DS510 Servos Vibrating During Full Throttle

byter182 · 12-21-2012, 08:37 PM

Hey Helifreaks,

I'm the original owner of a Trex 500 ESP upgraded to an i2 FBL head w/a BeastX FBL controller. Heli's never been in a crash. Recently, I changed the main gear to the slant main gear w/a helical pinion. For some reason, on high throttle my DS510 cyclic servos visibly oscillate which is very noticeable during a hover as you can see the whole heli wobbling at the skids. Main blades are tracking perfectly. Prior to changing the main gear, I had the same issue w/one of the servos which I subsequently changed to a new one. Problem went away. However, now I'm getting that same oscillation on all three cyclic servos.

Anyone have a similar problem that may be able to shed some light as to how to resolve this?

Thanks in advance,
Byter182

Ghostrydyr · 12-22-2012, 09:54 AM

could be a million things, what servo are you using for the tail, if its a reoccurring prob with your cyclics, could be the tail servo is causing it,

byter182 · 12-22-2012, 10:16 PM

Using an Align DS650 tail servo. So where do I start looking?

bstanley72 · 12-23-2012, 08:51 AM

As said above it could be many different things. However, are you sure the wobble is related to the servos? It sounds like to me you have a vibe somewhere. I had a similar problem on my 500. The bird would oscillate and it was most noticeable in the skids. Turned out it was a shot motor bearing.

blax1 · 12-23-2012, 08:00 PM

Probably vibration related the BeastX is giving involuntary inputs to servos

Take mains and TR's off spool up, watch for involuntary swash deflections through the full collective range it should be nice and even up and down, dont move the cyclic stick when doing this.

byter182 · 12-23-2012, 11:56 PM

Quote:

Originally Posted by blax1

Probably vibration related the BeastX is giving involuntary inputs to servos

Take mains and TR's off spool up, watch for involuntary swash deflections through the full collective range it should be nice and even up and down, dont move the cyclic stick when doing this.

Good idea.

Will give it a try and tune back in.

701superjet · 12-25-2012, 03:15 PM

Ya I would say it's probably vibration and the best x. Also could be getting interface from the high voltage side. Like having esc/batt wires ran to close to other electronics.

12-21-2012, 08:37 PM	#1
byter182 Registered Users Join Date: Jan 2009 Location: Florida	DS510 Servos Vibrating During Full Throttle Hey Helifreaks, I'm the original owner of a Trex 500 ESP upgraded to an i2 FBL head w/a BeastX FBL controller. Heli's never been in a crash. Recently, I changed the main gear to the slant main gear w/a helical pinion. For some reason, on high throttle my DS510 cyclic servos visibly oscillate which is very noticeable during a hover as you can see the whole heli wobbling at the skids. Main blades are tracking perfectly. Prior to changing the main gear, I had the same issue w/one of the servos which I subsequently changed to a new one. Problem went away. However, now I'm getting that same oscillation on all three cyclic servos. Anyone have a similar problem that may be able to shed some light as to how to resolve this? Thanks in advance, Byter182 __________________ Trex 500 w/BeastX & i2 Head, Trex 550e w/BeastX & DFC 600EFL Pro w/SK720 & TracX Head Logo 600se w/Blue MiniVBar, PowerJive120, Pyro 700-45L Red SAB WobblinGoblin770 w/the iKon

12-22-2012, 10:16 PM	#3
byter182 Registered Users Thread Starter Join Date: Jan 2009 Location: Florida	Using an Align DS650 tail servo. So where do I start looking? __________________ Trex 500 w/BeastX & i2 Head, Trex 550e w/BeastX & DFC 600EFL Pro w/SK720 & TracX Head Logo 600se w/Blue MiniVBar, PowerJive120, Pyro 700-45L Red SAB WobblinGoblin770 w/the iKon

12-23-2012, 08:51 AM	#4
bstanley72 Registered Users My HF Map location Join Date: Feb 2011 Location: Charlotte, NC	As said above it could be many different things. However, are you sure the wobble is related to the servos? It sounds like to me you have a vibe somewhere. I had a similar problem on my 500. The bird would oscillate and it was most noticeable in the skids. Turned out it was a shot motor bearing. __________________ Compass Atom 500, DJI 450 Flame Wheel, mCPX Brushless, Nano CPX, T-28 Trojan, "Crash Proof" Hawk Sky, DX8, overinflated sense of self worth!

12-23-2012, 08:00 PM	#5
blax1 Registered Users Join Date: May 2006 Location: Sydney	Probably vibration related the BeastX is giving involuntary inputs to servos Take mains and TR's off spool up, watch for involuntary swash deflections through the full collective range it should be nice and even up and down, dont move the cyclic stick when doing this. __________________ Kyosho Caliber 5 OS50 Hyper, GY401, S9254, 4x JRDS8231's,B6T Glow/Reg 1900Mah Avant Aurora OS91SX-H Ring C-Spec, RJX Pipe, Spektrum AR7100R, 2x SPM9545 Sat-Ant, SPM9540 Onboard Data logger, Outrage XPRX 7.4 2S2P 5000Mah Rx pack, 4xJRDS8717's, Spartan DS760, Futaba BLS251 TR Servo, Curtis Youngblood RadiX 710's, 105 TR's, 105 Super Stubz.

12-25-2012, 03:15 PM	#7
701superjet Registered Users My HF Map location Join Date: Jan 2009 Location: Springfield, MO	Ya I would say it's probably vibration and the best x. Also could be getting interface from the high voltage side. Like having esc/batt wires ran to close to other electronics. __________________ -trex700n -trex600n -trex500 -trex450 -trex250 ...blade mcx...best cat toy so far. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. ...& Aurora9

12-22-2012, 09:54 AM	#2
Ghostrydyr Registered Users Join Date: Dec 2011 Location: EAST COAST	could be a million things, what servo are you using for the tail, if its a reoccurring prob with your cyclics, could be the tail servo is causing it,

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode