osterizer

Maybe something in the head binding, or blades too tight in the grips and not free to balance. I've also seen it when the head speed was too low to sling the blades out strongly enough.

redbaron9898

My Feedback: (2)

this happens in idle up though...
I don't think its the headspeed.
when i am just hovering the tail will shake up and down

noobflyer01

have it been crashed? check all shafts. and bearings. check the head for any slop.

i too had the same problem. but after i swapped out blades the vibe went away.

noobflyer01

i went to an empty parking lot today with the mini titan. there was a storm approaching as usuall this time in orlando florida. had lots of gust and 15+ mph winds. that didnt stop me from flying however. i didnt dare to do any flips or rolls in this much wind. just flew taking it easy and enjoying it.
at the 3 minute mark i flew close to the camera for a flyby. awesome!

http://www.youtube.com/watch?v=GsmyMkPAdjU

osterizer

redbaron- please don't take this wrong, but saying that it is in idle-up doesn't mean a lot. If you were talking about a RTF King 2 we'd know what you were talking about, but the MiniT is a bit of a step up, and you can program idle-up a lot of different ways.

Please post the following so we can think about it:
- motor brand and model
- pinion you're using
- ESC model and what you've set
- transmitter type, and throttle and pitch curves
- battery brand and model

The symptoms you're describing are a little complicated to sort out, so the above information will make it clearer. I may not be the guy with the answer, but that info may strike a chord with one of us.

Thanks.

osterizer

cool.

redbaron9898

My Feedback: (2)

I am using:
align 430L motor
align RCE-BL35X speed control medium response
13t pinion
2150 mAH battery 20c
DX6i transmitter
idle up pitch curve: 20...40...50...60...80

osterizer

I'd start by checking that the dampers are OK, and then try raising the throttle curve.

noobflyer01

had a major crash today with mini titan. main gear, rotor head, skids, feathering shaft, main shaft, tail fin, bottom base. []. about 130 bucks worth of damage. crashed coming out of a roll. i did way too low and hit the ground coming out. to be honest it wasnt flying that great. the cost of repairs is about the cost of a new kit. []. i dont think i'm going to repair it. gonna get a new bird instead. all electronics survived the crash.. after all the different helis i have flown in these short months the EXI 450 at 99 bucks is by far the easiest and smoothest heli i have flown. flips and rolls are crisp and clean. i will either get the all metal version of exi 450 or the trex 500. i would like the trex 500 but the electronics requirement for that heli is really steep. since i can get a trex clone setup in 3 hours i'm gonna strip the titan and transfer eletronics into the exi.

redbaron9898

My Feedback: (2)

my throttle curve is 100...90...80...90...100

osterizer

You're running me out of ideas here . I'd still be looking for something sticking or loose in the head, though, starting with the dampers (o-rings) and making sure the bearings in the grips are in the right order/orientation.

redbaron9898

My Feedback: (2)

I just checked the dampers...they still are pretty firm.
It only really happens when i do a hard manuver where i move the stick all the way to one direction.
I just crashed it pretty bad... so hopefully when i rebuild it i can find the problem

osterizer

Oh, my, important bit of info there . When you're putting things back together, disengage the motor from the spur gear so the head/main/tail turn freely. While you're gently turning the shaft, move the cyclic through all directions and make sure it isn't binding up. With the stock head, it's easy to put too much cyclic travel in it, and in extremis, you can impact the grips with the linkages and tear up servo gears.

Crossfade

My Feedback: (1)

I still have not fixed my tracking problem and it's still bad enough to keep it grounded, i have inspected everything and i have found that there is a good amount of slope in the stock swashplate i wonder if this is my problem, i have also been told i need to glue my outter bearing races in the main shaft becuz the whole bearing as been know to spin and wear the plastic which creates even more slope and a vibration which i also have.

I think i may just glue my main bearings and upgrade to the assembled cnc head for $104

http://www.cnchelicopter.com/servlet...325-CNC/Detail

osterizer

Sorry there's still a problem there. The swash is always going to have some play in it, but unless it's really excessive it shouldn't cause a tracking problem. If the bearings are loose enough to cause that, you should be able to tell by wiggling them- if they're flopping around from wear, then that would definitely be a problem.

smarks

Nice find on the head. Wonder how it compares to the Kasama head? They have some nice CNC stuff if it all fits without modification.

GRR_Mojo

I have this one and I like it http://www.cnchelicopter.com/servlet...325-CNC/Detail

Will these bearings work for the main https://www.helidirect.com/advanced_...96b78b99af4212

Guizmo17

Alright. I've started this thread and some months ago I left a bit the hobby because I had a bit of a .... finatial problem. But now I'm back on ! I just want to know between 2 Gyros and 2 servos witch one is the best

SERVOS :

1. Futaba Digital Rudder Servo S3153
2. Maxwell MX65 Metal Gear Digital Rudder Servo

GYRO :

1.Futaba GY240 Head Lock Gyro
2.Gaui Gyro GU210

2 Combos witch 1 is the best ?
1.Gaui Gyro GU210 , Maxwell MX65 Metal Gear Digital Rudder Servo
2.Futaba GY240 Head Lock Gyro , Futaba Digital Rudder Servo S3153

So.. what do you thing ?

osterizer

I don't think I ever tried a 3153 on the tail (used a 9257)- I have them on the swash, though, and they're very sturdy and precise for that, very good stuff. It'd probably work fine on the tail.

If you're looking at a Futaba gyro, I'd suggest kicking in the extra and getting the 401; the remote gain control is extremely useful.

bckyrdbshr

My Feedback: (35)

Well I just joined the MT club... Hope I made a good choice. Seems to be a lot of people that like it. What's this I hear about having to glue bearings?? that part makes me wonder about my choice in birds as I hate to have to modify something that shouldnt need to be.

smarks

I have the ARF and didn't need to glue any bearings. It's a great heli, I love mine!

bckyrdbshr

My Feedback: (35)

Thats good to hear... I hate to have to mod stuff that I realy shouldnt have to. I'm sure I'll love the heli also, it will be a big step up from my Axe CPv3.

noobflyer01

check out this mini titan clone here. all metal head and tail.

Guizmo17

Where did you find that ?!?. Is there clones on Mini Titan like the T-rex 450 clones ?

noobflyer01

i got this for 120 bucks during xheli's xmas sale. this is the only mini titan clone that i know of. i also have a genuine mini titan e325 and this clone just blows it away. carbon frames, metal head and tail, carbon blades.