Servo for a lifter?

[daveimi]

If one were to attempt to build something similar to this

http://www.buildersdb.com/botpics/4295.jpg

Which servo / gearmotor should one be looking at? lol

[leorcc]

In a beetle you might get away with a 1/5th bigscale steering servo like the Rhino Pro HV ( 270 Ncm (27.5 kg) @ 7.4 Volt, speed: 0.08 sec @ 40 degrees) which you can power directly on 2S lipo. That is already 175 gram of your beetle gone though.

I'd rather use a compact gearbox motor

[Niels - Team K.a.L.M.]

175gr isn't that bad

[daveimi]

Ok cool, will look at gear motors.

[plargen]

a servo will work fine if the arm isnt to long ..... if you have a 10kg cm torque servo on a 5cm arm tip to servo pivot the it will be able to lift 2kg at the tip which will lift a beetle, you can get servos that will doe 15kg quite cheap

i think i have a 10-13kg servo in mine