12-25-2014, 04:14 PM | #1 |
Quarry Creeper Join Date: May 2008 Location: malvern
Posts: 233
| 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.
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12-26-2014, 05:42 AM | #2 |
Quarry Creeper Join Date: Dec 2009 Location: Strafford, NH
Posts: 471
| 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. |
12-26-2014, 02:13 PM | #3 |
Rock Crawler Join Date: Jan 2012 Location: Hudsonville, MI
Posts: 875
| Re: Wraith servo question |
12-26-2014, 06:59 PM | #4 |
RCC Addict Join Date: Oct 2006 Location: crawlifornia
Posts: 1,612
| 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 |
12-26-2014, 07:11 PM | #5 |
Pebble Pounder Join Date: Oct 2014 Location: bellville
Posts: 144
| 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 |
12-26-2014, 07:40 PM | #6 |
Quarry Creeper Join Date: Mar 2014 Location: Athens, Al
Posts: 286
| 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.
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12-30-2014, 08:16 AM | #7 |
Newbie Join Date: Jan 2012 Location: Springfield, LA
Posts: 34
| 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.
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12-30-2014, 05:48 PM | #8 |
Newbie Join Date: Dec 2013 Location: CFL
Posts: 38
| Wraith servo question
I run 2 400 oz. servos on one BEC. Runs great!!! Sorry... 10amp BEC. Last edited by ROGI77; 12-30-2014 at 06:27 PM. |
01-21-2015, 04:33 PM | #9 |
Pebble Pounder Join Date: Nov 2013 Location: tracy city
Posts: 129
| 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
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01-21-2015, 04:37 PM | #10 |
I joined the Band! Join Date: Dec 2014 Location: Earth
Posts: 1,188
| Re: Wraith servo question |
01-21-2015, 04:38 PM | #11 |
Pebble Pounder Join Date: Nov 2013 Location: tracy city
Posts: 129
| Re: Wraith servo question |
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