Posts: 8
Joined: 3/22/2007 From: keizer, OR, USA Status: offline
Hey, I'm a couple weeks new at this. I have a lama v3 and have gone through a few batteries. I am able to hover and do some slight movements. My question is power related. I was about 4ft off the ground in the garage and had to cut the throttle. it came straight down on the landing gear/battery (no abrupt blade stoppage), then I moved it to the middle of the garage and went to give it power and nothing. No green light no servo response, not even w/ a new battery. I looked at the receiver boards and see nothing that looks or smells burnt. Any help???
Posts: 29
Joined: 4/1/2007 From: Bellevue, NE, USA Status: offline
Hi everyone, new to the forum and I'm sure this has been asked a hundred times. I just crashed my lama v3 for the first time really hard (after 95 flights). Tail boom strike on takeoff from the dinning room table. Lost control, overreacted and CRASH into the end table in the family room All the damage I could see was the rotor blades needed replaced, also broke the tail boom. I replaced the rotor blades and tried flying again, now there is a slight wooble in all phases of flight, not a horrific wooble but a wooble none the less. Could I have bent the inner or outer shaft or both? Any help would be greatly appreciated. Thanks in advance.
Posts: 29
Joined: 4/1/2007 From: Bellevue, NE, USA Status: offline
Thanks Krev, hopefully someone else might have some ideas, as far as your crash, just make sure everything is solid and all connections are good, believe me I am no expert when it comes to electronics. Good luck
Posts: 279
Joined: 4/14/2006 From: knoxville,
TN, USA Status: offline
Hello PoppyDon, If you hold the rudder stick all the way to one side and slowly increase the throttle, only one set of rotors will spin initially. Reduce the throttle, move the rudder stick to the opposite side and gradually increase the throttle and the other set of rotors will spin. This maybe able to help you determine which rotor/shaft is causing the wooble. NOTE: Do not increase the throttle enough to fly, you are just checking to see which rotor or shaft is not true. Good Luck!
_____________________________
Remember the old saying, "Helicopters don't fly, they beat the air into submission.".
Posts: 29
Joined: 4/1/2007 From: Bellevue, NE, USA Status: offline
CCPMHELI......Thanks for the reply, I conducted the test you suggested and there is considerable wooble on each of the top and bottom rotors, so does that mean I need to replace both the inner and outer shafts? How hard is that operation to do? Thanks again for your reply.
Posts: 29
Joined: 4/1/2007 From: Bellevue, NE, USA Status: offline
Some one please help, I got my replacement parts today and started tearing down the inner and outer shafts. I got the inner shaft out okay but am at a point where I cant get the outer shaft out. I removed all the hardware off of it and loosened the retaining collar below the swash plate but I cant get the outer shaft to move down and out from the main frame, do you tap it out with a hammer? Any guidance on this repair would be greatly appreciated. BTW I'm no Mr. Goodwrench!!!!
Posts: 5
Joined: 4/10/2007 From: delafield, WI, USA Status: offline
On my new lama v3 the upper rotor and blades seem to wobble too much. The lower blades are fine. Are the blades or flybar off balance, is the post up to the blade bent or is this normal. Flight seems to be more unstble that it should be. I am new to heli flying and have had a couple of crashes but no obvious damage except for broken rotor blades which I have replaced.
Posts: 29
Joined: 4/1/2007 From: Bellevue, NE, USA Status: offline
Rotor123 check out post 1005 and do that test, sounds like to me the inner shaft is bent, I'm in the process of changing both inner and outer shafts except need help from this forum on removing the outer shaft.
Posts: 5
Joined: 4/10/2007 From: delafield, WI, USA Status: offline
Thanks poppydon. I should have checked the posts before I posted my question but did not think of it. I did the check and it is definitely the upper rotor blades causing the problem. The parts are on order but I will probably need advice in removing the inner shaft. Sounds like you worked that part out and any advice you have would be appreciated. Thanks, roter123
Posts: 279
Joined: 4/14/2006 From: knoxville,
TN, USA Status: offline
Hello PoppyDon, Sorry it has taken so long to get back to you on this. I ordered an HDX 450 Heli Kit last week and I must admit, in addition to the fatigue, I was a bit distracted. I believe it is possible for either shaft to cause the other to appear to be bent. That being said, it is quite easy to get the inner shaft(top rotor) out. Remove the collar(mine has 2 tiny phillips head screws) on the bottom of the shaft(just below the gears). You should be able to pull the shaft out the top, you may have to work it a little.Once you have it out, you can roll it on a piece of glass or other flat surface and tell if it is true or not. You can probably true the shaft yourself if it is not too bad. Pay close attention to the area of the shaft where it intersects the upper rotor head. The whole shaft could appear true and yet the rotor head to shaft relationship could be out. The outer shaft(Tube) seems more durable to me. A hollow tube can have much greater resistance to bending than a solid shaft. Thats good, because it is a little more complex to remove. I don't really want to remove my outer shaft as it is fine. Try the inner shaft first, and if you find that the outer is bent, I will pull mine out so I can give you a blow-by-blow. Once you have the inner shaft out, you can more accurately check the outer shaft. One way to do this is to set the heli on a flat surface. Get a ruler and stand it up beside one of the rotor blade tips, note the number. Rotate the rotor(not the heli) 180 deg. to the other blade tip, measure that. If the two numbers are the same, more or less, the shaft is true. A more accurate method would be to make a "run out" tool out of a paper clip(See Pics). Remove the lower rotor blades. Hold the tool against the side of the heli and bend it till the wire is very close to the outer shaft but not touching. While veiwing the gap between the wire and shaft, rotate the rotor head and see if the gap remains constant. If it does not stay close to the same, the shaft is bent. Good luck. Get back to me if you have additional questions.
_____________________________
Remember the old saying, "Helicopters don't fly, they beat the air into submission.".
Posts: 21
Joined: 4/1/2007 From: Louisville, KY, USA Status: offline
Well let me thank the members of RCU, and HobbyWorldUSA.US - the best HS in Louisville! I haven't taken the real plunge yet (into ccpm) but I am getting my feet wet and these forums have helped me tremendously. I have done a whole lot of reading lately but this is my first post. Following are some of the stats from my last 48 hours.
e-sky lama v3, along with 3 Mega-Power 850mah batteries (these things are much better than stock), inner shaft with aluminum hub, and lots (I mean LOTS) of extra blades. I had read enough to delude myself into believing I could learn to fly this thing without doing much damage in the process. I quickly learned three things 1) YOU WILL NOT LEARN TO FLY HELIS WITHOUT BREAKING SOMETHING IN THE PROCESS! 2) Breaking stuff really isn't THAT big of a deal - putting it back together is part of the fun and I currently have about 80% of my tail section left with no discernible change in flight stability. 3) There is a catch-22 to learning helis: You have to trim and adjust a new heli so it will hover correctly, BUT in order to do this you not only have be ABLE to hover a heli but one that is out of trim. This hobby is going to be more addictive than cigarettes.
So I have 48 hours of ownership and about 9-10 battery packs under my belt so far. Between my cousin and myself we have broken just over 20 blades! But I can now hover tail in proficiently, and am VERY close to my first hands free experience.
What I have done to my LAMA V3:
I replaced the inner shaft with aluminum hub - seems to work just fine. I adjusted the push rods linking servos to swash plate arms to minimize use of trim dials on Tx. I adjusted proportion pot, haven't touched gain pot yet. I loosened the knot of wires going from 4in1 to servos so that 4in1 would sit flat on its tray I trimmed a TINY little notch out of the left swash plate arm where it was rubbing against one of the soldered connection on the motor that drives the inner shaft.
I have to say I am really impressed with the relative durability of this little craft. It is surviving my crash course (LITERALLY) on rc helicoptering very well. Learning to fly this thing is even more fun than I expected.
question for anyone who knows - Are there any non-stock options for tail replacement other than the xtreme productions set up? (which I do think is super sharp)
Posts: 21
Joined: 4/1/2007 From: Louisville, KY, USA Status: offline
I have not had my LAMA V3 very long, but have experienced the same thing and found that it went away after I straightened my bent stabilizer bar and wrapped my damaged tail section with a small piece of tape where it was badly broken.
I am new to this post too but very excited to be learning to fly rc helis.
Posts: 29
Joined: 4/1/2007 From: Bellevue, NE, USA Status: offline
ccpmheli........... Thanks so much for your insight and time with helping me. I replaced the flybar and the innershaft with brand new parts, am still waiting for the tail boom from China. The heli still has a slight vibration but not to bad of one, I dont know if the tail boom would help dampen the vibration some? Maybe I'm to much of a perfectionist! If you have any more ideas on the vibration I would appreciate your imput. I really appreciate all you have done for me and the other people on the forum.
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All Forums >> RC Helicopters >> Electric RC Helis >> Esky Helicopters >> RE: E-SKY LAMA 2 THREAD 
RE: E-SKY LAMA 2 THREAD - 
All the damage I could see was the rotor blades needed replaced, also broke the tail boom. I replaced the rotor blades and tried flying again, now there is a slight wooble in all phases of flight, not a horrific wooble but a wooble none the less. Could I have bent the inner or outer shaft or both? Any help would be greatly appreciated. Thanks in advance. 
