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tinycrites 12-25-2014 04:14 PM

Wraith servo question
 
I have a castle 10 amp bec with a servo with 333oz and just installed rear steer with the same size servo. Do I need to step up to the castle 20amp bec. What do you guys run with front and rear steer.

rob5059 12-26-2014 05:42 AM

Re: Wraith servo question
 
You need to look at your servo specs.

A 7955 is 300mA at idle, and 4.2A at lock. If it was me, I would put a BEC on each servo.

2-shot 12-26-2014 02:13 PM

Re: Wraith servo question
 
Quote:

Originally Posted by rob5059 (Post 5095203)
You need to look at your servo specs.

A 7955 is 300mA at idle, and 4.2A at lock. If it was me, I would put a BEC on each servo.


+1

I think the cheapest route would be, is to buy a second 10 amp BEC for the rear steer.


Sent from my modded TI-83 plus.

rockhugger 12-26-2014 06:59 PM

Re: Wraith servo question
 
I'm going to go against the above advice, and do the opposite. I'd run them both off one BEC, and this is why:

A. The likelihood of those servos pulling their max amperage draw simultaneously
is very low. Even at full bind they're not pulling 5 amps apiece.
B. "4.2 amps at lock" as previously posted is only 8.4 amps, what's the problem,
the BEC is rated @ 10amps.
C. This https://www.youtube.com/watch?v=32SNVXklxxs



"thumbsup"

Reddog95 12-26-2014 07:11 PM

Re: Wraith servo question
 
You only need the one BEC. I am running 4ws on the same BEC you have. My front servo is HS-7980TH and SG 1231SG in the rear. I have never had any problems even when I had the dig kit in it.


Hitec
HS-7980TH High Voltage, Mega Torque, Titanium Gear, Coreless Ultra Premium Servo | HITEC RCD USA

Savox
Savox SA1231SG Digital Servo

JDIRCC 12-26-2014 07:40 PM

Re: Wraith servo question
 
+1 for running one bec. I run 2 savor 1230sg servo at 4990x at 7.4v ( i believe) and the one bec does the trick.

derek12v 12-30-2014 08:16 AM

Re: Wraith servo question
 
I'm planning on only running 1 bec when I finish the 4ws setup. Less mess and wiring to deal with is another bonus.

ROGI77 12-30-2014 05:48 PM

Wraith servo question
 
I run 2 400 oz. servos on one BEC. Runs great!!!

Sorry... 10amp BEC.

mikelshrum 01-21-2015 04:33 PM

Re: Wraith servo question
 
If I'm running 2 servos and they both need 6.0v would I set my bec at 12 or what

Eric0424 01-21-2015 04:37 PM

Re: Wraith servo question
 
Quote:

Originally Posted by mikelshrum (Post 5121226)
If I'm running 2 servos and they both need 6.0v would I set my bec at 12 or what

Set it as 6v, the voltage required will not increase with a second servo but the current demand (amps) will.

mikelshrum 01-21-2015 04:38 PM

Re: Wraith servo question
 
Quote:

Originally Posted by Eric0424 (Post 5121233)
Set it as 6v, the voltage required will not increase with a second servo but the current demand (amps) will.

Ok thanx man


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