RE: 22e v2 CNC upgrade setup

RE: 22e v2 CNC upgrade setup
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All Forums >> RC Helicopters >> Electric RC Helis >> Walkera Helis - Dragonfly, etc.. >> RE: 22e v2 CNC upgrade setup

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RE: 22e v2 CNC upgrade setup - 2/11/2007 8:17:18 PM

NY Rebel

Posts: 510
Joined: 2/23/2005
From: Flushing, NY, USA
Status: offline

OK, now you're moving everything in the right direction...but that arm hanging out WAY over there does not look pretty.

Here's what I came up with....Turn the servo mount around (put it right up against the body pin holder) that should move the spindle over far enough to get the proper geometry.

quote:

ORIGINAL: spOon2410

cmavr8: no my servos(actually my heli) is stock, minus the CNC.

tnoyce: yea it doesnt quite line up but i should be able to just drill new whole in the servo mount to fix that.

JT, NY Rebel: instead of elevating the front and lowering the back, like you said JT, it just elevates everything... I just tried unplugging the motor and increasing throttle. The back two servos move up, but the front moves down. This is with the front servo mounted in original position. I flipped it back over to original position, because im not sure that when the servo is upside-down that it lines up properly, like it shows in my pictures. Are you sure i need to flip my servo over and rotate the arm? Its a bit of work to get it mounted and im not sure that i could go back.
And no, my anti-rotation pin has lots of room to move.
Thanks,
spOon

(in reply to spOon2410)

Post #: 26

RE: 22e v2 CNC upgrade setup - 2/11/2007 8:36:09 PM

NY Rebel

Posts: 510
Joined: 2/23/2005
From: Flushing, NY, USA
Status: offline

I just did it (turning the mount around) on mine and everything will line up that way.... now, on the base of the mount, you may need to file a little off of one side to get clearence for the servo arm when it goes in the full down position.

(in reply to NY Rebel)

Post #: 27

RE: 22e v2 CNC upgrade setup - 2/11/2007 8:47:31 PM

spOon2410

Posts: 373
Joined: 10/28/2006
From: Vancouver, BC, CANADA
Status: offline

If i turn it around, the servo will be facing the wrong way! Or if i mount the servo facing the right way there isnt any space because of that plastic piece that sticks out.
I can see how that would orientate the servo on the other side, and back a ways though, but it just doesnt fit that that plastic arm sticking up there. Can i cut that off?
spOon.

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spOon.

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Post #: 28

RE: 22e v2 CNC upgrade setup - 2/11/2007 9:02:54 PM

NY Rebel

Posts: 510
Joined: 2/23/2005
From: Flushing, NY, USA
Status: offline

Ah....the plastic arm....I had removed mine so long ago I had forgotten it was ever there.

You are talking about the L shaped arm that sticks up above everything right?

quote:

ORIGINAL: spOon2410

If i turn it around, the servo will be facing the wrong way! Or if i mount the servo facing the right way there isnt any space because of that plastic piece that sticks out.
I can see how that would orientate the servo on the other side, and back a ways though, but it just doesnt fit that that plastic arm sticking up there. Can i cut that off?
spOon.

(in reply to spOon2410)

Post #: 29

RE: 22e v2 CNC upgrade setup - 2/11/2007 9:03:45 PM

spOon2410

Posts: 373
Joined: 10/28/2006
From: Vancouver, BC, CANADA
Status: offline

Or do i drill new holes to mount it to?

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spOon.

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Post #: 30

RE: 22e v2 CNC upgrade setup - 2/11/2007 9:05:57 PM

NY Rebel

Posts: 510
Joined: 2/23/2005
From: Flushing, NY, USA
Status: offline

I moved it forward as far as it would go and drilled new holes..

Notice just under the servo arm the relief filed there to give the arm some clearance.

quote:

ORIGINAL: spOon2410

Or do i drill new holes to mount it to?

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< Message edited by NY Rebel -- 2/16/2007 12:06:41 AM >

(in reply to spOon2410)

Post #: 31

RE: 22e v2 CNC upgrade setup - 2/11/2007 9:10:43 PM

spOon2410

Posts: 373
Joined: 10/28/2006
From: Vancouver, BC, CANADA
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yea thats the arm, how do you suggest i remove it?
whats it even for?
if your battery is up there, where is your rx? down below?

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spOon.

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Post #: 32

RE: 22e v2 CNC upgrade setup - 2/11/2007 9:23:32 PM

NY Rebel

Posts: 510
Joined: 2/23/2005
From: Flushing, NY, USA
Status: offline

I have no idea what that arm was intended for??

I took a hacksaw blade and carefully cut it off.

I'm so far away from stock I don't even know if mine qualifies as a 22e anymore

. My receiver is a JR RS6UL mounted on a board underneath the rear of the heli (you can see it peaking under there in the pic).

quote:

ORIGINAL: spOon2410

yea thats the arm, how do you suggest i remove it?
whats it even for?
if your battery is up there, where is your rx? down below?

(in reply to spOon2410)

Post #: 33

RE: 22e v2 CNC upgrade setup - 2/11/2007 9:25:07 PM

spOon2410

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From: Vancouver, BC, CANADA
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Hmm, i wonder if a dremel would be easier to get in there...

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spOon.

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Post #: 34

RE: 22e v2 CNC upgrade setup - 2/11/2007 9:27:31 PM

NY Rebel

Posts: 510
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From: Flushing, NY, USA
Status: offline

maybe..just be carefull not to take off more material than you need to.

quote:

ORIGINAL: spOon2410

Hmm, i wonder if a dremel would be easier to get in there...

(in reply to spOon2410)

Post #: 35

RE: 22e v2 CNC upgrade setup - 2/11/2007 11:04:13 PM

spOon2410

Posts: 373
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From: Vancouver, BC, CANADA
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alright i took off that L shaped plastic piece, that all went fine, then i drilled new wholes (a little bit tricky to get in there, and my holes didnt go straight down, but the screws went in fine). The servo is now upside down with the arm on the other side, and its directly under the swash...perfect!
All servos are working properly still. What you said about the front servo bottoming out when its all the way down was a problem for me too... I took out part of the plastic where it was hitting, but then realized it was hitting the screws mostly. It doesn't really stop much movement, so i think i will just have to live with that.
When i span the blades and just moved the right analog stick around, the heli started to rumble and shake dramatically, and the tail stabalizer would hit the ground...
Im not sure why this is, but Maybe because the flybar is rotating and causing a lot of drag on the system. I tried to fasten up those bolts that hold it in there, but my alen keys are too big or too small for the hole, so i couldnt get it tight. Could this be causing the problem?
spOon.

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spOon.

(in reply to NY Rebel)

Post #: 36

RE: 22e v2 CNC upgrade setup - 2/11/2007 11:11:34 PM

NY Rebel

Posts: 510
Joined: 2/23/2005
From: Flushing, NY, USA
Status: offline

Most definitely, you will have no control with that occuring. Your cyclic is literally fluttering all over the place.

The allen key that fits it is a .050 inch (that's the one I use anyway)
I have a .9mm (to small) and then go up to a 1.5mm(to big). I don't know if there's anything between those or not.

quote:

ORIGINAL: spOon2410

alright i took off that L shaped plastic piece, that all went fine, then i drilled new wholes (a little bit tricky to get in there, and my holes didnt go straight down, but the screws went in fine). The servo is now upside down with the arm on the other side, and its directly under the swash...perfect!
All servos are working properly still. What you said about the front servo bottoming out when its all the way down was a problem for me too... I took out part of the plastic where it was hitting, but then realized it was hitting the screws mostly. It doesn't really stop much movement, so i think i will just have to live with that.
When i span the blades and just moved the right analog stick around, the heli started to rumble and shake dramatically, and the tail stabalizer would hit the ground...
Im not sure why this is, but Maybe because the flybar is rotating and causing a lot of drag on the system. I tried to fasten up those bolts that hold it in there, but my alen keys are too big or too small for the hole, so i couldnt get it tight. Could this be causing the problem?
spOon.

(in reply to spOon2410)

Post #: 37

RE: 22e v2 CNC upgrade setup - 2/11/2007 11:20:51 PM

spOon2410

Posts: 373
Joined: 10/28/2006
From: Vancouver, BC, CANADA
Status: offline

Alright, maybe i will make a run up to the hardware store and see what i can find.
Have you flown yours yet NY Rebel? Or are you still having some problems?
Do you know how much wieght the CNC adds? because my heli deff feels quite a bit heavier, so maybe i will have to swich to a lipo. (not that i dont want to, just $$)
spOon.

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spOon.

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Post #: 38

RE: 22e v2 CNC upgrade setup - 2/11/2007 11:31:27 PM

NY Rebel

Posts: 510
Joined: 2/23/2005
From: Flushing, NY, USA
Status: offline

The flybar paddles actually control your blade pitch. That is what controls the direction your heli flies.
It would benefit you to go to a site that explains the theory of heli flight and what the different controls do.

The short of it is, your swash plate tilts the flybar cage, which changes the angle of attack on your flybar paddles (they are actually little wings flying through the air).
This change in the angle of attack (either positive or negative) cause the flybar to tilt (seesaw) which results in a change in the pitch (also again refered to as angle of attack) in the main blades (they are also "wings" ).
This change in the angle of attack causes the main blades to "push" against the air on one sector of the rotating disc while "pulling" on the opposite sector.
Notice I didn't say: side, front or back. That's because with a rotating wing you have to think of it in terms of sectors or quadrants.

Hope this gives you a general idea of what is happening with your heli.

If anyone reading this sees anything that I have said that is wrong ...PLEASE, feel free to correct me... I'm no aeronautic engineer