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SAB Heli Division 630/700/770 SAB Heli Division 630/700/770 - Goblin Helicopters Factory Support


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Old 05-03-2012, 07:15 PM   #1
SKYQUEST
 

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Default Servo Horns & swash leveler<--which?

Man...I'm building my Goblin and I'm at the point where you get your servos set-up and installed. I thought I was going to be able to use the Align straight horns w/ my ds610's but the shortest hole is about 20mm's...the book clearly states 16-18mm's...I guess I have to wait until tomorrow when I can get to the hobby shop? Or can I use these slightly longer horns and continue my build? I do have to go to my LHS for the JR tail servo horn, deans connectors, trex 700 swash leveler (this will fit if I remember reading this correctly somewhere, right?)

Let me know if you know.

I'm just going to assume not to use the 20mm align horns...
I just want to continue w/ this build but you really can't until this step is done it seems...If I put the tail together & etc, I wont have room really to organize the wires / electronics like I do now...
AHH! Its killing me to just stare at it all half assembled. (lol)
Still need a speed controller and motor anyway (motor is tomorrow...a quantum 530kv one too.) Oh, the LiPo's are after everything else is done too . Plus, I have to learn how the skookum sk-720 operates as well. (I know other systems like beastx, etc.)
Ok, time to be bored now....
*sigh* (I have no patience )
Guess I'll read the skookum manual.
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Old 05-03-2012, 07:56 PM   #2
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Ignore the manual, it has no idea what FBL unit you will run. The best geometry will be determined by the FBL unit.
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Old 05-03-2012, 08:36 PM   #3
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You can always drill a small hole in your servo arm at 17mm (given that it's plastic). Then just screw your ball into it. Make sure you drill a hole that is slightly smaller in diameter than your ball stem. If they are metal that you have, I don't know what you could do.
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Old 05-03-2012, 08:49 PM   #4
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How would you determine how far from center the balls have to be?


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Ignore the manual, it has no idea what FBL unit you will run. The best geometry will be determined by the FBL unit.
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Old 05-03-2012, 08:50 PM   #5
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Every FBL unit has a geometry it likes, you have to start somewhere and tweak it to suit.
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Old 05-03-2012, 09:10 PM   #6
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The Align plastic horns you have may do the job as is or you can dill as Justin suggests, but I don't trust the flexy plastic on the direct to swash setup of the Goblin.
The Mikado arms work really well on this heli, very high quality.
Your Align servos will take these with the Futaba spline configuration.
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Old 05-03-2012, 09:40 PM   #7
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I used Seacraft lightweight arms that had 17mm spacing and they worked fine with the Vbar.
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Old 05-03-2012, 11:07 PM   #8
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Thanks guys! I'm going to see what my LHS has after work. If he has nothing, I'll use the 20mm hole on the Align plastic horns I have.
(I don't trust the strength of the hole I would have to make via drilling...the 2 holes they give you are re-enforced plastic wise anyway.)
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Old 05-04-2012, 05:18 AM   #9
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Is align servos futaba spline?? Get some mikado horns 17MM and 20MM hole, i use the 20MM hole anyway now
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Old 05-04-2012, 06:21 AM   #10
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I found some Hanger 9 metal servo arms at the LHS. The spacing on the last hole was just right.
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Old 05-04-2012, 10:29 AM   #11
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Ill be using cgy750. Anyone using this system mind sharing what size horns you are using?
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Old 05-04-2012, 11:52 AM   #12
fbdave
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Just starting my Goblin build. I'm using the Torq servos from Outrage. Will the servo horns supplied the these servos work? What spline are they? Thanks.
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Old 05-04-2012, 12:39 PM   #13
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I use this perfect for Vbar set up.
H1011-R Quick UK Long Half Servo Arm
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Old 05-04-2012, 12:50 PM   #14
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The torq servo horns will work as long as you do not mind cutting them down a bit. Use the X shaped horns with the ball mounted to the arm that has the "O" on it. Cut the others off close to the center and sand it smooth. If you do not cut the arms off close to center they will not allow for full deflection. I prefer to use the torq arms because they fit tighter than the futaba.
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Old 05-04-2012, 01:28 PM   #15
SKYQUEST
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Quote:
Originally Posted by integy2 View Post
I use this perfect for Vbar set up.
H1011-R Quick UK Long Half Servo Arm
What a sexy pic!!

I'm going to my LHS after work...See what he has. Going to bring my servos and manual.
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Old 05-04-2012, 01:29 PM   #16
SKYQUEST
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What about the swash leveler...trex 700 swash leveler ok?
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Old 05-04-2012, 04:50 PM   #17
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Quote:
Originally Posted by SKYQUEST View Post
What about the swash leveler...trex 700 swash leveler ok?
The true blood trex 700...yep thats the one I used.
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Old 05-04-2012, 06:31 PM   #18
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Man...My LHS had DUBRO hi strength horn sets and the base of the horn is way too big to fit the servo in to the Goblin.
I'm going to just use the Align horns @20mm's...If it seems awful, I'll just change it to what SAb recommended. This is what was holding my build back...now it's the 12 bolts SAB doesn't supply for the servos
Oh well...I'll just return the 2 other packages of servo horns to my LHS and get the screws I need tomorrow.
Oh well.
I need to finish doing a couple of things on my trex 600 anyway so I can fly tomorrow.
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Old 05-04-2012, 06:35 PM   #19
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Sorry to hear that. I know it is aggravating when something so simple holds up everything. I almost bought those DuBro before I found the Hanger 9 metal ones. I'm glad I didn't. BTW, my kit came with the screws for the servos.
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Old 05-04-2012, 06:44 PM   #20
SKYQUEST
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Quote:
Originally Posted by rcmike View Post
Sorry to hear that. I know it is aggravating when something so simple holds up everything. I almost bought those DuBro before I found the Hanger 9 metal ones. I'm glad I didn't. BTW, my kit came with the screws for the servos.

Which bag? I'm at bag 13 and there are no servo screws....not even a bag number indicating which or where they are. There def isn't a bag w/ 12 hex screws...no good...grrr! Maybe the next bag?...gota look
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