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Old Jan 24, 2013, 10:05 PM
Multicopter AP centric
mbsteed's Avatar
Canada, AB
Joined Jan 2011
304 Posts
I use these:

sorbothane feet

I create a small hole and then push the bolt through and use a washer and then a nut - one of the feet above and one below the contact point. Works well.
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Old Jan 28, 2013, 07:03 AM
sorry, my english is bad
teramax's Avatar
Austria, Wien, Vienna
Joined Apr 2011
232 Posts
Some questions recieved me by PM but i think the answer could be interresting for others looking at the EVO:

Quote:
Hey found your video on youtube aswell linked to evo thread..

I am thinking about buying evo gimbal and curious did you get it perfectly dialed in? And if yes or eaven 95% what servos and what gimbal controller? Would be awesome to see some on flight footage raw.

How much is the max width of camera? thinking about GH2.

Do you think it should have potentiometer asswell on roll axis?
Puh, thats not easy to answer.

First, sorry no flight videos. The EVO has gone to my development department . We try to find the best Servo configuration.
The Servo could be as fast as posible but in fact that theres a potentiometer involved it is then a little slower as roll.
Where now testing with a 1/1 drive but this takes time.

the Gimbal it selve is when you look at the price one of the best i´ve ever seen and believe me i´ve had a lot.
Dont know the exakt meshuring but with two 16mm tubes you can expand where ever you whant. Thats by far one of the greatest benefits of the EVO.

By looking for a good Servo youre first interrest should be that it has nearly no slope /play in gears.
MKS does a great job here and also some HiTec.

Shure a potentiometer on roll could help bringing both axis at same speed but does it help?
I had best results when diled in with the AutoQuad Flight control.
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Old Jan 31, 2013, 01:52 AM
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Joined Dec 2012
30 Posts
And TwoDee EVO is too big for TAROT FY680 ? Can you send TwoDee EVO to Russia Moscow? Thanks.


Quote:
Originally Posted by ozanozkok View Post
Hi,
You cant use it with fy680 cause its height is more than fy680's space
Evo fits 680 at limit.you can use it with a little expansion to your landing gears(1-2cm)..
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Old Jan 31, 2013, 06:40 AM
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Joined Dec 2012
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Quote:
Originally Posted by RUSSIA View Post
And TwoDee EVO is too big for TAROT FY680 ? Can you send TwoDee EVO to Russia Moscow? Thanks.
with 5 cm expansion it will fit lovely i think



I'll buy mine tomorrow and will update it with my AlexMos gimbal controller and my 2 new brushless motor rewinding by myself.

We'll let you know how it goes 
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Old Jan 31, 2013, 06:54 AM
Ready to fly MRs
Sid3ways's Avatar
Swanton, OH
Joined Jul 2007
5,048 Posts
Quote:
Originally Posted by 7subaru4 View Post

I'll buy mine tomorrow and will update it with my AlexMos gimbal controller and my 2 new brushless motor rewinding by myself.

We'll let you know how it goes 
Exactly what I was going to recommend to Oz. Servos are going to be completely replaced by brushless motors when Alex's controller hits. Brushless motors of course perform 10x better than servos and are a 5th of the cost of a very high end brushless servo that I'd put in.

Oz, modify your mount to accept brushless motors.
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Old Jan 31, 2013, 12:23 PM
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Joined Dec 2012
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It looks nice. Can you post more fotos of it or send foto to my email flymodel@mail.ru. I want to buy it on this week but I have not got the info enough. Thanks.

Quote:
Originally Posted by 7subaru4 View Post
with 5 cm expansion it will fit lovely i think

I'll buy mine tomorrow and will update it with my AlexMos gimbal controller and my 2 new brushless motor rewinding by myself.

We'll let you know how it goes 
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Last edited by RUSSIA; Jan 31, 2013 at 12:29 PM.
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Old Feb 01, 2013, 12:30 AM
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Joined Dec 2012
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Quote:
Originally Posted by RUSSIA View Post
It looks nice. Can you post more fotos of it or send foto to my email flymodel@mail.ru. I want to buy it on this week but I have not got the info enough. Thanks.
hi,
pictures about what ? the Tarot FY680 or the twodee evo gimbal ?
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Old Feb 01, 2013, 09:37 AM
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Joined Dec 2012
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Pictures about EVO gimbal on TAROT 680 (front, left, down...) Pls.

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Originally Posted by 7subaru4 View Post
hi,
pictures about what ? the Tarot FY680 or the twodee evo gimbal ?
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Old Feb 01, 2013, 04:14 PM
Musician-Designer
ozanozkok's Avatar
Türkiye, Istanbul
Joined Mar 2011
463 Posts
Quote:
Originally Posted by Sid3ways View Post
Exactly what I was going to recommend to Oz. Servos are going to be completely replaced by brushless motors when Alex's controller hits. Brushless motors of course perform 10x better than servos and are a 5th of the cost of a very high end brushless servo that I'd put in.

Oz, modify your mount to accept brushless motors.
I will but I need a brushless set for it.I will realise a upgrade module when I found a brushless control set.
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Old Feb 02, 2013, 12:17 PM
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Joined Feb 2012
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I am in progess of tunign G.O. Two issues

1) twicing in tilt axis. Very fast & small back & forth twitch. This makes video unusable. Might be caused also by below 0 temperature, because gets worse during the flight.

Here you can see some of the twiching - http://youtu.be/xCh05y_oIPk?t=1m35s

2) roll axis is difficult to get smooth. I think it has multiple challenges. 1) belt is difficult to get tight enough. 2) More weight (than on pitch) on the bearing will add friction --> no smooth movement

For roll I have used flexible band to have the roll on "another corner of belt" to make it smoother. Somewhat successfull.

Anyone having similar challenges? What is a good fix?
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Last edited by kaakku; Feb 02, 2013 at 12:25 PM.
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Old Feb 05, 2013, 03:27 AM
Musician-Designer
ozanozkok's Avatar
Türkiye, Istanbul
Joined Mar 2011
463 Posts
Quote:
Originally Posted by kaakku View Post
I am in progess of tunign G.O. Two issues

1) twicing in tilt axis. Very fast & small back & forth twitch. This makes video unusable. Might be caused also by below 0 temperature, because gets worse during the flight.

Here you can see some of the twiching - http://youtu.be/xCh05y_oIPk?t=1m35s

2) roll axis is difficult to get smooth. I think it has multiple challenges. 1) belt is difficult to get tight enough. 2) More weight (than on pitch) on the bearing will add friction --> no smooth movement

For roll I have used flexible band to have the roll on "another corner of belt" to make it smoother. Somewhat successfull.

Anyone having similar challenges? What is a good fix?


Hi Kaakku,

First of all, wrong location for camera CG may occur this type of twitces.Be sure your camera located CG on the gimbal.
You can find right CG with this method:
-disassemble the belts
-locate the camera on the tray,when the gimbal comes in balanced position,
-mark the camera monting points
-assembly the belts and tune the belt tensions

Other hand,gain controlls on the gimbal controller are important,you must be sure gains tuned.

if the servo resulutions or torques not enogh,twitches may occur,too.
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Last edited by ozanozkok; Feb 05, 2013 at 03:44 AM.
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Old Feb 05, 2013, 06:21 AM
Triple Tree Aerodrome
heli001's Avatar
Charlotte, NC
Joined Feb 2002
406 Posts
Kaakku,

What servos are you using on the GO Gimbal..?

We are using the reccommended HiTec ones and ours is smooth as glass. Oz is right.....the camera balance is critical along with good fast servos......
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Old Feb 05, 2013, 10:41 AM
Registered User
United States, OH, Springfield
Joined Nov 2012
67 Posts
A little update.

FY680 with Copter Frames TwoDee Evo (1 min 17 sec)
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Old Feb 06, 2013, 06:35 AM
Musician-Designer
ozanozkok's Avatar
Türkiye, Istanbul
Joined Mar 2011
463 Posts
Quote:
Originally Posted by knichefilms View Post
First of all,sorry for wrong bolts.Sometimes we can confuse..

I m glad to see that,you assemblied and mount EVO to your frame,looks good.
This lagy gimbal movement is a problem for all dji owners,they must do something about it.Maybe it will be better with a seperate gimbal controller like multiwii.I m using it sometimes and I like it.
Thank you for video,I hope we will see aerial shots from you
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