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Mikado
Logo 600 › New to Logo New 600 build
02-18-2011 09:22 PM  6 years agoPost 1
smittylube

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Santa Cruz, CA

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Hey guys,
I just ponied up and bought the 3d version.

Am in the process of building and want to know if there is anything special I need to do when putting it together.
I have the scorpion 560kv, 12t, Edge 603 mains 92 tail, quick UK tail grip
Plan on 10S

I read about the head speed max on the SE? Do I need to worry about that?

I have as far as the tail and the frame/ main gear/ belt together.
I am amazed at how long the tail will spin without a head on it- nice..

I feel like I just bought a BMW instead of a honda 8-)

Did everyone epoxy the bearings into the tail gearbox? They sure feel tight without it.

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02-18-2011 09:45 PM  6 years agoPost 2
CompyMike

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sacramento, ca

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There is a nice list up on helifreak.com on what you should know about your logo and have been afraid to ask.

http://www.helifreak.com/showthread.php?t=144349

LOGO 500 VBAR / LOGO 600SE vbar

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02-18-2011 10:15 PM  6 years agoPost 3
dahld

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Bakersfield, CA, USA

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There are head speed limits on everything...but with the Logo 600 3D (standard version), the most common "reasonable and rationale" head speed is 2200 for top 3D performance, +/- 14 degrees of collective.

With a 560kv motor and 12 tooth pinion, I'll assume you're looking for 3D performance...so 2200 it should be.

Now you can run it higher (many have and survived), but all you'll get is shorter flights, hotter running components, and additional stress on the machine, with little "usable" performance increase (other than it will go faster in a straight line).

If it lets you down with 603's at 2200 (hard to believe, but...), then don't raise the head speed, just get 623 blades. Flights of course will be shorter, but not by much, and the "pop" is even better.

Buy the way, the Logo 600 3D doesn't NEED 2200 to 3D very well. It is a "choice", not a "need". It flies great at lower head speeds depending on your flying style and abilities.

"Did everyone epoxy the bearings into the tail gearbox?"

No, and I've never heard of anyone doing so. They are flanged and pushed outward by spacers and shims, and the belt tension pretty much keeps them from doing anything other than stay put.

(-: Dave

PS: the list on the other forum noted above is a good primer, but a little out dated. Not everything there is still the case.

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03-02-2011 11:36 PM  6 years agoPost 4
smittylube

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Santa Cruz, CA

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speed control and bec is all thats left to do.

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03-03-2011 12:07 AM  6 years agoPost 5
dahld

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Bakersfield, CA, USA

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Did you complete the grounding of the heli? If this your first Logo, you may not realize how important this is. Don't fly it without grounding the heli.

Dave

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03-03-2011 03:32 AM  6 years agoPost 6
Justin Pucci

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Bothell, WA - USA

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No, and I've never heard of anyone doing so. They are flanged and pushed outward by spacers and shims, and the belt tension pretty much keeps them from doing anything other than stay put.
Dave,

I actually do epoxy the flanged bearings into the tail cases of my Logos to prevent them from cocking in the shallow hole and eventually developing slop against the OD from wearing on the CF parts. Smitty does make a good point though about the tight fit. All the Logos that I've built have had very tight bearing-to-tailcase fitments. Good on Mikado for that!

The fact that you and Kyle don't do this tells me that I'm probably being a bit over-conservative. Then again, I'm an engineer...and that's what we're all about, right? I'm glad to hear it though either way.

Do you find that those bearings tend to have a shorter life (aside from damage due to crashes) than others in the heli?

Do you find that where they interface with the tail output shaft they leave a substantial wear mark (more than a simple witness mark)?
Did you complete the grounding of the heli? If this your first Logo, you may not realize how important this is. Don't fly it without grounding the heli.
+1 on this one! Definitely a must-know for a new Logo owner!

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03-03-2011 04:44 AM  6 years agoPost 7
dahld

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Bakersfield, CA, USA

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Justin,

Question, "Do you find that those bearings tend to have a shorter life (aside from damage due to crashes) than others in the heli?"

Yes, but they are not the most often changed bearing on the heli. In our experience, (in descending order), the most often changed parts on the heli's mechanics are (and about the only stuff we ever change short of crash damage): head dampeners (probably changed more often than necessary, but they're cheap), belts (Kyle's constantly doing very hard tail reversals), main blade grip inside radial bearings (they take a beating with hard 3D flying), main blade grip thrust bearings, then the tail shaft bearings. Everything else on the heli lasts just about forever.

Question, "Do you find that where they interface with the tail output shaft they leave a substantial wear mark (more than a simple witness mark)?"

Yes. But I usually get two or more tail shaft bearing changes before I feel the shaft is too far gone to keep. Crashes often cause the shaft to be changed before the wear marks becomes an issue, so the shaft is not not really a "routine maintenance" item for us.

(-: dave

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03-03-2011 07:39 AM  6 years agoPost 8
Justin Pucci

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Bothell, WA - USA

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Awesome info, Dave!

I expected everything in that list except for the belt. I know that it's a "consumable", but I figured it would last longer than the other items that you mentioned. Kyle must really give it hell with those reversals! Thanks again!

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03-03-2011 02:18 PM  6 years agoPost 9
smittylube

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Santa Cruz, CA

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>>>Did you complete the grounding of the heli? If this your first Logo, you may not realize how important this is. Don't fly it without grounding the heli.

Dave<<<

Yes I did that- my kit included the ground wires- I currently have the front one to the motor mount, but can easily do it to the ground wire.
Mounted the bec inside frame forward of motor/ below S/C - need to change some connectors to charge and some battery connectors then I can fly it... Deans on my other helis.

Also where can I get the sensor for the gov? I saw that fly on one yesterday- unreal!

Thanks for the help & comments guys

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03-03-2011 05:27 PM  6 years agoPost 10
Big Fil

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Santa Rosa, CA

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Smittylube, congrats on your 600 purchase. One item you listed on your setup that you may want to consider changing is the tail blades. 92mm don't do the best with the kind of torque that a 4035-560kv can produce. 95mm blades are a much better fit and what most run on 600s.

Just this last weekend a guy at our field with a V-Bar'd Furion 6 was having tail holding issues when doing full collective climbouts. After looking over his setup I noticed he was running 92mm blades and suggested the change to 95s. As soon as he did that his tail was locked in and he was a happy camper.

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03-03-2011 05:35 PM  6 years agoPost 11
smittylube

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Santa Cruz, CA

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Thanks Fil

OK I'll see what happens- I think I have some larger blades in my stash somewhere.. They were out of the 95's when I ordered the kit.
Charging up the pack right now. going to remove the mains and see how it spools up just to be safe. have to get my work done so I can put it up at lunch time. :-)

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03-03-2011 07:02 PM  6 years agoPost 12
mmc205

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PA - USA

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Crashes often cause the shaft to be changed before the wear marks becomes an issue, so the shaft is not not really a "routine maintenance" item for us.

Kyle crashes? i don't buy that for a second!!
He's so darn precise and smooth i can't imagine him ever making a mistake!

***Logo 600 vbar***Henseleit TDR vbar***

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03-03-2011 08:02 PM  6 years agoPost 13
alexf1852

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Inverness, FL - U.S.

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I'm still in the process of building my 600 3D. I bought it un-flown with the 4035-500Kv and 11T and 12T pinions. Using 12S, I'm thinking of starting with the 11T and Jive 80HV in Mode 4 at 65% throttle for around 2000 rpm. The packs are 6S 3300mah (520g each) 30C. So I think this should be OK and the Jive should be happy at 65%.

I have a set of 603 Edge FBL, 620 SAB 3D, 620 G5 and G4 Mavrikk (2nd Quality). The latter which will be on for the maiden flight. Don't want to crash the more expensive blades first in case something goes wrong.

I have the Edge 95mm tails, SAB 92mm tails. And for maiden flight, I will try the new KBDD 96mm Extreme tail blades.

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03-03-2011 09:44 PM  6 years agoPost 14
smittylube

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Santa Cruz, CA

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Well the first maiden at lunch- Passed the range check- brought it home in one piece--

Pinion spun- I seemed to have missed the part that said grind a flat on the shaft.. Back together- lookin like friday it will fly.

Good thing it happened where it did!

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03-03-2011 10:18 PM  6 years agoPost 15
Big Fil

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Santa Rosa, CA

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Yes, that's the one thing with Scorpion motors, you need to grind your own flat spot. At least moving forward it looks like they are listening to their customers and the newer HKIII versions have a flat spot machined on the shaft already.

Glad to hear you got it down in one peice .

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03-04-2011 01:01 AM  6 years agoPost 16
dahld

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Bakersfield, CA, USA

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mmc2105 said, "Kyle crashes? i don't buy that for a second!!
He's so darn precise and smooth i can't imagine him ever making a mistake"

Not real often. But when he does, it's usually full head speed, full pitch, full piro, full speed, full everything, hard into the ground!!

We've had a few "just get a new kit" type crashes along the way

(-: Dave

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03-04-2011 01:58 PM  6 years agoPost 17
smittylube

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Santa Cruz, CA

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>>>Glad to hear you got it down in one peice .<<<

Never got it off the skids! I think I'm going to try it on my way to work....

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03-04-2011 05:05 PM  6 years agoPost 18
smittylube

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Santa Cruz, CA

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Success! wow I see what all the fuss is about. You have to feel it to believe it.

Flies unreal. I am amazed at the tic tocs.. so easy and it just stops no wiggle no loosing altitude. Even at lower head speeds.
Quiet too.

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03-04-2011 05:29 PM  6 years agoPost 19
mmc205

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PA - USA

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congrats man! Now fly the heck out of it!!!

***Logo 600 vbar***Henseleit TDR vbar***

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Logo 600 › New to Logo New 600 build
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