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Rc4wd Twister waterproof servo any good?

BombShellRC

Rock Stacker
Joined
Jan 30, 2017
Messages
74
Location
PDX
Looking for a good servo. This is what my RC hobby store has on a shelf. He recommends it. I just want to make sure I'm not about to just buy something he may try to push on me. I told him I need waterproof. So that's what he showed me. Your thoughts?

Here is the specs online

Digital Waterproof Version
All Aluminum Housing
Metal Gear Construction
Bearing: 2BB
25 Tooth Spline
Speed (.16sec/60deg @4.8V ; .14sec/60deg @6V
Torque: @4.8V 20kg.cm/249.4 oz.in; @6V 22kg.cm/277 oz.in
Voltage: 4.8V-7.4V
Center Case: Aluminum
Servo-motor lock-rotor protection
High efficiency, low power consumption



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RC4WD electronics suck. This servo looks like a pretty cheap Chinese servo. I would avoid it at all costs and get a waterproof from Hitec or Savox or even BlueBird.
 
Bummer. Any one else think the same as JatoTheRipper? Or has some one had good luck with this one? Any one else got some .02 to add please???


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that servo is very slow and under powered. 277oz of torque is barely going to move the wheels if/when wedged

this is what I'm using, was about $100 and can be run at 8.4v

5fa91cddc66eb2bf3def8d73ce637a98.jpg


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You can pick up the PowerHD 20kg servo's for really cheap and they're not too bad.

They do a waterproof version for a few bucks more and it's blue coloured. I bought the red regular one and when i stripped it down to waterproof it, i discovered it had rubber gaskets everywhere already.
It seems the only difference between the red regular and blue waterproof ones is the extra price tag and some blue stickers.

Regular (waterproof IMO)
Power HD LF-20MG Standard Digital High Torque Servo - 1/10 - 1/8 Steering Servo | eBay

"waterproof"
POWER HD LW-20MG Waterproof Digital Servo 20kg for Cars Airplanes Robot Futaba | eBay

Specifications:
Model: LF-20MG
Torque(4.8V): 16.5 kg-cm (229.1 oz/in)
Torque(6.6V): 20.0 kg-cm (277.7 oz/in)
Speed: 0.18 sec (4.8V) │ 0.16 sec (6.6V)
Operating Voltage:4.8-6.6 DC Volts
Bearing Type:Ball Bearing x 2
Motor Type:DC Motor
Gear Type:Copper & Aluminum
Operating Temperature:-20°c-60°c
Working frequence:1520μs / 333hz
Color: Red & Black
Material: Aluminum,Plastic, Copper
Size: 40.7 x 20.5 x 39.5 mm
 
that servo is very slow and under powered. 277oz of torque is barely going to move the wheels if/when wedged

this is what I'm using, was about $100 and can be run at 8.4v]




that servo shows 277 at 6v and is rated for 7.4v max. It will make more than the 277 at 7.4v..... my power hd servos are similar specs and have absolutely no trouble turning the wheels when bound.....for a 1.9 based rig you dont need a huge pricey servo to do the job. The speed is fine as well, i dont want my servo flopping my wheels around so fast that it hammers my knuckles against the chubs and beats my u-joints all to hell....
 
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