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Mar 21, 2015, 07:57 PM
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For everyone with servo jitter.
Servo Jitter - Solution (2 min 52 sec)


I just installed the turnigy 5A ubec with the ferrite core and the jitter seems to be completely gone. It's been poring all day so I can't go fly it but as soon as I do I'll give an update
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Mar 21, 2015, 08:30 PM
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Quote:
Originally Posted by sbstnp
Both are kind of big for this frame, and you probably want hotter motors, as 1200kv/1400kv would require 8 inch props.

Look for around 1900-2300kv, 2204/2206 size, those would be best.
But the stats on the DYS 2208 1400KV say with 14.8v and a 6050 prop I can get 640g and only uses 9.8a
Mar 21, 2015, 11:28 PM
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Azgauth's Avatar
noob question here. What's the difference of having an analog servo to a digital servo for the trifecta? thanks!
Mar 21, 2015, 11:35 PM
Slideways at warp speed.......
kiwi_craig's Avatar
yippee ! we have hover. smooth and nice controllable flight............. big thanks to all the good thread info here guys. had the throttle setting pegged back to 50% to tame things down.......

now we can mover forward and get some air under the rotors !
Mar 22, 2015, 01:50 AM
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sbstnp's Avatar
Quote:
Originally Posted by heeroyuy241
But the stats on the DYS 2208 1400KV say with 14.8v and a 6050 prop I can get 640g and only uses 9.8a
Ah, 4S, that makes sense. I hope you do have flying experience, cause it will be ballistic with those motors and 4S You will also need carbon fiber props, look a few pages back I posted a link for some 6055.

Good luck
Mar 22, 2015, 01:55 AM
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sbstnp's Avatar
Quote:
Originally Posted by Azgauth
noob question here. What's the difference of having an analog servo to a digital servo for the trifecta? thanks!
Digitals in theory should be better, higher refresh rate, better resolution, etc.
Especially good when it comes to YAW on a tricopter, you will have many many small corrections going on all the time.
Mar 22, 2015, 02:04 AM
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sbstnp's Avatar
6055 CF props., they needed just a hair of balancing.

Today I'm gonna replace the servo with a 929MG digital and see if I can up the PIDs.
Mar 22, 2015, 02:19 AM
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combatxe2's Avatar
Not sure how many of you actually fold your trifecta fully but I thought I would share this. I decided to strip mine for routine checks and found the rear ESC wires insulation striped to bare wire were it had been rubbing on the frame when folding and unfolding.

Luckily caught it before it sorted in flight.

Won't be folding the rear motor from now on........
Mar 22, 2015, 04:13 AM
If it flies.....I can crash it
Quote:
Originally Posted by sbstnp
6055 CF props., they needed just a hair of balancing.

Today I'm gonna replace the servo with a 929MG digital and see if I can up the PIDs.
Where did you get them from?
Mar 22, 2015, 04:25 AM
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sbstnp's Avatar
Quote:
Originally Posted by blackbrabus
Where did you get them from?
Hmm, scratch that. It's this below and not a 929MG (but it has a 929MG label on it):
https://www.hobbyking.com/hobbyking/s...arehouse_.html

I also used a 939MG digital which was really nice until I decided to center it and fed it 12V thus letting the magic smoke out.

Fit perfectly, I added a small ferrite ring too (didn't had any issues before, but why not).

No signs of wear/tear from folding the tail in, I only have the KISS 12 ESC which is tiny and sits vertically in the tail section and the servo wires, so it's not crowded at all.

And since today is sunny and wam, I'm going to take it for a spin outside a bit later
Last edited by sbstnp; Mar 22, 2015 at 04:31 AM.
Mar 22, 2015, 07:58 AM
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Quote:
Originally Posted by heeroyuy241
I know this may fall on deaf ears, but I almost have all my parts in for my build

Using bearhug 18a esc
multiwii flight controller
uBlox 6m GPS & compass

I stuck on which motor I want. Goal is to have decent flight time but still be a bit spunky. Can't find enough detailed info on the multi star but the DYS seems like it would be able to do the job if I didn't mind adjusting the voltage

DYS BE220 1400KV
http://www.banggood.com/DYS-BE2208-1...-p-941617.html
or
Multistar 2209 1200kv
https://www.hobbyking.com/hobbyking/s...09_1200KV.html

Any advise welcome!
Hi
Have been doing some testing on 2206 size motors and here is what I am going to use.
RCX 2206 1600Kv
Zippy 1500mah 3S 40C Compact
Afro 12A ESC
Genfan 7x3.8 Composit Prop

At 150g Thrust 1.61amp
200 / 2.34
250 / 3.28
300/ 4.22
350/ 5.26
400/ 6.61
450/ 8.17
500/ 9.63
550/ 10.78
Full 580/ 11.92
Mar 22, 2015, 08:30 AM
Registered User
hi
which servo are you guys using.? I am using recommended servo TGY-9018 MG .and Pain I want to try with digital 1....please help me out to choose the right1...
thanks alot
Mar 22, 2015, 08:49 AM
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sbstnp's Avatar
Quote:
Originally Posted by krackjack
hi
which servo are you guys using.? I am using recommended servo TGY-9018 MG .and Pain I want to try with digital 1....please help me out to choose the right1...
thanks alot
Read the thread, plenty of solutions.
Mar 22, 2015, 09:07 AM
Registered User
Quote:
Originally Posted by sbstnp
Read the thread, plenty of solutions.
Don't mean to be rood but when someone gives a reply of Read the thread, plenty of solutions. and you will find the answer. THAT IS THE MOST STOOPED THING. over 2000
posts. Come on get real.
Mar 22, 2015, 09:39 AM
Registered User
I've read all 142 pages over the course of the past 4 days... It consumed my life... lost my job... my wife is leaving me... I kid but its gets rough. So much info!

As far as digital servos go it looks like everyone basically agreed on EMAX-ES09MD.
All metal (except for one gear which is there for eletrical isolation) and has a gear pack you can buy for just 3 dollars. Link below but you can find lower prices at other places

http://www.banggood.com/EMAX-ES09MD-...r-p-88192.html

Also thanks for the reply Dalef!


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