setup

[Kevin Feil]

Tommy is no stranger to the CGY and there is a lot of us that do and or have run the CGY 750. In regards to the E5's that I have owned and set up, I can assure you if you set the Pitch Links along with the Cyclic to Servo Links per the manual. You will not be off. Like Tommy stated, I would honestly question the lengths of all turn buckles and make sure the lengths coincide with what the manual states. Also make sure that your CGY has been Completley reset ( not knowing if it is used or new of course). Based on looking at the picture you provided, all looks correct, unfortunately it does make it hard to accurately determine this since we can't physically measure the PC links or inspect the machine as a whole. I'm curious of the main shaft also and the length. I know this is a frustrating time for you Anthony but with the help of the Synergy Family, it will get sorted out for sure.   *** you mentioned you installed the main shaft that was New in a Bag, do you have the part number on that very bag? We need to first make sure you did install the correct shaft. Once we establish that, let's move on to the next step. Again I apologize for your struggles, unfortunately buying used machines can lead to some issues, nature of the beast ! I have been through this as well and I have been building Synergy's for over 7 years. Let's inventory the parts in question, main shaft (correct?) PC Links and Cyclic Links are properly measured and reflect what is in the manual.

Best Regards,

Kevin

[Ross Lawton]

Hi Anthony,

You've got a good setup there and once we get it sorted for you it is going to rock!

I have used the CGY750 on the E5 and as Tommy and Kevin has already mentioned the measurements in the manual should get you in the ball park for a good mechanical setup.

I also give a +1 for Tommy's recommendation for the use of the long balls on the swash for the pitch control links with the CGY750, it definately brings out the best in the CGY750.

The one thing i noticed from your picture is that you have turnbuckles and different ball links, the ball links look shorter than the standard Synergy ball links, this could be where your difference in measurements is occuring.

I am away from my E5 at the moment but when i get back i will measure the servo to swash links and the pitch control links ball center to ball center and this should give you a good base line for setting up the turnbuckles and gaining a good mechanical setup.

Hope this helps and let us know how you go.
Cheers,
Ross

[anthony]

thank you , I will change them and see if that makes a difference , I have almost equal throws so I will go with that too
Anthony

[anthony]

ok, thank you , that puts my mind at ease a little, do I need to change all four inner balls or just the ones that connect to the blades
Anthony

[Tommy Wagner]

Just the one going to the blades


Sent from my iPad using Tapatalk

[anthony]

cool I will do that tonight and report back , and thank you again
Anthony

[Rodney Kirstine]

Keep in mind that the measurements in the manual are for the Synergy links and rods.  You are going to have different measurements if those are FBLRotors links.  I know Ralph has all the measurements for using his links and turnbuckles but his are all from linkage hole to linkage hole, not end to end like in the manual.  If the plastic linkages say FBL on them, you can email Ralph at Ralph@fblrotors.com and he can let you know what dimensions you should be seeing.

[anthony]

I did ask that very question in another forum and was told that they were the same that's why I was panicking , it makes sense if they are shorter than the stock ones

[anthony]

ok so I adjusted all the links and have equal movement on the swash , I lengthened the servo to swash and shortened the swash to blade grip each by about 2 mm , aileron and elevator look to be ok as far as setup( haven't actually got there yet) but the amount of collective is still a concern I have +- 14 degrees at 50% swash mix . what is the best way to reduce it , I usually fly with 11 to 12 degrees , and according to the cgy instructions I should be somewhere between 50% to 70% ( nearer 65% I think is optimum) the only way I can think of lowering the collective is to use servo endpoints but then I will lose resolution , or I could use a different pitch curve to bring the collective down , is there a better way of doing this?
Anthony

[anthony]

ok ignore the last post , i'm an idiot ,. I just re watched david chekas videos and swash rate is the amount of cyclic pitch not collective as I have been thinking,  doh!
Anthony

[Rob Cherry]

don't know where 6mm came from , but I re measured and it is closer to 200 than 202. so is there a difference between the 550 head and the 700 head, the only difference I can see is from the swash to the blade grips everything else lines up correctly , but I definitely have to use 32 mm pushrods to get zero degrees at mid stick,
Anthony

The electric model shafts are both the same (Part 305-140), however the E5 head is actually positioned higher than the E7se head when mounted (aligned by the jesus bolt holes).

Late post, just providing insight to the differences between the head blocks if you're still interested.

See attached...

[Dr.Ben/Ben Minor]

With the long balls on the swash inner ring, the Synergy geometry fits the 750 very well. 65% sws rate yields static cyclic in the 10-11 degree range. Pit rate will fall in the mid 50's. REMEMBER that you should only measure cyclic rates in the sws rate screen in V1.4 firmware. The observed throw increases when you leave that screen but should NOT be used as the basis for set up.

Let me know if you need more detail in the gyro set up. Take time to read the set up notes I wrote in the manual, too.

Ben Minor

[anthony]

hi ben
been a while , I got rid of the goblin 630 that this unit was on and got the synergy, much happier with the synergy, its my kind of heli . I will be using the forum posts from last time(run Ryder) to get into the ball park but I'm sure I will have more questions when I get confused again
Anthony

[Dr.Ben/Ben Minor]

Anthony,

It'll be way better with a Synergy because all the "numbers" fit the 750 sweet spot with the long balls on the inner ring. All you pretty much have to do is fine tune the D gain and ele compensation and set rates to taste. You won't have issues with funky wobbles and shudders.


Ben Minor