Specifications

Manufacturer Teeth Part No.
14T 3014
15T 3015
16T 3016
17T 3017
18T 3018
Table 30.14. Pinions 5mm bore 1.0 module
Manufacturer Teeth Part No.
Century Swift pinions 9T CNMG509
10T 3010
11T 3011
12T 3012
13T 3013
14T 3014
Mikado Logo 16/20 pinions (old) 8T 2508
9T 2509
10T 2510
11T 2511
12T 2512
30.6. Servo selection guide
There are 10 main criteria to consider when selecting a servo:
30.6.1. Electrical characteristics
30.6.1.1. Servo deadband
The servo deadband is measured in microseconds, and is an indicator of the "electrical slop"
of the servo's electronics. This term is rather technical, but the simplified explanation is that it
measures the resolution of the servo.
For example, the standard R/C servo control pulse width varies from 1 millisecond to 2 milli-
seconds wide, so there is about 1 millisecond of electrical resolution.
The Hitec HS-81 analog servo has a deadband of 8 microseconds. So, the resolution of this
servo is about 180 degrees * 8 microseconds / 1000 microseconds or about 0.72 degrees.
The Hitec HS-5245 digital servo has a factory default deadband of about 2.9 microseconds.
So, the resolution of this servo is about 90 degrees * 2.9 microseconds / 1000 microseconds or
about 0.261 degrees.
30.6.1.2. Current draw
Digital servos will have a much higher current draw than analog servos, especially when used
Technical Appendix
204