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Jan 06, 2011, 09:14 AM
Electronics and RC
MegaTesla's Avatar
New Product

3.7g Metal gear micro servo from HK (Available now for ~$22)


HobbyKing showed this photo last year on their Plixi future product page. It seems to be one of the smallest metal gear servos to date. Does anyone know who makes it or if it is available somewhere?




edit: I've corrected the weight in the title.
Last edited by MegaTesla; Jan 30, 2011 at 11:23 PM.
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Jan 06, 2011, 02:03 PM
Registered User
Wow 2.5mg servo great for some micro slope gliders
Jan 08, 2011, 06:38 PM
Electronics and RC
MegaTesla's Avatar
I found the specs and more photos on their Facebook page.

Operating Speed(4.8V): 0.12 sec/60
Stall Torque (4.8V): 0.9 kg/cm
Gear Type: Metal + Aluminum-magnesium alloy Gears
Dimensions: 16 x 8 x 16 mm
Weight: 3.7 g








Jan 08, 2011, 06:45 PM
Vi ne donu ĝin
coriolan's Avatar
Its very small! would be even better with jst connectors to use with AR6300 or the Flydream 1 gram Rx.
http://www.rc-modules.com/page8.php?...=53&category=5
Jan 08, 2011, 07:29 PM
TheyreComingToTakeMeAway!
derk's Avatar
Way cool I hope they aren't too spendy either. I also hope they sell replacement gears I'd think you could make some really small gear drive with them.
Jan 08, 2011, 08:22 PM
Registered User
AleG's Avatar
Oh finally! A servo with an integrated connector. I modify my servos that way sometimes, it makes so much more sense to have fixed servo wiring in the airframe and simply plug in replacement servos without having to re-route wires around.
Jan 09, 2011, 05:08 AM
Registered User
I wonder how much plastic gears and a smaller motor would lighten it...
Jan 09, 2011, 07:10 AM
Electronics and RC
MegaTesla's Avatar
Quote:
Originally Posted by edblad
I wonder how much plastic gears and a smaller motor would lighten it...
Already exists. 2.2g weight. Get it here: http://www.hobbyking.com/hobbyking/s...dProduct=12907

2.2g servo stall torque: 0.2 kg.cm
3.7g metal gear servo torque: 0.9 kg.cm

The 2.2gram servos doesn't like 5V, they overshoot a lot at voltages higher than 1S. Hopefully the metal gear servo will be okay on 5V.
Jan 09, 2011, 07:35 AM
Registered User
Thanks a bunch! I've missed out on that one.

Alex


Quote:
Originally Posted by MegaTesla
Already exists. 2.2g weight. Get it here: http://www.hobbyking.com/hobbyking/s...dProduct=12907

2.2g servo stall torque: 0.2 kg.cm
3.7g metal gear servo torque: 0.9 kg.cm

The 2.2gram servos doesn't like 5V, they overshoot a lot at voltages higher than 1S. Hopefully the metal gear servo will be okay on 5V.
Jan 30, 2011, 11:22 PM
Electronics and RC
MegaTesla's Avatar
HobbyKing just listed the servo. Rather expensive though...

http://www.hobbyking.com/hobbyking/s...dProduct=14909
Jan 31, 2011, 12:59 AM
Electronics and RC
MegaTesla's Avatar
It seems to have been developed back in 2009. Interesting article here: http://www.roboteshop.com/blog/?p=62

$22 is actually not bad compared to the retail price of $35 at other shops.

Specification:
Operating Speed: 0.12 sec/60 (4.8V)
Voltage Range: 3~4.8v
Stall Torque: 0.9 kg/cm (4.8V)
Gear Type: Metal + Aluminum-magnesium alloy Gears
Weight: 3.7 g
Connection: Standard JR Servo Plug. (Huge connector FAIL in my opinion. Anything smaller or no connector at all would have been better.)






Warning, never turn the servo arm by hand:



Last edited by MegaTesla; Jan 31, 2011 at 01:45 AM.


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