Trex600 Nitro Pro Build Vids

[Finless]

so am I correct in assuming that every time the belt would need re-tensioning that the long linkage would have to be adjusted?


That is correct. What might be a good idea is before you move the boom mark where the pitch slider is on the shaft with a sharpy pen. Now adjust the boom. When done adjust the link on the push rod at the tail to put the slider back in the same spot. Done!

Bob

[TheBum]

Good idea. I'm not at the point where I'm financially ready to buy a 600N, but I'll keep that in mind should I choose the 600N Sport over (under?) the 600N Pro.

[fiveoboy01]

Bob's vids rock, I downloaded them all, put them on a cd so that I could pop it in my laptop.

Carried my laptop over to the workbench(kitchen table!) and have been mostly ignoring the instruction manual during assembly. It's great, I just pause it while I'm doing a step, or it's easy to click backwards to get a repeat of a section.

So far I have the head all assembled, took apart and re-assembled the main gear set, and took the clutch/hub/oneway apart. I hope to get a lot done later tonight when I get home from work.

[ducati996]

Let me tell you...

I bought a 600N Sport and I put it together almost 90% from the videos. The only time I actually looked at the manual was when Bob was putting together the tail/torque tube assembly. THANK BOB FOR THE VIDEOS!!!!!!!!!! You rock! I have a Trex 450 SA so for me it was my 1st Helicopter Kit. I have 7 flights on it and it is sweeeeeet.

[dxtarl]

Hey Bob have you Tried these yet?

http://www.rchover.com/inc/sdetail/116063

[Eyefly]

Bob, I just watched the video on the tank and had an idea. You said not to use the thin wall fuel tubing for the clunk because it has a way of coming off. What about useing a few zip ties to pinch the tubing around the inner smaller diameterof the nipple. A photo is worth a thousand words right? Here is what I mean.
What are your thoughts on this?

[Finless]

Yes this is a good idea and I have use it before.
The problem with some tubing is not that they come off it's that the gasses from the muffler (coming in through the pressure tap) and the fuel "eat" at the line and the stuff splits at the connection nipples.

So yea good idea but keep you eye on the line and inspect it from time to time.
Also after every flight ALWAYS fill the tank to expel the gasses. If your done for the day, fill the tank and pump it back out.

Bob

[fiveoboy01]

I just finished installing the servos and setting up the linkages for all the bellcranks.

I don't like the fact that the align wheels do not fit tight on the output shaft, there is a very tiny amount of play. However when tightened down they don't move so I'll try them and inspect them periodically for signs of moving around.

I'm almost done with the tail assembly.

My question is, I haven't seen the step for tightening down the setscrew for the bellcrank shaft(for the middle bellcrank between the frame halves. I know bob said to leave it loose for the time being while installing the shaft and the outer bellcranks.

Is that step a ways off(am I getting ahead of myself) or did I miss it somewhere?

[Eyefly]

Thanks Bob. What if I am using a YS motor and the pressure comes from the crank and not the muffler. I assume these gasses should not be an issue? Is it OK to store the heli with a full tank?

[mc.mark]

Hi Bob! Thanks for the useful and helping vids!! Really a smart way to get friendly with the trexN!
Just a little question, I'm new with nitro hely and I still can not do the engine setup and carb. setup. I'm stuck with the setup of the needle and idle valves. Any tips about setting them up? I know I should leave the idle as it is but how many clicks should I close the needle from the 1.5 turns raccomended by the manual? I'm going to use Cool power 30% (is it a good percentage of nitro or too much?) Thanks for the support!!!

[Finless]

Once you have run a few tanks 4-5, then start moving it in a click or 2 and run it... You should feel power getting better as you start to lean it out. If you go too far the engine will sound like it is screaming at you and will make what some refer to as a "bark" when you hit the throttle. Now as you try it 1-2 clicks in at a time run it and land and do the finger test in the bottom of the motor. If you cant hold your finger there for a few seconds YOUR TOO LEAN.

In general if you have the needle less than 3/4 turn out you probably too lean. I am about 1 click in on a full turn but I change this based on conditions for that day!

Bob

[mporlier]

Once you have run a few tanks 4-5, then start moving it in a click or 2 and run it... You should feel power getting better as you start to lean it out. If you go too far the engine will sound like it is screaming at you and will make what some refer to as a "bark" when you hit the throttle. Now as you try it 1-2 clicks in at a time run it and land and do the finger test in the bottom of the motor. If you cant hold your finger there for a few seconds YOUR TOO LEAN.

In general if you have the needle less than 3/4 turn out you probably too lean. I am about 1 click in on a full turn but I change this based on conditions for that day!

Bob

Being new to nitro and still learning a lot!! I did my 6 tanks rich and I wanted to feel and learn the differences in power and noise my engine made when changing the mixture. So the best way I found was to let it run dry. On my 5th thank I hovered from 15' and let it run till the end. That was very interesting, you can CLEARLY EAR the difference. The sound rises in pitch, you really gain head speed so the heli goes up quite a bit and than POUFF! It just dies. I finished with a nice auto and that was it. I figure I did an "In flight pinch test" :lol:

I hope I did not damage my engine, it worked fine the rest of the day.

Marc

[Finless]

I hope I did not damage my engine, it worked fine the rest of the day.


Not a good thing to do really and yes this can damage the engine.

I guess I will have to do a video on tuning better but I also dont want to damage my engine by showing what too lean sounds like! Tuff thing to show without possibly damaging an engine!

Bob

[mporlier]

Not a good thing to do really and yes this can damage the engine.

I guess I will have to do a video on tuning better but I also dont want to damage my engine by showing what too lean sounds like! Tuff thing to show without possibly damaging an engine!

Bob

Well I guess I was lucky then, it flew well after that. I must say that it took less than 4 sec from the time it went from rich to dead. So it did not run long lean.

[fiveoboy01]

Guys one small thing I found, is that if you plan to use the tab for the remote glow driver, take the socket head screw to a wire wheel and get the black coating off it.

My remote glow wouldn't work because the coating on the screw was preventing the current from flowing to the engine mount hence interrupting the circuit. I cleaned off the screw(mainly trying to get the underside of the socket head) and it worked great after that. It's a real nice feature, no running a ground wire.

[brovic777]

Thanks for the throttle cut switch video Finless. Works awesome on my Nitro!!! :thumbup:

I'm surprised more people arn't doing that mod.

[mc.mark]

Once you have run a few tanks 4-5, then start moving it in a click or 2 and run it... You should feel power getting better as you start to lean it out. If you go too far the engine will sound like it is screaming at you and will make what some refer to as a "bark" when you hit the throttle. Now as you try it 1-2 clicks in at a time run it and land and do the finger test in the bottom of the motor. If you cant hold your finger there for a few seconds YOUR TOO LEAN.

In general if you have the needle less than 3/4 turn out you probably too lean. I am about 1 click in on a full turn but I change this based on conditions for that day!

Bob

Thankyou bob! I'll try this week-end the engine setup! Just a little last question. I noticed that my tail is not properly centered, I mean, according to the manual and your vids, having the servo at 90 and bell crank at 90 I should get the center of the tail slider with a little of pitch but I do get a neutral pitch to the opposite!!! and I also notice a little of strikes! If i try to lenghten the tail servo arm it strikes more!! I'm using a gy611, everything is factory setup end points are 100 gain 0 in Normal mode!! I'm just becoming crazy to understand what'sup!

[Finless]

Mark what your asking is simple man... ADJUST the 611 end points so they DO NOT bind the servo! In the 611 menus are end point adjustments to limit the throw to each side. Adjust those!

I have several 611 setup videos done on the 600E, logo14 etc.... Watch those and understand how to adjust throw in the gyro menu.

Sorry but best answer I can give you :)

Bob

[mc.mark]

No problem Bob, thanks again! Ok I'll watch the vids! I wanted to lower the limits on the gyro but doing so I had to go under 100% (94%) and I thought it was wrong that's because I didn't do it. Ok I'll work on it!

Mark

[Mercuriell]

No problem Bob, thanks again! Ok I'll watch the vids! I wanted to lower the limits on the gyro but doing so I had to go under 100% (94%) and I thought it was wrong that's because I didn't do it. Ok I'll work on it!

Mark

In addition to Bob's work on the 611 I have done 2 tail setup videos (http://www.helifreak.com/showthread.php?t=36177)on the 600 N & E which you may or may not find useful

[mc.mark]

Mark what your asking is simple man... ADJUST the 611 end points so they DO NOT bind the servo! In the 611 menus are end point adjustments to limit the throw to each side. Adjust those!

I have several 611 setup videos done on the 600E, logo14 etc.... Watch those and understand how to adjust throw in the gyro menu.

Sorry but best answer I can give you :)

Bob

Hi Bob,

So, this is what I got after setup:
all linkages at 90, I set the tail so that at neutral induces a little of pitch, main likage is 187 mm and second linkage about 648/9 mm; I set gyro menu with 80% of limit one side and 112 the other side. I don't get any bindings and strikes, could it work good?
Thanks
Mark

[mc.mark]

In addition to Bob's work on the 611 I have done 2 tail setup videos (http://www.helifreak.com/showthread.php?t=36177)on the 600 N & E which you may or may not find useful

Hi, mercuriell! Thank you very much! I didn't check out your vids yet! Yeah, anything is useful! You're really great guys, thank you very much again, I'll try to work on my sy setup to get limits on my gyro over than 100, adgusting rods again.
Mark

[Finless]

Hi Bob,

So, this is what I got after setup:
all linkages at 90, I set the tail so that at neutral induces a little of pitch, main likage is 187 mm and second linkage about 648/9 mm; I set gyro menu with 80% of limit one side and 112 the other side. I don't get any bindings and strikes, could it work good?
Thanks
Mark

I honeslty would like to see you MOVE the servo on the boom if as 600E or adjust the link from the bell crank to the tail, andsee you end points a little more balanced BUT YES... I think you will be fine my friend! :)

FLY IT

Bob

[mc.mark]

I honeslty would like to see you MOVE the servo on the boom if as 600E or adjust the link from the bell crank to the tail, andsee you end points a little more balanced BUT YES... I think you will be fine my friend! :)

FLY IT

Bob

So, first sorry for this long conversation and thanks again. After your sugestions I worked on it, this is what I get now: I changed the servo horn hole, now I'm using the 3rd hole and not the 2nd as the manual says, I set up the sencond linkage and my gyro limits are 119 and 137 when the stik is centered i have a slightly pitch but not so much, I think i'll adjust it with the trim, I think it should work this way.

Mark

[Finless]

You should not use trim to center it. The 611 operates the best if the ends are between 110 and 120. Yours are a little high. Anyway dont trim the radio.

Bob