601 on razor

[buster1]

I am installing the Futaba 601 gyro in my Razor,
Question, do you guys think I need the metal shield under the gyro or can I just get away with the futaba tape. I used the shield for another model and I am short.
I am using the DX7 radio - so, glitching shouldn't be a problem,
What do you think?
Jeff

[RobRoy]

The shield protects the gyro sensor from interferance, having a DX7 isn't going to help that. With all the CF in the Razor, I would say it is a must use item.

[buster1]

does anyone know where I can order some more futaba gyro tape and another metal shield for underneath the gyro - it seems to be a mystery as how to get these items once you have removed from another heli. or need additional supply,
Thanks,
Jeff

[DebianDog]

Metal shield?

I use double sided 3M tape from Lowes or Home Depot.

I SERIOUSLY doubt that a CF Razor is going to generate more noise than my CF Predator Gasser does ;)

[RobRoy]

You're right, it's probably just a ploy for Futaba to charge us another $100 for the gyro. I used to use the 3M tape also, but in cold weather it gets a little to hard and causes the tail to kick. I never use to use the metal shield either, then one day I started having some problems with my tail twitching, and at the recomendation of another heli pilot, put the shield in, and no problems since. Been several months now with rock solid tail. As for the Razor causing more noise, I bet the head speed is a little faster, so building up a static charge is probably a little more prominent in the razor than it would be in your CF Predator Gasser, but that's just a guess. Futaba puts it in there, I feel, for a reason, better safe than sorry.

[DebianDog]

Is a 601 the only one that has a shield? My 240, 401 and Logitech do not have such things.

For RF generation: I will put a spark plug firing motor a 1000's a times a minute on an unshielded cable up against a smooth running electric any day. :wink:

[RobRoy]

Your spark plug is in a closed loop system, firing inside of a metal case, acts much like a fairday shield, as long as you don't ground your plug wire to your frame, probably puts out very little interferance. Now as for a smooth running electric, big motor=large magnetic field, high powered ESC=large electrical field. Look at all the problems people had with the t-rex's early on. Most still today are choosing to go with a DX6 or DX7 system to avoid rx glitching, but still the gyro is unprotected. No the gy240 and gy401 doesn't come with the metal shield, not sure why. I just know the 601 and 611 does, and I've used it and for me anyway it solved a problem.

[DebianDog]

I may have to get the Gasser Master to weigh in on this. The Gator. He has also done an eRaven conversion so he can tell me if I am off my rocker.

[RobRoy]

I'm no expert either, just go by what I see, and about half of what I hear. The spectrum radios seem to have been a god send for the electric fliers. Maybe the electrics put out a different freq. of interference. I don't really have much exposure to gassers, but the ones I have seen don't seem to suffer much from glitching, but that could be all due to the builder/maintainer keeping it that way. Also have yet to see a gasser with a spectrum in it.

[DebianDog]

I have yet to see anything larger than a 50 with a Spectrum either. ;)

[Tom Fiddler]

I don't really know what the shield does. If RF is a problem I don't see the shield doing much as the rest of the gyro could be next to parts of the frame.
As far as Gassers vs Electrics tough call for me, I have never had a problem with either!

If you feel safer with the shield , Cut one out. it's just metal not unknownium :D

I use the Clear double stick tape from 3M, I always use 2 layers on the gyro.
Just what works for me.
By the way I use 401 gyros....don't fly well enough to spend more money :mrgreen:

[DavidH]

The metal plate is for when the sensor is mounted on a Carbon Fiber surface. When I was mounting directly to carbon fiber I always used the metal plate. When I am mounting to the metal gyro mounts like on the Fury I just use mounting tape.

The plate was an after thought after the GY601 was released. When I got my GY 601's right after they were released. There was no metal plate with them. I received my metal plates about a month after I got the gyro. The Futaba engineers found out the metal plate helps prevent drift when the sensor is being mounted on a carbon fiber surface. Yes they did test with the metal plate and without and it made a difference. I have seen the metal plates is GY 401, 502 also.

David

[buster1]

can you guys tell me what is the optimal length from the center of the servo arm to the ball link for the 601/611. Just want to make sure I am mounting the ball the appropriate distance on the servo control arm.
Thanks,
Jeff

[WillJames]

I use arms that are longer than the servo wheel they have on the servo when it ships to you. It varys from machine to machine.

On my Razor I am running a Logictech and the ball is about 16mm out from the center.

On the 611 on my Ion-X the ball is about 13.5 - 14mm out from the center.

*note - both of these measurements are approximate, I did the best I can measuring.

HTH,

[DavidH]

Just have the ball on the servo arm so that with 100% travel adjustment both directions. That you get full travel in each direction. You don't want the travel adjustment less than 100%. Usually 14-16mm out from center will give you the proper set up on an MA heli.

David