[Kevin Sevcik]

Originally Posted by Sparky3D

Um, those don't look like any servo I've ever seen. They look like a small, dc motor powered linear actuator (the description even states they run off of a PMDC motor). Unless the motor in them is in the approved motor list, or you replace it with an approved motor; you will likely have a long conversation with your inspector about them. But as Mark said, opinions on CD are unofficial.

You do realize that the "servo" you're more familiar with is a small DC motor powered rotational actuator with an integral controller that uses a PWM signal. The only difference I can see here is that these are linear actuators and they're not exclusively called "servos". Firgelli's L12 series apparently is called a micro linear servo. Would that make you happy?

Anyways, Q&A this immediately and we'll see how nit-picky the GDC is or isn't this week.

EDIT:
http://store.firgelli.com/RC_linear_servos_s/1853.htm

The L12-R, L16-R and PQ12-R series of linear servos for RC operate as a direct replacements for standard analog rotary servos. They use the same standard 3 wire connector, ground, power and signal. Firgelli Technologies has 18 models of affordable receiver ready RC linear servos to help you move your RC project!

These linear servos are approved by First Tech Challenge and are compatible with their allowed servo controllers
Part of a FIRST Team? Contact us about available discounts!

Looks like they're "servo" enough for FTC. Wonder if they're "servo" enough for FRC?