Dubuque, IA Free Moderated Classifieds Site > OLD ADS FROM PREVIOUS YEARS
> 2002
> August
> Linear motion actuator 2.5" rigid park 4 wire stepper
Linear motion actuator 2.5" rigid park 4 wire stepper
Features cast aluminum frame, precision guides, and a very rigid hold from the polymer drive nut.
The motor is standard 4 wire stepper motor with 3.3 ohm winding.
Overall size of the assembly is 9"x4.5"x2.5".
What you see is exactly what you get.
Postage is priced by weight and the first pound is far more expensive than 2nd and 3rd pound.
NOTE: Thread pitch on the screw is approximately 25 turns per inch or one turn per millimeter.
NOTE: I've questions about the circuit board inside. The circuit board appears to have stepper bridge driver circuitry to drive the motor simply by connecting the stepper motor cable to one of the circuit board connectors seen in the picture at the board edge. The circuit board also has an optical shaft encoder wheel and optical pickup unit soldered in near the cog belt style pulley.
This unit would make a SUPERB Z axis actuator for gantry style router mill or other sort of robot that needs a short throw, high stiffness, and very high resolution linear motion drive.
