RunRyder RC
 6  Topic Subscribe
WATCH
 3 pages [ <<    <    ( 1 )     2      3     NEXT    >> ] 2849 views POST REPLY
08-08-2009 01:37 AM  8 years agoPost 1
Steeltoes

rrApprentice

Mankato MN

My Posts: All  Forum  Topic

Has anyone had this problem with the Mini G? The gyro allows the nose to drift to the right ever so slightly. Checked out everything else, even parameters on the G-View

AMA #913061

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
08-08-2009 01:42 AM  8 years agoPost 2
Elgreco

rrVeteran

Montreal,QC-Canada

My Posts: All  Forum  Topic

How's your trim ?
Maybe it moved and you haven't noticed.
Just a thought

Trex 550 V-BAR, Trex 700 V-BAR, N5-os55VBAR, TREX700E V-BAR /X9503

PM  EMAIL  GALLERY  Attn:RR  Quote
08-08-2009 01:45 AM  8 years agoPost 3
Steeltoes

rrApprentice

Mankato MN

My Posts: All  Forum  Topic

No trim, no subtrim

AMA #913061

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
08-08-2009 01:52 AM  8 years agoPost 4
canbarelyhover

rrVeteran

Sunnyvale, CA

My Posts: All  Forum  Topic

i've had mine drift before. the doublesided tape i was using was too hard(some brand from the H/W store). switched to futaba tape and drift is gone or at least slow enough that i don't notice it. using on a 50-nitro with the 2-layer/steel plate/1-layer mount method as per instructions.

Citizen #830

PM  EMAIL  GALLERY  Attn:RR  Quote
08-08-2009 02:40 AM  8 years agoPost 5
helirulz

rrVeteran

Singapore

My Posts: All  Forum  Topic

crank up the gain to begin with.
If it doesn't stop drifting, there must be a mechanical imperfection somewhere that's causing the gyro to behave this way.

Could be anything ranging from out of balance issues or bad bearings.

Much as i like the way the Mini G feels in flight, it is very finicky about a perfect mechanical setup. If there's anything wrong with your setup, it shows up very prominently.

If you cannot get rid of the drift, use some subtrim to counter it. That should be your last option

PM  EMAIL  Attn:RR  Quote
08-09-2009 06:51 AM  8 years agoPost 6
Steeltoes

rrApprentice

Mankato MN

My Posts: All  Forum  Topic

Reread the manual, apperently CY suggest to have setup about 8-10 deg to the right. I found this interesting, I'll have to call CY monday.
Oh BTW it's on a Rex 450

AMA #913061

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
08-09-2009 05:55 PM  8 years agoPost 7
Buzzin Brian

rrProfessor

College Station, Texas

My Posts: All  Forum  Topic

We will not be available on Monday. Both me and CY will be at IRCHA. You can e-mail me directly and I will try to help you between traveling.

tech@curtisyoungblood.com

Brian

Build it, fly it, crash it. Repeat as often as needed.

PM  EMAIL  GALLERY  Attn:RR  Quote
08-20-2009 08:19 PM  8 years agoPost 8
soggy

rrApprentice

thailand

My Posts: All  Forum  Topic

i got problem with drifting too....after all resetting, subtrim 0 ,and all checks... it still creep slowly to right even without flying...i emailed CY about it but no reply

all test is on the bench and its giving me lotsa headache...

might thinking to let go this and get a spartan or other if there's still no help from CY about this gyro

my setup is MIni G + MKS 8910 ...in HH mode it slowly creep to right side....rate mode it stays perfectly....the "question " is how to make the gyro stay at one place without creeping in HH mode...

PM  EMAIL  GALLERY  Attn:RR  Quote
08-20-2009 08:27 PM  8 years agoPost 9
Buzzin Brian

rrProfessor

College Station, Texas

My Posts: All  Forum  Topic

I know nothing about this. E-mail requests for service to me at tech@curtisyoungblood.com and I will answer your questions. Also I know nothing about the servo you describe, however I would ask have you flown the heli? What is the gain?

Brian

Build it, fly it, crash it. Repeat as often as needed.

PM  EMAIL  GALLERY  Attn:RR  Quote
08-20-2009 08:29 PM  8 years agoPost 10
soggy

rrApprentice

thailand

My Posts: All  Forum  Topic

hii...yes...just flew it last week....gain is 80% and more it start to wag...

PM  EMAIL  GALLERY  Attn:RR  Quote
08-20-2009 08:32 PM  8 years agoPost 11
soggy

rrApprentice

thailand

My Posts: All  Forum  Topic

email sent

PM  EMAIL  GALLERY  Attn:RR  Quote
08-20-2009 09:25 PM  8 years agoPost 12
daredevil666

rrNovice

sweden

My Posts: All  Forum  Topic

mine did the same but i changed the gyro tape to futaba and the drift is gone.. this gyro is very sensitive to vibrations..

PM  EMAIL  GALLERY  Attn:RR  Quote
08-20-2009 10:07 PM  8 years agoPost 13
darkfa8

rrElite Veteran

Brick, NJ - USA

My Posts: All  Forum  Topic

had the same problem here... gyro is very sensitive to vibration, also make sure you're running enough gain in either HH or Rate - verify with the GView.

- Dan Goldstein
Team Revolectrix

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
08-20-2009 10:24 PM  8 years agoPost 14
soggy

rrApprentice

thailand

My Posts: All  Forum  Topic

but i test it on the table without starting the motor and it creeped to right....does it connect with the gyro tape too even without powering up?

thanks

PM  EMAIL  GALLERY  Attn:RR  Quote
08-20-2009 10:26 PM  8 years agoPost 15
soggy

rrApprentice

thailand

My Posts: All  Forum  Topic

some discussion i had on there

http://www.helifreak.com/showthread.php?t=157649

my issue is the tail creep to one direction even though there's no input to the rudder....this is bench testing

thanks

PM  EMAIL  GALLERY  Attn:RR  Quote
08-20-2009 11:04 PM  8 years agoPost 16
canbarelyhover

rrVeteran

Sunnyvale, CA

My Posts: All  Forum  Topic

mine creeps as well on the bench but it doesn't seem to affect in-flight performance. i've seen this mentioned in several threads and seems to be a widely known idiosyncrasy. although an annoyance to OCD types(me included), it's not a real problem IMO.

btw, this is a different issue than what the OP stated which is an actual in-flight drift due to vibration.

Citizen #830

PM  EMAIL  GALLERY  Attn:RR  Quote
08-22-2009 05:54 PM  8 years agoPost 17
Buzzin Brian

rrProfessor

College Station, Texas

My Posts: All  Forum  Topic

Sensitive head hold gyro can drift on the bench. Is is the earth turning that causes this. However most will not do this in the air. Generaly speaking drift in the air is usually caused by vibration. That is not to say that vibration is the only thing that can cause drift, but is the usuall culprit.

Brian

Build it, fly it, crash it. Repeat as often as needed.

PM  EMAIL  GALLERY  Attn:RR  Quote
08-22-2009 05:59 PM  8 years agoPost 18
helirulz

rrVeteran

Singapore

My Posts: All  Forum  Topic

Sensitive head hold gyro can drift on the bench. Is is the earth turning that causes this.
WOW! I learnt something new today!

PM  EMAIL  Attn:RR  Quote
08-22-2009 06:14 PM  8 years agoPost 19
canbarelyhover

rrVeteran

Sunnyvale, CA

My Posts: All  Forum  Topic

Does this mean folks in Australia will see it drift the other way?

Citizen #830

PM  EMAIL  GALLERY  Attn:RR  Quote
08-22-2009 06:30 PM  8 years agoPost 20
Sean Williams

rrElite Veteran

Santa Clarita CA

My Posts: All  Forum  Topic

Curtis helped me out with this back at the Huntsville fun fly. I had the same drifting problem. What we found was that the pots for the rudder stick on my transmitter were dirty, and because I had the BLS 251 on there which has zero dead band, the gyro picked up on this and caused a drift. I put on an 8900G and the problem was solved.

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 3 pages [ <<    <    ( 1 )     2      3     NEXT    >> ] 2849 views POST REPLY
 Print TOPIC  Make Suggestion 

 6  Topic Subscribe

Tuesday, April 24 - 4:54 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online