HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Mar 07, 2012, 06:03 PM
Rocket Programmer
jasmine2501's Avatar
United States, AZ, Mesa
Joined Jul 2007
25,386 Posts
Yeah plugs really aren't super important and there's a lot of ways to carry electricity. I am not a fan of banana plugs because they can be plugged the wrong way easily. But you highlight the difficulty - you have to choose a type and stick with it, or your flight box gets full of adapters and you never have the one you need.
jasmine2501 is offline Find More Posts by jasmine2501
Reply With Quote
Sign up now
to remove ads between posts
Old Mar 07, 2012, 10:28 PM
Registered User
United States, CA, Berkeley
Joined Feb 2012
38 Posts
Yeah, these are actually polarised so I just need to conect them the right way the first time, and then it becomes easy. . .
Gnudoll is offline Find More Posts by Gnudoll
Reply With Quote
Old Mar 09, 2012, 07:36 AM
Tom
United States, AZ, Tucson
Joined Dec 2011
254 Posts
Quote:
Originally Posted by jasmine2501 View Post
. I am not a fan of banana plugs because they can be plugged the wrong way easily. But you highlight the difficulty - you have to choose a type and stick with it, or your flight box gets full of adapters and you never have the one you need.
Not if they are HXT paired banana plugs - they only fit one way with the correct polarity. I've converted everything to them because they will carry way beyond any current produced by a 2200mah 11.1 battery. And when you fully seat them, they aren't coming apart on their own unless you had the most spectacular crash in history.
tom4416 is offline Find More Posts by tom4416
Reply With Quote
Old Mar 09, 2012, 10:20 AM
Rocket Programmer
jasmine2501's Avatar
United States, AZ, Mesa
Joined Jul 2007
25,386 Posts
Quote:
Originally Posted by tom4416 View Post
Not if they are HXT paired banana plugs - they only fit one way with the correct polarity. I've converted everything to them because they will carry way beyond any current produced by a 2200mah 11.1 battery. And when you fully seat them, they aren't coming apart on their own unless you had the most spectacular crash in history.
Yes those are ok because they put the male/female on each side so you can't plug them wrong. The thing I don't like about those is they are hard to get apart. Anderson plugs are easy to unplug, but they won't come unplugged by accident.
jasmine2501 is offline Find More Posts by jasmine2501
Reply With Quote
Old Mar 09, 2012, 08:23 PM
Registered User
United States, CA, Berkeley
Joined Feb 2012
38 Posts
Quote:
Originally Posted by tom4416 View Post
And when you fully seat them, they aren't coming apart on their own unless you had the most spectacular crash in history.
And then it would be a good thing for it to disconnect. Speaking of crashes (yes, already. Go ahead, rub it in. Gust of wind caught the heli and tossed her on her side. ) I ordered a CNC head and tail rotor set from xheli today and should be getting it by the middle of next week. One question though:

I made the mistake of not having the wires in place and checked out before charging them, and I came across the negetive side of the esc with the hot lead accidentially (which is *why* you do not charge the leads until after your connection is good, of course). What I'm seeing now is that I have about half travel on all my servos, and cannot bring the throttle to 0 (or likely 100, for that matter), looking like I have between 25% and 75% on all controls. While I'm pretty sure this is from the arcing, I was wondering which bit was most likely the damadged one: ESC or Rx? I know I'll need to replace one of them, but which should I start with? I may have been able to get away without the gust of wind breaking anythng, if I had been able to 0 the throttle. what broke was one of the main rotor holders as the control arm snapped free. The Rotor and tail assys I'm getting are the CNC ones from EXI. Thoughts?
Gnudoll is offline Find More Posts by Gnudoll
Reply With Quote
Old Mar 09, 2012, 11:26 PM
Rocket Programmer
jasmine2501's Avatar
United States, AZ, Mesa
Joined Jul 2007
25,386 Posts
Ouch... hard to say... all you can do is change one thing and hope that's it. You can check the receiver by trying to run it on a receiver battery instead of from the ESC.
jasmine2501 is offline Find More Posts by jasmine2501
Reply With Quote
Old Mar 14, 2012, 07:40 PM
Tom
United States, AZ, Tucson
Joined Dec 2011
254 Posts
And if you don't own a receiver battery, it's very easy to make one from three AA cells wired in series and the pigtail off an old servo. Had to do it for setup on a clone and didn't have a dedicated RX battery. It lasted for many hours of constant checking before voltage finally dropped off too much to activate the servos.
tom4416 is offline Find More Posts by tom4416
Reply With Quote
Old Mar 22, 2012, 07:47 AM
222 km/hr Parkjet flyer
solentlife's Avatar
Latvia, Ventspils pilsēta, Ventspils
Joined Jan 2010
8,362 Posts
Its a SE V2 clone that someones flipped the Gyro on top instead of under the boom.

second tail rotor blades should flop about - they straighten under centrifugal force.
solentlife is offline Find More Posts by solentlife
Reply With Quote
Old Mar 22, 2012, 07:50 AM
222 km/hr Parkjet flyer
solentlife's Avatar
Latvia, Ventspils pilsēta, Ventspils
Joined Jan 2010
8,362 Posts
Quote:
Originally Posted by tom4416 View Post
And if you don't own a receiver battery, it's very easy to make one from three AA cells wired in series and the pigtail off an old servo. Had to do it for setup on a clone and didn't have a dedicated RX battery. It lasted for many hours of constant checking before voltage finally dropped off too much to activate the servos.
Or go to local electrical shop ,... buy a 4 cell holder ... put 4 AA or AAA NiMH batterys in, solder a servo lead on ... cover in tape to keep all snug ... charge it up and have a PROPER 4.8v Rx pack.

I make Rx packs for my non electric models ... never had a failure yet in near 40yrs. in one I made up.
solentlife is offline Find More Posts by solentlife
Reply With Quote
Old Mar 22, 2012, 09:31 AM
Rotor Controller
CaptJac's Avatar
Aachen Germany
Joined Dec 2007
1,974 Posts
Quote:
Originally Posted by Gnudoll View Post
Speaking of crashes (yes, already. Go ahead, rub it in. Gust of wind caught the heli and tossed her on her side. ) I ordered a CNC head and tail rotor set from xheli today and should be getting it by the middle of next week. Thoughts?
1. How easy it is for beginners to ignore the experience of others.

2. How easy it is to crash and to blame everything else except what 99 out of 100 times causes the crash - pilot error - lack of training - insistence you can do it yourself and you don't need no darn help - except maybe ask a few questions.

3. How easy it is to crash when you don't know what you are doing and you want to do it yourself.

4. How everyone else crashes but you are better than everyone else and more careful and you can learn by yourself and you don't need anyone else - until you realize YOU are everyone else.

5. How easy it is to get your back up and defend yourself and your gender and to blame everything else - including the wind.

6. How there is NO end to the cycle of crashing and replacing parts when you learning on your own until you get so discouraged or run out of money (which ever comes first) that you give up. The success ratio is dismal.

7. Gender has nothing to do with smart or dumb or stupid or stubborn or pig headed. Brains might be a factor though.

8. What a shame so many beginners ignore the most important advice of all - DON'T TRY TO DO IT ON YOUR OWN!! GET SOME HELP!!

9. Asking questions and reading is great but it is NO substitute for having someone standing at your side with years of experience who can pre-flight your heli and help you learn.

10. There is an awful LOT of GOOD advice on these forums - backed by YEARS of experience. Jasmine is one of the few who tries in all earnest to help beginners and especially to encourage and not discourage - even when the advise is ignored.

Of course - nobody is pointing the finger of blame - these are just comments passed along from the older generation to the newer generation and ... learned the hard way - which is usually the only way we learn - if we ever do.
CaptJac is offline Find More Posts by CaptJac
RCG Plus Member
Last edited by CaptJac; Mar 23, 2012 at 05:59 AM.
Reply With Quote
Old Mar 24, 2012, 12:59 AM
Registered User
Joined Mar 2012
14 Posts
It is hard , and it's always dangerous specially with the big helis to be on your own.

Me , i'm getting a mcpx and ordered a 250 to sit by and start tinkering with it slowly , at least the 250 doesn't intimidate me as much , but i will have to learn on my own through reading / watching videos simming and well i have to accept that i may crash sometime.

But for example i have no club where i live , small city , most popular thing here are rc cars and going to a hobby shop ended up being of no help.

Is one supposed to give up on the hobby then? or try to learn as much as possible from valuable resources such as you and Jasmine?

At least i hope i'm doing everything correctly , came from 4 channels , now mcpx and will clock in some more time on the sim with the 250 transmitter , and well when time comes other than asking some questions i can't really see how to improve things short of going on a journey with my heli to find clubs on other cities.

Not saying this is op's case but for me it is, only difference is i wouldn't go for a 450, even though it's more stable i would probably be shaking having it on my yard and thinking of everything that could go wrong, not that the 250 isn't dangerous and i won't take it lightly for sure.

For me right now the hardest part is to keep myself practicing , since i'm waiting for the mcpx and the 250 all i do is daydream about it and sulk since it didn't arrive this week haha , but yeah if i don't fly my 4ch for a day it already feels weird when i pick it up again so i must keep practicing meanwhile and hopefully next week they will be here.
plugm is offline Find More Posts by plugm
Reply With Quote
Old Mar 24, 2012, 01:59 AM
Registered User
Joined Mar 2012
203 Posts
Well for now, I'm on the Phoenix SIM. And after I can hover there, I'm going to try and hover (after I build) my TREX 450 kit.

I now know a good LHS, should help. I've asked about clubs, Maybe one way down in Morgan Hill. A long ways to drive!

There are tutorials out there, even video.

I'm working on making a set of training wheels.

Will see where it goes from there...

Alan KM6VV
KM6VV is offline Find More Posts by KM6VV
Reply With Quote
Old Mar 27, 2012, 02:18 PM
Registered User
United States, CA, Berkeley
Joined Feb 2012
38 Posts
I'm in the same boat as plugm, actually. The big thing in this area is RC cars, which I have no interest in. There are so few helicopter pilots in this area that my LHS does not even carry parts comparable with my helicopter. I also have no indoor area to practice, so I am at the mercy of the weather. Yes there will be crashes, and I will likely have to rebuild my helicopter several times. As it is, I have to ground the bird until I can source the rx and ESC. That may take a few months, as I have another event I need to save up for. Likely, it will be after June before I can get them.
Gnudoll is offline Find More Posts by Gnudoll
Reply With Quote
Old Mar 27, 2012, 02:23 PM
Registered User
United States, CA, Berkeley
Joined Feb 2012
38 Posts
One question, the new head seems to have a bit of slop, which seems to be on the shaft itself. At the very least I can move the swashplate just a tiny bit side to side... any thoughts?
Gnudoll is offline Find More Posts by Gnudoll
Reply With Quote
Old Mar 27, 2012, 03:05 PM
My other addiction!
norcalheli's Avatar
Marysville, Ca., US
Joined Jan 2007
1,676 Posts
Gnudoll,

You have at least two great helicopter specialist shops in the Bay Area, Grand RC in Sunnyvale, www.grandrc.com; and Helicopter World in San Jose, www.heli-world.com.
Both have a full selection of true Align parts, with Grand RC having probably the best selection of parts for the T-Rex 450SA. Check them out.

To those who keep posting that they are "afraid" or "intimidated" by the 450 size, what on earth would you have done when everyone learned on a .60 nitro with a 5 ft. rotor diameter?? A 450 is not a "big" heli. It is classed as a "mini".
norcalheli is offline Find More Posts by norcalheli
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion New T-Rex 450 FPV Setup, Newbie Seeks Advice jarod120 FPV Talk 37 Mar 12, 2012 03:54 PM
Help! T-Rex 450 Pro 3GX Setup Problems BimmerM3 Mini Helis 3 Sep 06, 2011 09:40 PM
Discussion AFPD training for T-REX Skunkerama Mini Helis 3 Dec 19, 2006 09:58 AM
Discussion T-Rex 450 DIY TRAINING landing GEAR lauri Mini Helis 6 Jul 06, 2006 07:36 AM
Wanted *CLOSED* WTT my Microheli T-Rex setup for your T-Rex SE V2 H0ndaJunkie Aircraft - Electric - Helis (FS/W) 5 May 31, 2006 12:49 PM