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Nexus 30 help

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Old 05-05-2006, 01:56 AM
  #51  
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Default RE: Nexus 30 help

Who has these V-Blades ? Are they Carbon Fiber ?
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Old 05-05-2006, 02:11 AM
  #52  
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Default RE: Nexus 30 help

Hope ya don't mind, I put that great pic on the front page of my Heli Yahoo Group...
http://groups.yahoo.com/group/venomnightranger3dgroup/
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Old 05-05-2006, 02:28 AM
  #53  
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Default RE: Nexus 30 help

I think someone was looking for a Nexus frame a while back, here's one on ebay...
http://cgi.ebay.com/Kyosho-nexus-30-...QQcmdZViewItem
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Old 05-05-2006, 09:03 AM
  #54  
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Default RE: Nexus 30 help

VBlades are high dollar, high performance carbon fiber blades. http://www.vblades.com
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Old 05-05-2006, 11:33 AM
  #55  
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Default RE: Nexus 30 help

back when i got my 550's i had to order them from Campbell because they weren't selling via any distributors and a sponsored pilot i flew with at the time gave me the info. you can get them from several online retailers now and even a few LHS carry them. they are the best of the best, perfectly balanced just bolt em on and fly.


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Old 05-05-2006, 11:54 AM
  #56  
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Default RE: Nexus 30 help

They must be expensive. They don't give you a price... LOL
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Old 05-05-2006, 12:01 PM
  #57  
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Default RE: Nexus 30 help

Oh man !!! I can but 4 sets of stock type blades for $105.00 !!! Im just at the hovering stage, so I don't think I need to spend that kind of cash just yet.
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Old 05-05-2006, 12:25 PM
  #58  
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Default RE: Nexus 30 help

when you do get to that point, get a set, you can't beat em.


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Old 05-05-2006, 12:51 PM
  #59  
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Default RE: Nexus 30 help

When I deserve them. LOL
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Old 05-05-2006, 01:11 PM
  #60  
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Default RE: Nexus 30 help

anyone with a heli deserves them, IMO even a beginner can benefit from them, they are ALLOT more stable then woodies even in hover, but i do understand the dilemma of smacking a set of $100 blades

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Old 05-05-2006, 01:35 PM
  #61  
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Default RE: Nexus 30 help

Well, I have been known to munch my BCP now and again, but so far, I havn't let the Nexus get out of shape. Im still trying to get use to it's scary stability. It floats like a ghost, where the BCP is like trying to drive a car with a terribly loose front end, and the rear wheel on black ice. LOL
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Old 05-05-2006, 02:46 PM
  #62  
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Default RE: Nexus 30 help

geeze if you think a Nexus 30 is stable, wait till you get your hands on a 60 sized bird. first auto you do with a 60 after learning on a 30, you'll shoot it back up about 30' when you hit the collective just before sit down. with the V-Blades i can stop my 30's and hold them for just a second prior to sitting down, with the 60s i can start inverted, hit hold, roll once and remain inverted, roll to upright at about 30' and still stop it and do a pirouette before sitting down ever so softly on the skids.

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Old 05-05-2006, 03:14 PM
  #63  
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Default RE: Nexus 30 help

Well, I don't plan on ever gettin that good. Once I get to where I can fly around, I want to do scale like flight and landing. Im not greedy... and im easily entertained...
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Old 05-05-2006, 06:19 PM
  #64  
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Default RE: Nexus 30 help

back in the days of learning i was easily entertained as well. i could do any hovering maneuver there was in 20 knot wind with gusts to 30 and my old shuttle never moved. I'd put the trim for the tail so it slowly pirouetted and fly at least 3 tanks every afternoon (they lasted 25 min back then just hovering with 15% fuel). i did that for over 9 months and NEVER once tried forward flight. there was no such thing as a simulator (heck most folks didn't even have a PC) so it was all just a 'live and learn' experience. when i finely moved into forward flight i found very few instances where i wasn't in complete control because i was in sync with what stick to move to make it do what i wanted it to do.

now i find that i cant stay in a hover for more then long enough to warm the engine up, I've tried to force myself to hover a complete tank and for the life of me i can't do it. it starts with a little side slipping with a rock on both ends then turns into figure eights then next thing i know I'm shooting an auto from 300'

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Old 05-05-2006, 07:34 PM
  #65  
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Default RE: Nexus 30 help

I wouldn't be hovering if I could fly either... I fly great on the sim, but havn't been able to do it with the BCP yet. I have only hovered the Nexus in the yard so far, as I am still tuning, and now have decided to install the new digital servos. It has had a glitch, but I think that may have been the bearings, havn't had the time to play lately... I will soon... I could do it now, but im all tuckered out...
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Old 05-05-2006, 09:44 PM
  #66  
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Default RE: Nexus 30 help

Well, Just did a test session with the Nexus. Fine tuned the blade tracking, and played with a little elect tape on one of the blade tips, and she's pretty smooth. The skids do dance a little in hover, but not too bad, Im just greedy I guess... No more glitching since the bearing replacement, so I guess the stock servo's are fine. I'll put the new digital servo's on another day. Hovered very nicely, but I sure wish I could get the little dance out of the skids. I think it's about the best it's gunna get... It freekin fly's !!! Woooooooooooo Hoooooooooooo !!!
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Old 05-06-2006, 02:39 AM
  #67  
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Default RE: Nexus 30 help


ORIGINAL: Dennis Flora

................ and played with a little elect tape on one of the blade tips,

i think you just found your problem, if your playing with tape on the tip of a blade your throwing the balance off. you blades need to be BOTH balanced and CG'd, then DON'T add or take anything away from them. if you do not CG both blades to each other that contributes allot to shaking on spool up.

kc

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Old 05-06-2006, 03:13 AM
  #68  
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Default RE: Nexus 30 help

I bought a Heli Max Balancer. I had both blades CG'ed and Balanced real nice, but it seems to like the extra tip weight on the one blade. Maybe the new main shaft isnt as straight as it should be, or possibly the cushions are dried out, but the tape seems to correct it.
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Old 05-06-2006, 03:33 AM
  #69  
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Default RE: Nexus 30 help

pull your main shaft leaving the head intact and balance the head, could be your flybar out of balance or it could be the feathering spindle not being able to center due to your dampeners.

as a last resort dial indicate the head, allot of people don't think a dial indicator is necessary for a 30 but they do make them smoother then just bolting everything together by eye.

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Old 05-06-2006, 11:05 AM
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Default RE: Nexus 30 help

The mainshaft and feathering shafts are new from Century Helicopters. I'll put my radar out for new cushions.
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Old 05-06-2006, 02:01 PM
  #71  
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Default RE: Nexus 30 help

unfortunately new doesn't always guarantee straight. it doesn't take much time to yank the head off and check the balance on it, I'd do it if it were mine but if the wobble is acceptable to you then leave it as is, doesn't sound severe enough to be very harmful.

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Old 05-06-2006, 02:16 PM
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Default RE: Nexus 30 help

How do you balance the head. Mine does have a slight vibration even with the blades off. Where do you add weight ? I guess a guy could thread another nut onto the blade grip bolt and try that. What do you do ?
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Old 05-06-2006, 05:32 PM
  #73  
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Default RE: Nexus 30 help

most of the time the head will require flybar weight to balance (plank wheel collars work great, the set screw can be loosened and then slid in/out for correct weight.). the simple way is to pull the main shaft and head as a single unit and lay the shaft on a table edge with the head hanging off and it'll roll to heavy side down. in the midst of all my junk I've got a jig i made up of two thin sheets of aluminum with bearings attached to push the main shaft down into. i had different bearings for different sized shafts.

kc

EDIT: make sure your paddles are the same weight, the flybar is equally centered and then the paddles are equally spaced away from the head. allot of times paddles can be off a turn and cause vibration.
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Old 05-06-2006, 05:58 PM
  #74  
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Default RE: Nexus 30 help

OK, Thanks !!! I don't want to pull the shaft again, but i'll remove the blades, and balance that vibration out that I had before, then start over with the blades. Great info, thanks again !!!
I will be so happy if I can get all the shakes out of it. Gunna see about balancing the head right now... Just fueled er up...
OK, with no blades, it's perfectly smooth now. I didn't have to do nuttin, the bearing must have fixed that... Now to check the blades balance...
OK, I had to remove 1 piece of tape, so now there is only 1 piece about 2" long. I use black electrical tape by the way... Now to bolt the blades back on and see what it does now, here we go...
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Old 05-06-2006, 06:21 PM
  #75  
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Default RE: Nexus 30 help

black electrical tape is not fuel proof and will start to get 'gooey' and fall off. i use the MonoKote trim sheets (adhesive backed) they work great. oh and if you'd be interested, make me an offer on the Nexus in the fuze, I'm contemplating selling it rather then going to the trouble of changing out the battery

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