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Post by Dr. Evil on Mar 6, 2012 9:06:55 GMT -4
Not sure if this is helpful but here's a pic of mine. I think the only diff. is that I have the earlier verson of the bell crank arms.
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Post by Valkman on Mar 6, 2012 9:17:11 GMT -4
That's funny I checked to see if they where the wrong way around and they were not. But after checking again here it looks like the are. www.helifreak.com/showthread.php?t=163451I already checked both my 600 manuals and they have the same as mine and Dr Evil's. Just a thought.......if you swapped around the servo so the wheel is on top it may give you the extra grip on the links although check to see if the canopy fits.
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Post by osidak on Mar 6, 2012 11:27:36 GMT -4
Ok I am getting frustrated here - I swapped the bell cranks from side to side - I put the linkages back to 41mm and tried it - not even close - The picture below shows what it looks like with linkage arms set to top - 39.3 mm bottom - 43mm (stopped as there is not enough threads in the ball end at that point) So I flipped the servo over as Valkman suggests and reset linkage to 41mm top and bottom The way the arm is designed there is no way I can get the output side of this arm between the elevator servo mounting holes as suggested by the PO and keep my linkages equal length as shown in this photo Actually after playing with it more I cannot see a way to keep both linkage arms at the same length period
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Post by mainblades (Barry) on Mar 6, 2012 12:27:23 GMT -4
In your top pic, Center the bell crank in between the elevator servo mounting holes. On the servo wheel, all rods to the bell crank have to be at 90 deg to each other. Your servo wheel in that pic is not 90 deg to the bell crank balls. That help? Barry When i get home tonight i will post a pic of mine.
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mike
ROOKIE
Posts: 8
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Post by mike on Mar 6, 2012 12:56:30 GMT -4
Osidak
Did you get the super combo kit. I just checked mine and my bell cranks are polished aluminum. I got the super combo kit and measured my bell crank and it is 39mm long. Your bell cranks are black is it made of plastic or aluminum. I also looked at dr evils and his are different than mine. So with the same 600 size model there are 3 different bell cranks. I am by no means an expert but I have seen three different setups with these bell cranks in align manuals.
Mike
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Post by osidak on Mar 6, 2012 13:23:18 GMT -4
I got the super combo kit -
the bell cranks are indeed black aluminum - do you have a link for that align manual as the one I downloaded as a "clarification" manual is showing the same as the manual that is linked to that kit
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Post by osidak on Mar 6, 2012 13:42:55 GMT -4
Ok - so I played some more trying to take into account what mainblades brought up I ended up with these measurements Top 40.19mm Bottom 37.4mm Getting the balls on the servo arms as close to 90 degrees from the balls on the bell crank and still getting the servo arm on the splined shaft It is my understanding you want both top and bottom linkages the same Below is a snap of what it currently looks like Looking at the picture you can not tell but the output ball on the bell crank is centered between the two holes. From a canopy stand point I really need to turn the servo back the other direction as I do get rub in this orientation. Again I appreciate all the help. Normally I am very adept at building things but in this case with it being my first heli period I am not entirely sure of what I am doing in the first place
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Post by osidak on Mar 6, 2012 14:09:42 GMT -4
One more snap - On the left side of the heli I left the servo in it original configuration (wheel on the bottom) - I set up the linkages to keep the output ball on the bell cranks centered on the servo mount this time I got a top linkage of 41.74mm and a bottom linkage of 44.3mm So the threaded rod which per the manual should have measured 50mm without ends actually measures ~ 47mm - that leaves just 1.3mm in each end and that I would not feel comfortable with trying to fly so here is the picture of the other side
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Post by Valkman on Mar 6, 2012 16:10:15 GMT -4
So your back to square one! You also mentioned you have notchy bearings . Why don't you give RCA a quick call tell them you were on the lounge and you have faulty bearings and short links. I'm sure they will sort you out pronto. If they are short and wrong why waste more time?
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Post by osidak on Mar 6, 2012 17:15:53 GMT -4
That can be done but I can probably just stop by the LHS if all it is are short links
that being said, should the top and bottom links not be equal in size? Why are my measurements so different from both the 600E and Align 600ESP manuals?
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Post by Valkman on Mar 6, 2012 17:32:23 GMT -4
Yes they both should be the same size. One link is 44.3 One link is 41.74 I persume the servo and the bell arm is straight up. 44.3 - 41.74 = 2.56mm 2.56 / 2 =1.28mm 1.28 + 41.74 =43.02 44.3 - 1.28 =43.02
Going by what you are sayig..... 43.02mm will give you even links. Which is 2mm larger than spec and will leave you 2mm thread on each link. Going by your 47 mm links. Its getting late here so maybe I'm wrong and the brain is gone! Maybe someone here that has the same bell arms will measure theirs for you. Send them a PM.
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Post by Dr. Evil on Mar 6, 2012 18:24:17 GMT -4
That can be done but I can probably just stop by the LHS if all it is are short links that being said, should the top and bottom links not be equal in size? Why are my measurements so different from both the 600E and Align 600ESP manuals? I will try to help you out when I get home later.
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mike
ROOKIE
Posts: 8
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Post by mike on Mar 6, 2012 18:34:35 GMT -4
I am going to use the ESP manual, but the cf manual which is belt driven tail has the bell rank reversed and the links on the outside of the servo. Do you think you may have grabbed shorter control rods out of your kit by accident when assembling. Just a thought
Mike
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Post by osidak on Mar 6, 2012 19:10:46 GMT -4
Thanks Dr Evil
Mike - I thought that and I went back through the manuals and checked where I would be making linkages and nothing would have been close - besides I measure them before grabbing them to make sure I didn't use the wrong ones
Called the LHS on the way home and they had few 600 parts so looks like I will placing a call to RCA in a moment
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mike
ROOKIE
Posts: 8
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Post by mike on Mar 6, 2012 19:23:01 GMT -4
Osidak,
I'm in the same boat as you now the links are suppose to be 50mm thread end to thread end. Mine are 47.2mm so what they have so I will have to call RCA as well it has to be in the latest run of kits having the wrong size links. This kinda sucks as I was fixing to start building it gues I will go get 600 links and ball links to be safe.
Mike
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