even tied up yet and zipped ties were not cut.

I just realize after landing the vtail, I only know how to arm disarm other than that I dont know anything, tune calibrate or whatever for KK board still it flew hahaha

[TruckBasher]

NOt ready yet and sadly working this Wed till very late

I still need to fix the lights and tune this baby.

Which reminds me, any KK experts out there what is the difference on the pots and changing PI via LCD. I also noticed on LCD if I changed Pitch, it will take affect on roll and vice versa but VTAIL dont work like that is there a way to change them independently or POTS is the way to do it?

[TruckBasher]

Thanks for this.
Yup ideally that is correct, that is what I did on the MWC/NAze32 and the OP CC custom mixing but somehow can get much on how things are in KK. Seems this mean you cant change them individual on P/R. I guess I will try and find the compromise between P/R.

[edwin3162]

Hi Jeff, told you KK is very stable and super easy to set-up . By default Dan's kk board all pots were disable, u can only adjust by using LCD at least that's what I do on my KK+. Normally we hardly adjust any gyro gain on rudder just keep as default but only need to adjust pitch & aileron when you need more agility on acro mode.

Regards,
Edwin.K

[TruckBasher]

Thanks Edwin, the YAW i think I need to lower its so agile just slight movement on stick is like crazy

But I think this one might be put down a bit....my other multi is being built now the replacement for my x650

Will let you know how it goes and I hope to get the VTAIL up and running next next wednesday for night fly if I am free lol

[edwin3162]

Well said Amas . To all new flyer my advice is always - Go read a lot from forum and join flying grp ask a lot of question, build your first multirotor cheap and light then go fly and crash then fix, I see many new flyer started from expensive set-up($500+ enough for me to build 2 sporty quad...), after 1-3 mths MOST OF their kit ended up in market place for sale...Ask yourself if you ever push your stick hard enough(in rate/menu mode) to learn how to fly your multirotor in proper way? imo after 2/3 mths if you still depend on auto level just hovering around slowly then you are doing something wrong and then you will start thinking the multirotor is boring as hell...

Regards,
Edwin.K

[TruckBasher]

KK board help, just want to check with you if this behavior is suppose to be normal on VTAIL FW for KK board. Daniel maybe you can comment

if you look at 9sec and 22sec you will notice when I try to yaw there will be a delayed roll. Something like what you do on a plane when banking but with delay.

Roll/Pitch P=18 I=25
Yaw P=22.5 I=35

Sometimes this results in unwanted climb or descent, I havent tried it during forward flight but it dont feel right.

[TruckBasher]

Ok I found something interesting. This is what I followed for motor orientation and prop direction



since I was thinking the delay roll effect was due to rotation of the blades I decided to reverse the blade rotation on the tail (motors 3 and 4) without changing the motor arrangement. now it yaws a little tamer and better. the roll effect is just a tad and barely notice. I will try to tune the PID maybe reset it first.

[TruckBasher]

forgot cant edit on DH:
EDIT:
" the delayed roll effect was due to rotation torque of the motors "

[MultiRC]

Did you download the read me file of the XXontroller 1.6i?

It has the setup info

[TruckBasher]

Thanks Daniel
Yup but it doesnt really tell you anything for vtail

V-TAIL
Front-Left
(CW/CCW)
Front-Right
(CCW/CW)
Back-Right
(CW/CCW)
Back-Left
(CCW/CW)

while on the topic I am interested on the looprate, is it the looprate of the atmega or the refresh rate of motors? If motors can I set it to 400?

[TruckBasher]

I wish there is really edit botton

EDIT:

V-TAIL
Front-Left
(CW)
Front-Right
(CCW)
Back-Right
(CW)
Back-Left
(CCW)

this is on the file

but it should be

Back-Right
(CCW)
Back-Left
(CW)

so the rotation torque doesnt counter the direction of thrust

[MultiRC]

NOt ready yet and sadly working this Wed till very late

I still need to fix the lights and tune this baby.

Which reminds me, any KK experts out there what is the difference on the pots and changing PI via LCD. I also noticed on LCD if I changed Pitch, it will take affect on roll and vice versa but VTAIL dont work like that is there a way to change them independently or POTS is the way to do it?

Hi,
The default PID usually work. For the KK Plus with XXControllers firmware, just need the 2 basic setup:
1 Stick Calibration/centering
2 ESC Calibration

With the above done, your model should fly up straight. You use the LCD meu to guide you.

The PID settings also using the LCD. and Pitch/Roll are tie together.

Readme file is a must

[TruckBasher]

oh ok i think Daniel replying to my old post hehehe. Daniel, TX calibration done and ESC no need cause I am using flashed ESC. Let me know if you can comment on

while on the topic I am interested on the looprate, is it the looprate of the atmega or the refresh rate of motors? If motors can I set it to 400?

Also you may want to changed the VTAIL rotation on doc this should be correct

V-TAIL
Front-Left
(CW/CCW)
Front-Right
(CCW/CW)
Back-Right
(CCW/CW) << Back-Left
(CW/CCW) <<