View Full Version : Buzzing servos
SurfCity
03-19-2008, 02:28 AM
Now my servos are buzzing. I have three HS45s. Power up the receiver and plug them one at a time into AILE, ELEV and AUX1, and two of the three will buzz; they move correctly, but moving doesn't make the buzz go away. Connect any two and the buzz gets louder; all three and it's really loud, which suggests it's feedback or something. Only one doesn't buzz at all. I'm clueless. Any ideas?
Buzzkill
03-19-2008, 09:11 AM
Buzzing usualy means there being strained. So if you push on the servo arm of the non-buzzing servo it would then buzz.
What radio are you using? What's your swash set at? What's your swash mix set at?
SurfCity
03-19-2008, 10:41 AM
Buzzing usualy means there being strained. So if you push on the servo arm of the non-buzzing servo it would then buzz.
What radio are you using? What's your swash set at? What's your swash mix set at?
The links are not yet connected, so there's currently no load. Tx is a DX7; all settings are currently 0.
Buzzkill
03-19-2008, 10:13 PM
I have to ask so sorry in advance. Do you have them plugged in the right direction on th rx?
SurfCity
03-20-2008, 02:04 AM
I have to ask so sorry in advance. Do you have them plugged in the right direction on th rx?
I'll double-check tomorrow. I can say that they all work correctly. And there's a spot on the collective -- just a tiny one barely above zero -- where they stop buzzing.
psindrup
03-20-2008, 03:51 AM
I'll double-check tomorrow. I can say that they all work correctly. And there's a spot on the collective -- just a tiny one barely above zero -- where they stop buzzing.
Could the servo casing be binding mechanically to the frame? Tightened to tight perhaps?
Peter
mjr_larkin
03-20-2008, 04:18 AM
Mine started to buzz when the case was actually getting loose and coming off. The servo I was using though was known to come apart like that, heh.
surgicalCFe
03-20-2008, 12:43 PM
A word regarding the BMS-306BB servos that everyone complains about coming apart. Those servos come with a clear plastic ring (for lack of a better term) that holds the halves of the servo together. I know for a fact that people that have had problems with them coming apart have removed these rings (no way this could happen otherwise). These servos are actually really good (in my experience and opinion) and are what I use for all but the tail position. Here's the specs.
Torque: 4.8V / 0.8Kg-cm , 12oz-in
Weight: 6g / 0.21oz
Speed; 4.8v / 0.11 sec / 60
Size: 22 x 10 x 23 mm
Size: 0.86 x 0.4 x 0.9
Not bad for a $16 servo. Not sure if thats the servo you were referring to mjr_larkin but thought I should say something in case.