AndyMark Linear Servo with longer stroke?

Technical Motors
1

Hi! We are a rookie team. We are not using pneumatics, but would like to create some linear motion. We’ve seen servos on AndyMark as follows

https://www.andymark.com/products/actuator-l16-r-140mm-stroke-35-1-6v?via=Z2lkOi8vYW5keW1hcmsvV29ya2FyZWE6OkNhdGFsb2c6OkNhdGVnb3J5LzVhZjhkZGRjYmM2ZjZkNWUzNmYyMzY5ZA

Are these legal? They are under the price restriction, but the stroke is larger than 1" (which seems to be the limit for a linear actuator). It will be a critical mechanism, so we need to know if we can use it or go with our current configuration (not using servos).

Thanks!

2

They are FRC legal. A good rule of thumb is every thing on Andymark is FRC with the exception of some of the alternate control systems.

3

The 1" limit is for mechanical solenoids [electrical solenoid actuators]; servos are a different thing. The limiting factor on servos is the price (< $75). See the next-to-last row of the table in R34. (You were probably looking three rows up.)

4

IIRC, that’s the limit on electrical solenoids, which are a type of linear actuator, but have a specific means of actuation (induction coil magnet)

1 Like
5

If you’re still designing and don’t have the parts ordered/selected yet, you may also want to look at these linear servos:
https://www.servocity.com/servos/linear-servos
Note that only the first four listed are legal; the others are priced well over $75.

– and be sure to consider the speed when designing as well as force and stroke!

6

Thanks! I appreciate such a quick response.