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| Blade 450X Blade 450X Helicopters Information and Help |
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Topic Review (Newest First)
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| 07-14-2014 04:44 PM | ||
| xenophobe |
I've had a total of 3 bent shafts out of two different packages from two different sources, all ordered within the last month or two. And they're not horribly bent... I'm not getting a whole lot of vibrations from the last shaft I installed... enough to notice the button wobbling, but the other one from the same package was just unusable. And I know I've had this happen in the past too... probably 4-5 months ago I got some bent shafts. If nothing else is wrong with your heli, it's not horrible... but if you have a slightly off balance main gear, the combination is really bad. |
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| 07-14-2014 09:34 AM | ||
| everydayflyer |
You can see when posts were made. First one 6-29-2014 and last one before yours 11:15PM yesterday. There have been post every since Blade introduced helis of out of the package bent shafts for the 400, 450 , 450X,300x ,300 CFX. IMO that was even a bigger problem as they were assembled out of square and the tail spins very fast on a smaller heli so vabrations are much worse and the tail blades do not even track straight with each other. |
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| 07-14-2014 08:53 AM | ||
| Heli.Maniac |
Απ: New mainshaft .... bent Did you all started noticing out of the box bent shafts recently or is this an old trend? This is quite interesting, reminds me of 130X bent tail shafts that caused all those problems with the tail. |
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| 07-13-2014 10:15 PM | ||
| xenophobe |
Well, I sure hope they hurry up... Two new HH shafts... both bent. This has to be laziness or stupidity on behalf of the manufacturing process... someone is taking a shortcut or being lazy. Some machine operator is doing something wrong and QC isn't catching them... or they all just don't care. Ugh.... |
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| 07-03-2014 10:58 PM | ||
| Pionwave |
Quote:
On the horizon it looks like. |
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| 07-03-2014 08:19 PM | ||
| KiloXray |
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| 07-03-2014 02:54 PM | ||
| RichKnapp |
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| 07-03-2014 10:00 AM | ||
| Nelsonisms | I can't believe Lynx hasn't released a main shaft for the 450X. They've done all the other ones (spindle & tail). I'd gladly buy one from them if I could be more certain I'm getting a good one. While they're at it, if they would make us a more robust split-lock head that would be sweet. | |
| 07-03-2014 09:17 AM | ||
| ahummingbird |
Thanks guys I had it checked on a cnc lathe and its definately bent. He's going to have a crack at making a couple for me too  Fingers crossed Cheers |
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| 07-03-2014 07:00 AM | ||
| chuk |
http://www.midwayusa.com/product/310...ty-gaging-tool I use one of these to check my shafts, and yeah, 4 out of 6 stock Blade shafts have been bent right out of the package. |
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| 07-03-2014 06:52 AM | ||
| Lu523 |
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| 07-03-2014 06:40 AM | ||
| HeliWobbles |
I have 2 metal rails that I know to be straight and have them set up parallel just short of the length of a main shaft. I then very gently roll the shaft along these two rails. They are never perfect because that little swaged bump always seems to be a little off-centre and effects the balance. Just rolling the shaft along a bench will always make it look bent because of the offset swage. By the way, for some reason the button often lies! It doesn't take much of a bump to make the shaft look like the culprit. Like Richard said, try taking it off, leave it off of the wobble disturbs you. The proof is in the pudding- the test hover. Ted |
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| 07-02-2014 10:28 PM | ||
| RichKnapp | Your head looks like the shaft and head are straight, BUT your button is off center. Try removing it and see what happens. I had one that wasn't able to mount level or centered so I just never ran that head with one and just threw the button out. | |
| 06-29-2014 04:40 AM | ||
| xenophobe | I replaced the main shaft because it was giving me a very tiny erratic tail wag that was bugging me. Upon inspection, it was ever so slightly bent. It had not been in a crash and only test flown a handful of times. | |
| 06-29-2014 04:11 AM | ||
| ahummingbird |
Thanks everyone for the advice I decided to throw the blades on and see what happens ... and... it seemed to fly fine. I didn't go hard but just a few pitch pumps, flips n rolls and everything went quite ok No obvious vibes however when hovering it does have a slight oscillating wobble to it centered around the mainshaft. Nothing nasty but very slight and definately there. Blade tracking actually looks quite good as well. I would have expected to see the tracking out from a bent mainshaft? I think I will just fly it as it is until either it becomes worse/causes problems in flight, or I crash again  Cheers Luke |
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| 06-29-2014 02:11 AM | ||
| xenophobe | After my latest rebuilds, I'm going to have to check main shaft straightness before I install them. I got at least one bent one in the last package. :\ | |
| 06-29-2014 01:28 AM | ||
| ahummingbird |
Thanks all for the input The entire head assembly is new, FS, grips, head, all except the swashplate. I have also replaced the mainshaft bearings. Although its a bit hard to see in the video but the mainshaft is oscillating slightly as well which pretty much brings me back to the mainshaft being bent as far as I can tell, rather than a head and/or FS issue although I could be wrong. I may go buy another whole assembly and try again but after $300 worth of parts, and countless hours trying to isolate the problem, I am a bit hesitant to spend another $100+ on a hope that it will fix it. That's more than half the cost of a new Gaui .... So do you guys think it's worth puting up in the air or is that still a little risky? Metroart, you say yours are all like that... does it cause any issues in flight? Thanks again 
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| 06-29-2014 12:52 AM | ||
| andybennie | Are you sure that the rotor hub is not bent/twisted? Also is the feathering shaft bent? | |
| 06-29-2014 12:51 AM | ||
| kik35 | that is definitely bent, it may be your bearing that are hooped not so much the shaft. just guessing here as you have gone through a few shafts | |
| 06-29-2014 12:48 AM | ||
| Chris g. | There is a chance you bent the rotor head that's why you are having so much trouble with the shafts. Did you replace the head after your crash? | |
| This thread has more than 20 replies. Click here to review the whole thread. | ||
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