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Servo Synch

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Old 10-09-2007 | 08:07 PM
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From: Gurabo, PUERTO RICO (USA)
Default Servo Synch

It's this possible?

I want to use the servo sync feature to make sure two separated elevator halves are aligned. to achieve that, I will temporarily connect the two separated halves together (wood + clamp). Then I will tell Weatronic to sync one servo with the other. Once that's finished, I will take the clamp off. At that point, I will expect the halves to be perfectly aligned at all defined positions.

Thanks
Edgar

PD: Assuming it's possible, is there any way to retain that information if I change the output to a different channel? The application will be to change from elevator only to taileron function
Old 10-11-2007 | 06:30 PM
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Default RE: Servo Synch

That should work fine. It is a smart way of doing it.
Just make sure before you begin, that you are within 5 % of each other and that you have several points defined on the master servo (up to 16 segments) and that the second servo is called out as a slave servo. I think you can actually leave them grouped like this afterwards.

Let me know how it works,

Thanks, Gerhard[8D]
Old 10-11-2007 | 10:28 PM
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Default RE: Servo Synch

Thanks Gerhard. Will give it a try once I reach that stage of the assembly.

Regarding my PS question. If I want to move from elevator only to Taileron, I need to assign a different channel to the second servo. At that point is no longer 'slave' to the elevator master servo. Is there a way to retain the 'corrections' done when it was 'slaved'?
Old 10-12-2007 | 11:41 AM
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Default RE: Servo Synch

Good question.
If you do a master slave relation between the two servos and run a synchronization, the slave will adjust to compensate for its differences in linkage etc. If you go back in and then remove the bond by selecting it to be a single servo again, it will retain the created curve. Now you should be careful when you go in and edit the curve. You should only move it as whole curve with the move curve button to adjust the servo center point. which should now be at the same spot as the spot for the elevator setup. Notice that any trim necessary for aileron will of course throw a wrench in. Any adjustments should always be done with aileron trim set to zero. Let me know how it works for you.

Another tip on how to use curves that you don't want to create over and over again. you can simply use the Master - slave relationship to transfer the curve from one servo to another. You can transfer it to an unused servo outlet and break the bondage afterwards. Now you can store this curve or even more others this way and create your own catalog of curves and transfer them by linking a master slave relation and after releasing them, you still have the curve in there.

thanks

Gerhard
Old 12-24-2007 | 01:18 PM
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Default RE: Servo Synch

Hi,

I Hope you can help me to straighten this out re synch-ing
I'm trying to synch an Aileron surface with 2 servos (Typical 100cc 3D Plane).

The Questions are:
(1) Should I set the 1st servo as MasterGroup 1 and the 2nd servo as MasterGroup2 then synch ?
(2) Or should I set the 1st servo as MasterGroup 1 and the 2nd servo as SlaveGroup 1 ?
(3) Should I repeat the (one of the above set up) for the other aileron half ?

(I have never tried the synch function and am worried burning the servos during synch-ing)

Hope this message finds you well and Merry Xmas !

Aris Kamdani
Jakarta Indonesia


Old 12-24-2007 | 02:12 PM
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Default RE: Servo Synch

Hi Aris,
1. Before you do the synchronization of the ailerons you want to make sure that the servos are working in the same direction when connected and also have about the same travel on the surfaces. You can do this by connecting them mechanically one at a time and make sure they have about the same travel and mid point.
2. You make a choice of which servo will be the master and which will be the slave. E.G. left side master 1 and slave 1 - right side master 2 and slave 2. If you have a stronger servo, then you use that as the master. Please also refer to the manual. You can create up to 16 segments in the curve of the master servo. The synch feature will do a synch at every point. After the synch, the slave servo will have a similar curve in it. You can also create these points on a straight line. It will help to compensate for differences between the individual servos. One tip, If you call all involved servos to be a slave of the first servo, it will duplicate the curve into the configuration and keep it even after you rename it to master 2.
3. Once done with both ailerons, you connect everything mechanically and hit the synchronization button. It will run through the curve one side at a time, returning to middle again at the end.

Once mor I want to point out to look at the instructions as well, as they go through this process as well.

Thank you and Merry Christmas to you and your family,

Gerhard
Old 12-27-2007 | 11:58 AM
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Default RE: Servo Synch

Hi Gerhard
Many thanks for the valuable advice
Will try the set up over the weekend and update you with the outcome
Cheers
Aris
Old 01-02-2008 | 09:41 AM
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Default RE: Servo Synch

Hi Gerhard,

Happy New Year

I tried Sync-ing .

I set up one channel only for aileron (Master&Slave Group 1 and 2)

When I synched Master&Slave Group 1 the servos paused with some tiny adjustment on both travel ends (I suppose the servos are trying to match the travel) >>> I guess this is the way it suppose to happen...

However on the Master&Slave Group 2 the servos travelled without pausing on both travel ends.

For curiosity I switched the position of the Master&Slave combination from left aileron to the right aileron and vice versa.

Then I tried synching again. The reverse situation now happened, that is the pause now is happening on the Master&Slave of Group 2 !

Q: Is this because the two servos travel combination on one side of the aileron has more equal travel match ? or what is going on?

Your advice is truly appreciated.

Cheers
Aris Kamdani
Old 01-02-2008 | 01:00 PM
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From: Scappoose, OR
Default RE: Servo Synch

Hi Aris,
Please send me your configuration software, so I can look at it. Here is my email: [email protected] . I will look at it and see what you are doing.

Thanks,

Gerhard


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