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Mini linear actuators
I need help selecting a linear actuator.
I have a cnc where I have to move z axis very fast for a 2mm travel (something like sewing machine, but I need to control 20 needles independently)
Right now I made z operated by the stepper motor (translated to linear motion) and I get 3-6ms for 2mm travel start to stop. The problem is with it's size I need something I could fit in 25mm x 25mm size square footprint(height is unlimited). Also it should last at least for 1-2M cycles.
I was thinking about:
* linear solenoid
* voice coil motor
* mini pneumatic cylinder (i think this doesn't fit because valve itself needs 2-5ms to operate)
* mini motor (with motion transfer from rotation to linear)
Never had anything to do with such a small parts and actuators so I need your insight.
Specs in short 2 mm in 6 ms for 2 million cycles at 6N force.Posted in: #Robotics