View Full Version : SpartanRC DS760 Gyro Review and Setup Vids
MarkWebber
11-18-2007, 05:41 AM
Bruce,
It didn't make the manual but as new compatable servos become available, Angelos adds them on the site for the most up to date listing.
It's a 'two blink' servo:wink: ...760uSec.
mporlier
11-18-2007, 08:46 AM
I flew for the first time yesterday. On the menu, engine break in, tracking and gyro tweeking. It was windy (15-20 mph) and I was flying cross wind all the time. My tail was rock solid while my heli was bobbing up and down like creazy.
I have my gains at 25% on my Fut 6EX 2.4. Is this normal?
Marc
BruceW
11-18-2007, 10:53 AM
GOT IT!! BruceW I tried your suggestion of setting up rate 0 as 0 and rate 1 as 100 (before I had rate 0 as 100 and rate 1 as 0 as per Bob's video) and that seemed to fix the problem. Strange, it really shouldn't matter which rate is 0 and which is 100, as long as there is a range to toggle betweeen, but I am not complaining. The setting of the end points for tail servo throw is a very cool feature. Thanks for the help. I know I will have more questions coming down the line.
Matt
Hey Matt, good to hear. I think you could also have used rate 0 as 100 and rate 1 as 0 and it would have worked. It all depends on which bit you set for normal and stunt. The main thing is you need to be on the lower side of 50 for rate mode if your using the gain as gyro. You'll also want to change it so that the gyro powers up in HH mode.
Thanks for the info about the servo type Mark. I saw an article last night in RCHelimag where they mentioned the 760usec.
Ade_Law
11-19-2007, 03:46 PM
mporlier, on the 6exh is 50% zero gain? 100% 100% gain in HH and 0 is 100% gain in normal mode. (HH and normal might be the other way round)
25 sounds about right as that equates to 50%
Ade
mporlier
11-19-2007, 03:55 PM
mporlier, on the 6exh is 50% zero gain? 100% 100% gain in HH and 0 is 100% gain in normal mode. (HH and normal might be the other way round)
25 sounds about right as that equates to 50%
Ade
On the 6EX it goes from -100% to +100%
mporlier
11-20-2007, 01:40 PM
I have a very noob question:
My piro rate is SLOOOW! So what am I doing wrong?
I have setup the DS760 as per the manual, very easy to do I must admit
Everything works the right way, I can fly well
I have 25% expo and 80% rate (I think I should not have put 80% ?)
EPA 100%
No sub trim
On the bench, full left and full right will go close the touching but no binding
Thank you,
Marc
raptorheli2
11-20-2007, 02:42 PM
Angelos, I noticed that your web site states you support the new Futaba BLS251 but I didn't see it listed in the manual. Can you tell me what type servo it is for the servo configuration mode?
Thanks,
Bruce
the servo you mention is for the 601/611 so it should be treated as a 9251/9256 as thats all it is with a different motor.
I have a very noob question:
My piro rate is SLOOOW! So what am I doing wrong?
I have setup the DS760 as per the manual, very easy to do I must admit
Everything works the right way, I can fly well
I have 25% expo and 80% rate (I think I should not have put 80% ?)
EPA 100%
So sub trim
On the bench, full left and full right will go close the touching but no binding
Thank you,
Marc
turn the rate up from 80 to 100 and if thats not fast enough then adjust the EPA and see how that goes, any issues let us know but the rate is a little low so i'm not surprised it's slow for you.
cheers
Finless
11-20-2007, 02:42 PM
Move up your rudder channel ATV's....
I am at 140 as I want a FAST piro rate that I am use to on a 611.
Bob
MarkWebber
11-20-2007, 06:57 PM
To see what it would be like, I run my endpoints at 150%. There's no shortage of piro speed at that setting on my Trex600:)
Finless
11-20-2007, 08:14 PM
To see what it would be like, I run my endpoints at 150%. There's no shortage of piro speed at that setting on my Trex600:)
Agreed! :smokin:
Bob
ukpaul
11-20-2007, 08:57 PM
Heard this said before, but never quite understood it. If you setup the gyro so you are just short of binding at full left/right travel, then alter your EPA from 100% to more than that, say 140 or whatever, how come the piro rate speeds up & your not then overdriving the servo? If the pitch slider is as far as it can go at 100%, it can't move any more so I'm puzzled how setting to 140% or whatever can make it piro faster. Arn't you then making the servo move 40% further, a bit like setting the dual rate to 140% say?
CompuFoil
11-21-2007, 12:36 AM
I see the 760 is out, but I don't see the 650 anywhere. Is it out yet?
Eric
Finless
11-21-2007, 02:13 AM
Heard this said before, but never quite understood it. If you setup the gyro so you are just short of binding at full left/right travel, then alter your EPA from 100% to more than that, say 140 or whatever, how come the piro rate speeds up & your not then overdriving the servo? If the pitch slider is as far as it can go at 100%, it can't move any more so I'm puzzled how setting to 140% or whatever can make it piro faster. Arn't you then making the servo move 40% further, a bit like setting the dual rate to 140% say?
Rudder end points have NOTHING to do with servo travel on MOST heading hold gyro's!!!! Thats why you have heard that said befor MANY TIMES!!!! Honeslty I get tried of explaining it as this comes up EVERY DAY on forums here.... What really gets me is people wont listen to this and setup properly :arggg:
Bob
LITHIUMSTATIC
11-21-2007, 02:57 AM
Rudder end points have NOTHING to do with servo travel on MOST heading hold gyro's!!!! Thats why you have heard that said befor MANY TIMES!!!! Honeslty I get tried of explaining it as this comes up EVERY DAY on forums here.... What really gets me is people wont listen to this and setup properly :arggg:
Bob
Calm down now Bob.... it's going to be ok.:lol:
Finless
11-21-2007, 03:08 AM
:lolol:lolol:lolol:lolol:lolol:lolol
Thats funny!
Bob
MarkWebber
11-21-2007, 05:12 AM
ukpaul
As Bob said, endpoints don't adjust travel on the gyro. Rather, they instruct the gyro to increase/decrease the piro speed. With the Spartan ds760/650, you adjust the travel once during your setup to teach the gyro your heli's particular r/h and l/h throw limits. Once done, you then adjust the radio to dial in your piro speed.
ds650's should start coming out as soon as ds760 production catches up with demand. Can't keep these babies on the shelf.:thumbup:
Pinecone
11-21-2007, 06:41 PM
I think Bob forgot his meds today. :) :)
But I agree, after answering the same question time after time, when about 10 seconds with search would have gotten the answer.
raptorheli2
12-01-2007, 03:11 PM
the 650 should be about soon folks. spartan are still getting all 760 backorders filled and finishing the PC software.
some other news, alan and danny szabo are on team spartan as is henry caldwell now.
cheers
sookainian
12-03-2007, 10:06 PM
any videos of Alan flying the ds760 on his Aurora ? =)
MarkWebber
12-04-2007, 05:35 AM
I haven't seen a video on the Aurora, yet. Maybe Alan will make us one:wink:
Angelos
12-04-2007, 09:35 PM
The PC software for the ds760 has just been released and is now available to download from our website. There is integrated help for each of the parameters. Simply place the mouse pointer over the edit boxes, menus or sliders and a dialog pops up with the help related to that parameter.
You will first need to update the gyro firmware to version 1.04 which enhances the communication protocol with the PC.
-Angelos
BruceW
12-04-2007, 10:59 PM
Is there a link to the release notes for different versions of the firmware? My DS760 is currently at 1.02 and so far it doesn't look like I need any of the updates. Eventually I'd like to get the connectivity kit just so I have access to tweaking the other parameters.
MarkWebber
12-05-2007, 05:32 AM
Had a chance to play with the new software. Good stuff! I especially liked the mouse-over feature so you know what the parameter you're about to change will do.:thumbup:
BruceW
12-05-2007, 11:35 AM
On another note... Last night I was installing my Futaba BLS251 and needed to add subtrim (20 clicks on JR7202/DX7) to get my horns to 90degrees. The instructions say to have no subtrim but when I compared the centering, operating range and behavior of the servo on the bench in both trimmed and untrimmed positions there seemed to be no difference and the gyro worked as expected in both cases.
So the question is, does adding subtrim affect the operation of the gyro?
xStatiCa
12-05-2007, 11:52 AM
I think the only reason it could matter is if you wanted to use 150/150 ATV to get the fastest pyro rate. If you use trim or subtrim your available range is skewed to one side. Regardless most HH gyros look at the power on trimmed or non-trimmed location to be the tx rudder center point so that explains why you don't see a difference.