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DierWolf
04-29-2008, 03:28 PM
Well something very very wierd happened to my Bro's Esky Transmitter/Reciever.

Upon fixing it yesterday after work i turned on the transmitter and then plugged the heli in..

Everything was working reverse!!! (servo Wise) as if we put in different servo's... All dipswitches were as normal.

Also the left Stick acted as Rudder (normal), RPM (motor) and Elevator!!!!!
while the right stick acted as Cyclic (normal), and PITCH!!.

The Hov/Pitch knob on the top left acted as Elevator!.

We thought it was the reciever so tried my reciever on it, and same thing.. so we deduced
it must be the transmitter (this is the same transmitter that kept having bad pots)

Anyways after trying to configure it every which way and couldnt because the only way it would work is with the Throttle switch pushed up (which means the heli will not initialize this way) i started playing with some switches.

In the back, i switched this switch making them both be on OFF and that fixed the problem with the Pitch putting it back on the Left Stick (but hov pit knob no long works) But that was ok and i will tell you why in a minute. This also put back the Elevator on the right stick.

http://i30.tinypic.com/14liy9y.jpg

Now all i had to do was swap channel 1 and 6 and move the pitch servo to the right hand side of the heli (as you would if you bought servos that worked the opposite way of the esky servos) (someone verify if this switch can reverse, reserse servo's for me :) easier than swapping around your DTS Mod.

Ok all Set up now.. and guess what !!!!

That switch (on his radio anyways) made the same old esky servo's move at an alarming fast rate and the throw is MUCH MUCH MORE!!!

Even the RPM's on the motor has gone up! never heard the motor scream so high.... I am having a funny funny feeling its the Radio itself thats limiting the throw on the servos (including the Collective stick).

The throw is So much so that on hard cyclic or elevator it will pop off the linkage rods on the servo... I had to take the old balls from the plastic stock swash (the inside ones with the longer standoff) and put them on the Cnc Head so they would not pop off the links anymore.

Response if like out of this word, the servos are moving faster than ever! Just as fast and i even dare say FASTER than my SG90's! (again another reason i think its the transmitter slowing things down)

Anyways i got his bird working again.

I want to ask someone to test this for me.... simply move that one switch over and see if your servos's are moving Faster and with much more throw (like 70 to 80 degrees).

Also let me know if that swaps the pitch/elevator channels.

I ordered him another Esky radio but its flying like the wind as it is now, just dont know what will screw up on it next LOL so ordered one just in case.

Oh also the HH gyro switch no longer works for some apparent reason only in rate mode which is good for his ass, he needs to get used to using his rudder or he will never progress.

Ian 777
04-29-2008, 03:41 PM
Sounds Like Too Many Mushrooms Man

helihathnofury
04-29-2008, 03:43 PM
Just done what you asked, Wolfie. Sure enough, the servo throws are greater and they move faster. Not tried the motor though. As for the pitch/roll, no change. Wierd!!!!!!!

Mike

DierWolf
04-29-2008, 03:48 PM
Ok thanks, thats what i thought, its sort of a dip switch for Exponential sort of, one for newbs and the new direction for pro flyers!.

i didnt think your pitch/elevator would swap, think thats just his radio going stupid.

So there you go guys, even your upgraded Servo's arent moving as fast as they should if the switch is on ON.... radio itself is slowing everything down.

Guess this solves the "Sluggish/Slow Belt CP" Problem.

how do yu like the movement of your tail servo LOL, its like its on Crack!

DierWolf
04-29-2008, 03:49 PM
Sounds Like Too Many Mushrooms Man


Speaking of Shrooms, lemme go check my Cabinet ROFLMAO

helihathnofury
04-29-2008, 03:51 PM
I was amazed at the swash -plate movement. Like it was wild!!!!!!!!

DierWolf
04-29-2008, 03:52 PM
Yes but just watch out, if you have the Trex Style swash the balls are too close to the post and on hard cyclic will pop off.

its not a problem with the Esky Cnc Swash.


Guys if your not good at hovering yet, i do not recommend this Mod, everything is that much more reactive with it.

Swash plate Max angle now is at least 20 degrees more!! with the heli sitting on its skids and giving hard cyclic or Elevator the main blades are flying past the boom with about 1/2 inch clearnace where as it was almost 2 inches away before.... and servo's are super fast..

helihathnofury
04-29-2008, 03:58 PM
It's amazing, Wolfie - don't think I am good enough yet, but would be interested in how she flies, if you care to give it a go!!!!!!!!!!!

DierWolf
04-29-2008, 04:05 PM
DO NOT DO IT!!!!!

i just tried it on my UNFRIED radio, yes it does make the servo's faster but it also switches the elevator and pitch channels!!

suggest you check yours again.. push elevator up you will see it will change the Collective/pitch.

So only seems my brother can take advantage of this DAMN and his heli is so damn reactive with it..

Ah well i cant do it to mine until my radio goes haywire as well LOL...

SO GUYS DO NOT DO THIS DIP SWITCH MOVE UNLESS YOUR RADIO WENT NUTS AND SWITCHED ELEV AND PITCH CHANNELS ON ITS OWN!!!...

DierWolf
04-29-2008, 04:06 PM
It's amazing, Wolfie - don't think I am good enough yet, but would be interested in how she flies, if you care to give it a go!!!!!!!!!!!

I am going over by him today for some flying i will take some video of it for you compared to my belt without the switch moved, trust me as you saw with your own test servos are VERY FAST!...

I could however to get this to work on my bird is swap out the pots on the elevator and collective and then flip the switch.

Ian 777
04-29-2008, 04:18 PM
If its making stock servo's quicker than sg90's what does it do with sg90's?

It sounds very wierd that they have slowed down the servo's to make the thing more docile????

Surely just reducing the throw would be better?

DierWolf
04-29-2008, 04:33 PM
What it does is not that really..

what the radio is doing is slowing down the rate of any gyro... so on a modified esky radio with stock esky servos with switch flipped will be faster movement than a simular setup with SG90's with switch not flipped.

So safe to say with the SG90's it would be even faster as right now your not getting the full potential of any servo with the switch on on..

like i said, this switch also flips the pots on the elevator and collective so unless you switch the pots in your radio itself its sort of useless.

Even more stupid, you need to flip this same switch when trying to connect the radio to the simulator cable for it to work, so your flight sim would always be much more reactive than the real thing.

another_finn
04-29-2008, 05:56 PM
Yep, that's only one of the reasons why CP2s are so twitchy... This switch flips between King II / Belt CP style mixing (swash up for positive) and CP2 style (swash down for positive). In the CP2 mode the servos are much more responsive, with visibly greater throws. The transmitter is definitely dumbing things down for the bigger helis.

I didn't know it needed to be flipped for sims - I thought it would be enough to flip the other one to disable CCPM. When I tested, I didn't see this one having any effect when the Tx was in fixed pitch / 90 degree swashplate mode.

psilo
04-30-2008, 11:01 AM
Wolfie, now you see why we all harped on about the difference a computer tx made to the belt cp :nanabobo.

Did you get a computer tx for the EXI in the end?

DierWolf
04-30-2008, 12:00 PM
Nope exi flies with the stock TX...

Like i said from since the last forum, i didnt know why my bro's heli was so sluggish and slow... My servo's move at a normal rate (faster than his would when his was in normal mode) only now with his dip switch flipped is it faster than mine, and trust me i dont care for it at that speed.... flip it for yourself and see, i'm positive its even faster moving than with a computer tx.

think its sending more voltage to the servo's causing the super fast movement..

Ian 777
04-30-2008, 02:37 PM
Surely Instant stick reaction has to be good, isn't it the increased control throw thats making it too twitchy. If the arc that the arm moves through is greater you can reduce the throws with the servo horns and still keep the fast response, only thing is that because the arm is moving through a greater angle the control movement will be greater at the middle of the arc than the ends, giving it negative expo.

Life is so much easier with a computer TX:roll:

Is it possible for the Tx to control the voltage to the servo? I thought the servo amp had a constant feed through the RX at the voltage supplied by the BEC (mind you I know nuffin about electronics)

DierWolf
04-30-2008, 03:15 PM
Dont know LOL...

Just something i tought of, servo's have a different speed depending on its input voltage (4.8 or 6v)

psilo
05-01-2008, 03:11 AM
There is no way that a tx can control voltage to the servos, this is controlled by the output of the ESC/BEC into the rx and is constant (assuming your bec is not overworked).

When you flick that switch you are just changing the ccpm mixing (into HBK2 mode), so it is probably increasing the swash mix and possibly endpoints. With my computer tx I can also achieve crazy servo throw/speed by moving my swash mix up to 100% instead of 60%. I would guess that the Belt mix is around 50% which is limiting the throw of the servos and taming it down, as when I set my DX7 to 50% I get the same pitch range etc that I got with my stock tx.