New Logo 690SX!!

[Trexwilly]

I would be happy to see a more robust drive line, I can strip gears on command now...

[maarset]

Originally Posted by Trexwilly

I would happy to see a more robust drive line, I can strip gears on command now...

Must be getting expensive

[Trexwilly]

I think in the 4 years I have owned my Logo, I have stripped it 6 times... never a crash, it just rips 5 or 10 teeth off the main gear, and vibrates real bad...

I don't do it on purpose but sometimes I get carried away and it happens?

[ame]http://youtu.be/uIuRM7dX6o0[/ame]

[sl4ppy]

You must have something else going on there; you're not doing anything out of the ordinary in your flying.

I've *never* stripped a main gear flying 3D.. There's a guy I fly with who can bend the main shaft on his 600sx literally on command and I've never seen him strip his main gear..

George Brown Aero Hobby 2013 Fun Fly Mitch Pricer Logo 600SX (4 min 37 sec)

(yes, that's Pinion screaming in the background.. lol)

You're mesh is too tight/too loose or something.. It shouldn't strip that easily.

[Trexwilly]

That is a different heli than mine... Mine is a 600 3D no motor counter bearing, with main shaft support. I am sure that Mikado added that setup because people were having issues, you think?

My Xera motor has the wrong bolt hole spacing to use that kit, otherwise I would have added it long ago.

[prototype3a]

I have a pair of 600-3ds and I've never stripped the old narrower gear. I did retap my Xeras for M4 though and use the 25mm counterbearing.

[Trexwilly]

But if the 690 has a bigger pinion, and the counter support I don't think it will be an issue.

[sl4ppy]

Originally Posted by Trexwilly

That is a different heli than mine... Mine is a 600 3D no motor counter bearing, with main shaft support. I am sure that Mikado added that setup because people were having issues, you think?

My Xera motor has the wrong bolt hole spacing to use that kit, otherwise I would have added it long ago.

Oh, yup. That could definitely be it. No 3rd bearing means that the gear mesh will change pretty significantly under load. :/

How many main gears can you go through before you'd spent the equivalent of a motor with the correct spacing?

[Trexwilly]

20 main gears

I found a Used Mikado edition 4035-560, I am going to add it on my next big overhaul, be it ground induced or otherwise! I also already have the kit, and a box of spedix stuff too...

[TommyBear]

Originally Posted by Trexwilly

20 main gears

I found a Used Mikado edition 4035-560, I am going to add it on my next big overhaul, be it ground induced or otherwise! I also already have the kit, and a box of spedix stuff too...

With respect,

To go through 20 gears means your meshing is incorrect.

[Trexwilly]

Originally Posted by TommyBear

With respect,

To go through 20 gears means your meshing is incorrect.

With respect, if you think I went though 20 main gears your reading is incorrect

[TommyBear]

Originally Posted by Trexwilly

With respect, if you think I went though 20 main gears your reading is incorrect

I didn't mean you specifically.
I should have said "if someone goes through 20 main gears ...........
Ohhh the power of the English language.

[Trexwilly]

I just assumed you meant me, as you quoted me, and started your sentence with "with respect?"

No harm no foul, guys lets get back to the topic at hand... Who is in line for the 690SX?

[mahbouni]

Honestly guys, I've flown my 600 harder than that and I've seen other people like Stu Smith wring his out completely. I think a lot of gear strips are setup related. Too tight or misaligned gear mesh causes heat and softens the plastic. A motor that runs hot doesn't help either.

One other thing I just remembered is I once replaced main gear after a crash and the new one had a really bad mesh. No matter how much I tried it just wouldn't mesh smoothly with the pinion and felt notchy even when I rolled a pinion on it separately. Turned out that the main gear was just a duff one. I replaced it with another one and all was good.

[chc35]

I just placed a order for one, I was wondering if anyone knows if 700mm blades will fit.
I ask because I am using halo 700 blades on a e700 and would like to use them on the logo.
Thanks Chris

[mkovalcson]

The main gear is not perfectly round and the best mesh is to have the ever so slightest bit of backlash at the the high point on the gear.

If you set the the mesh just a tiny bit closer than this the main gear will actually wobble up and down putting stress on the OWB and the gears.

This is after initially setting the pinion by spinning the untightened pinion pressed into the main gear to make sure the pinion is centered well on where the main gear wants to float riding the OWB. This has to be done without the counterbearing block in place using the short motor bolts.

[Laughingstill]

If you can strip main gears on any Mikado helis even the older Logo 600 drive train (was flown in competition tested by MANY hard 3D pilots) something is definitely wrong and a larger mire beefier drive train will not fix a setup issue.

[michael88997]

I think the only issue with the mikado gear is when people try and set it like a straight or slant tooth gear.. setup correct its a beast

[BigIreland]

One of these running 1600iu1/1800iu2 is sounding pretty good for a long flight, collective management training heli. From the sound of it, I won't even have to get a new motor, just a smaller pinion.

[TimZ]

Manual got released. Won't be long now before it's available I guess.
Love how they show a picture of their new vbar control in it, hehe.

http://www.mikado-heli.de/downloads/...sch%200001.pdf