I'm also looking for a means to provide linear actuation but at a much higher accuracy. The specs I need are:
- At least 10 micron/step
- Need to be able to oscillate at about 1Hz for a distance 300 micron for an extended period of time.
- force will be very very low so that shouldn't be an issue.
- stroke length of approx 60mm
- Budget 200 euros
Any help/ideas would be greatly appreciated.