RunRyder RC
 2  Topic Subscribe
WATCH
 1 page 603 views
Scorpion Power Scorpion Power
10-23-2004 03:53 AM  13 years agoPost 1
Tap or Snap

rrApprentice

Port Richey, Florida​and Burlington,​Wisconsin

My Posts: All  Forum  Topic

I have been trying to read as much of the Posts on setting up the Predator. I notice that some of the AFR settings have a + and -. Does changing these settings from + to - , is this the same as reversing the servo. Im trying to grasp this Eccpm setup. Do any of the servos need reversed regardless of the + or - AFR setting. I did one Eccpm set-up. Thats my Kyosho Caliber 30. The manual stated what servos needed reversing and the + and - AFR settings. The radio is Futaba 7chp. I hope I made some sense out of this mess. Im trying to learn.

PM  EMAIL  GALLERY  Attn:RR  Quote
10-23-2004 04:04 AM  13 years agoPost 2
Tap or Snap

rrApprentice

Port Richey, Florida​and Burlington,​Wisconsin

My Posts: All  Forum  Topic

I think I found the answer

Hear it is .First, it is 120 degree. Second, set all of those channels, ail, elev, and pitch at normal, not reversed. Third, set the ATV's on all of these channels to +,- 100%.

Then set the AFR's to the value you need to get the pitch range you need and the cyclic throws you need. IF any channels need to be reversed, do it also with the AFR, i.e., go negative with it.

PM  EMAIL  GALLERY  Attn:RR  Quote
10-23-2004 04:05 AM  13 years agoPost 3
Tap or Snap

rrApprentice

Port Richey, Florida​and Burlington,​Wisconsin

My Posts: All  Forum  Topic

My next question

What will happen if you reverse the servo instead of reversing with the AFR?

PM  EMAIL  GALLERY  Attn:RR  Quote
10-23-2004 05:21 AM  13 years agoPost 4
SteveH

rrProfessor

Texas

My Posts: All  Forum  Topic

If you reverse the servo instead of reversing the AFR, the end result will be the trim is reversed.

The government cannot give you anything without first taking it from someone else.

PM  EMAIL  GALLERY  Attn:RR  Quote
10-23-2004 06:50 AM  13 years agoPost 5
JKos

rrProfessor

Redondo Beach, CA

My Posts: All  Forum  Topic

> If you reverse the servo instead of reversing the AFR, the end result
> will be the trim is reversed.

Um, what about the fact that the swash will not move properly with collective? If you have the swash moving correctly and then reverse one servo, you screw up the whole thing. Trim direction is not affected by the normal or reverse state of any given servo. The eCCPM algorithm takes trim settings and converts them to the necessary servo movements.

Individual servo direction setting (normal or reverse) is used to get the swash moving up and down correctly with collective, the AFR settings (w.r.t. + and -) is used to get the correct direction for collective, aileron, and pitch.

Steve and I ended up with a pretty good explanation of getting eCCPM setup in this thread: http://runryder.com/helicopter/t124157p1/

I just looked at my 9C setup for my PG. You will need to reverse one servo, the "elevator" servo (channel 6). I should say that is with the elevator servo in the non-push-pull setup position (right side of chassis).

- John

P.S. Here is one neat thing about eCCPM (or at least I think so). I say above that you'll need to reverse one servo. Well, you could either reverse channel 6 OR reverse BOTH channels 1 and 2. You'll just end up with a different combination of +'s and -'s in the AFR settings to get the controls going the right directions.

PM  EMAIL  GALLERY  Attn:RR  Quote
10-23-2004 01:35 PM  13 years agoPost 6
SteveH

rrProfessor

Texas

My Posts: All  Forum  Topic

John,

If you reverse the aileron and pitch servos, you can get the system working properly by going negative on the AFR setting. The problem is, you won't find the problem until you realize the trim is reversed.

Go ahead, ask me how I know!

The government cannot give you anything without first taking it from someone else.

PM  EMAIL  GALLERY  Attn:RR  Quote
10-23-2004 03:45 PM  13 years agoPost 7
JKos

rrProfessor

Redondo Beach, CA

My Posts: All  Forum  Topic

Steve,
Which radio are you referring to? On the 9C, if the swash moves the correct way for stick inputs, then the trims will always work the correct direction.

- John

PM  EMAIL  GALLERY  Attn:RR  Quote
10-23-2004 04:22 PM  13 years agoPost 8
SteveH

rrProfessor

Texas

My Posts: All  Forum  Topic

John,

The first time I set up an eCCPM machine, a Predator Glow SE, I was setting up on a JR 8103 radio, and my instructions did not even MENTION CCPM. I found it accidentally in the main menu under swash options. I didn't even know how to position the servos, and that's how I had it messed up in the beginning. So anyway, it was a learning experience for me, you know, learn from your mistakes.

The government cannot give you anything without first taking it from someone else.

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 603 views
Scorpion Power Scorpion Power
 Print TOPIC  Make Suggestion 

 2  Topic Subscribe

Friday, November 24 - 6:43 pm - Copyright © 2000-2017 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online