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View Full Version : Some issues with my Blade CP I'd like some advice on.


Adam Stephens
09-04-2006, 07:56 PM
Hey Guys,

Ok, so after my near complete refit there are still a couple of more issues that I have to work out and I was wondering if other pilots could lend a hand.

1. Tail Boom will not 'glue' to main frame: I guess it's cause of the carbon fibre, but it will not glue into the main plastic chasis... This means the tail rotor being at a 90 degree angle from the main rotor can vary quite a bit! Also, I had the tail boom fall out a couple of times. Naturally one would want to curb this annoying tendancy. I used super glue to glue the boom into the chassis socket but no luck. Can anyone recommend something to use?

2. The Rotor Head Frame Sticks: I think it's because of the lube that I've been using. It was recommended that I use a silicon grease to lube the rotor head frame, I've also used the Trinity oil based lube to a better effect. Anyhow, how there is a fair amount of 'stick' to the head before the servos will adjust the pitch of the blades up or down. It worries me because it means I'll have to give quite a bit of power to get lift and then it will jump into the air... Not exactly the smooth motion I"d like. Also, I'm worried that it will cause undo stress upon the servos and burn them out prematurely. Can anyone recommend a lube and how to clean oil and silicon based lubes off a rotor head or should I just be looking at getting a new one?

Many thanks for all of your help, guys... What an invaluable resource this forum has been.

Psikelly
09-05-2006, 03:12 PM
Try sanding the end of the boom that goes into the frame lightly and use Thin CA. It really wicks in there and has max. hold. Thats all I use and never had a prob. I dont find superglue works its way into the tiny cracks like Thin CA will.

I use oil from radioshack(the source). Its in a small pen style applicator that has a real pointy steel tip. its a radioshack brand and its got ground up teflon in it.Thats the best stuff Ive found yet. The grease is a little too thick and will cause sticking. Especially when it gets a little cooler outside.

Another cause of the sticky head might be that you bent the main hub.It can be such a slight bend you might not be able to see it.The best way to check it is first clean all that grease off and use oil instead. 3in1 might also work. Disconnect all the linkages and slide the centre hub up and down on the main hub. The centre hub is the one that the flybar runs through. If you feel any stick at all you should spend 10 bucks and get a new main hub.
The centre hub can be left alone. I actually had this happen to mine after a pretty minor crash.

Adam Stephens
09-05-2006, 03:38 PM
Thanks for the advice! I purchased a new centre spindle set and the sleeve cause hey, spare parts are never a bad thing, I've learned in this hobby.

I was surprised at how porous the plastic is, strikes me that that can't be a terribly good thing but there you have it.

I got some pen oil that supposedly will work well. For the hell of it, I'll install the new parts, lube it and give it a test fly tonight. The conditions should be damned near perfect tonight so I should be able to trim it up after that ugly boom strike I had to rebuild from... Uck.

Warren
09-05-2006, 06:26 PM
Hey,

Exactly what is being lubed...... I have looked for articles on what and where to oil, not much found - what is the "radioshack" graphite pen being put on ?

It used to be " if it moves, oil it ", but with all the plastic bits, that doesn't seem to hold true anymore.

Good luck Adam !!

Psikelly
09-05-2006, 06:59 PM
Well you can oil the ball links if you like. Cant hurt. But mainly I oil the main hub assembly. That oil is thin enough that it works its way in there quite nicely. Just oil anywhere that looks like there could be friction. Including plastic parts. Anything you can do to keep it all running smoothly is better.

Im actually taking my heli apart tonight. Had a massive boom strike using the plastic blades and it just shattered the boom lol Them blades are awesome for sustaining damage but boom strikes are usually deadly. But Id rather be replacing a $4 CF boom than $20 balsa blades.

Warren
09-07-2006, 09:42 PM
Hey,

you guys back at it yet ??

Just wondering how the repairs went, hopefully well..... I went into the hedges twice today, ahhhhhhhhhhhhh if everything was as nice to strike - just sticks there about 6 feet up till you pull it out....... straighten the blades, and back at it.........

I found out that standing beside it when the wind shoves it from behind is not a good thing - at least at my stage of flying it isn't,

therefore the hedge incident :)

Adam Stephens
09-08-2006, 12:54 AM
LOL! I had that happen to me the other day. Except the bird was erratic and I'd bent the paddle bar a little so I straightened it to a reasonable 'on the field' degree and gave it a shot at a distance... Flew.... alright I guess... Until it whired my way. It also shot up pretty damned quickly. like 90' but I think it was because the paddles might have been a few degrees in the positive pitch. All in all, pretty funny. Except I have repairs now... lol.