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redvtr1000 -> RE: Mini Titan thread (2/13/2008 10:37:45 PM)
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David,
Been off my feet and not paying attention to much in this thread. I developed some form of tendon problem in my left foot, a direct result of standing around the field on the weekends in crappy shoes. Probably should have skimped a week on heli funds and got some better shoes but oh well.
Here's my thoughts...
Hard case. I don't have a suggestion for you on this one. I have seen a few out there but can't comment on quality. I use a dual tx aluminum case for my dx7 that I snagged from Tower. Cut it out and just holds my dx7, but its the only tx I will ever really need (for a while anyway).
Blade balancer.... I don't see any point in buying a 120.00 balancer. There are a couple models in that price range out there but you should be able to accomplish everything you need with much less. I know a few guys that fly way better than I can and use the shaft/cups trick.
Personally, I have three different balancers. For your situation, I would reccomend the helimax balancer (even though I cringe a bit while doing so). Its a pretty good balancer for leaving on your bench at home, take it with you a good bit and it will likely break. For the price, it does every blade big or small without worry if it will fit the root on these small blades. Avoid the dubro balancer (the one that doesn't use magnets) at all costs, true pos.
Gram scale for weighing the blades....
Truthfully, I haven't really been weighing my blades that often. But, I would check Staples and office depot on this for a mail scale. Alternatively, I don't know what you have for gas stations or "tobacco smoking accessory" stores in your area. Few of the gas stations around here and all of those adult novelty stores carry decent gram scales at cheaper prices. I wouldn't spend a bunch of money on this.
As far as the tail situation. I haven't had any noticeable vibrations caused by my tail. I run K&B tail blades, nice colors. I chipped one a week or two back and still couldn't see a vibe when I know they were out of balance. I would think your vibe problem is coming from somewhere else. If you pull the main blades and spin it up a bit and the vibe is gone, probably your mains. If it remains, try putting a piece of tape on one of the tail blades and spin it again. If it got worse, try the other blade. Better? try more tape on the same blade.
Experiment with a piece or two and see if you can make it go away. I suppose the scale takes the weight out of the question and makes the tape process mostly obsolete.
You mention binding on the extreme inner end. You mean as the slider approaches the tail case, maybe 2mm before it gets to the end of its mech. travel, it will bind up? Mine does this and I keep it free and moving by adding a drop or two of machine oil before I go out to fly.
If I let it get dry, it will lose that last little bit of travel. Remove the pushrod and operate the slider up and down the shaft with some lube to help free it up, this should help as long as the problem is with the slider and not with your gyro's limit.
Are you running the stock blades? I can understand them being fairly out of balance and causing the vibe, I would look there first. Especially if your setup is all new and uncrashed.
As far as the elevator servo goes, personally, I would remove the grommet and metal bit. I would shim that servo forward as I described in an earlier post. You might not notice the difference with the rubber in there but I think hard mounting it would be the easiest thing to do and that servo won't ever develop slop in the mount if the rubber wears over time.
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