PIRest Active Piezo Shims
found the perfect solution for this and developed the PI Rest piezo-based "shims". Once they have been installed into the machine, the active shims not only make it possible to readjust the gap between two [...] PIRest Active Piezo Shims If a target or an actual dimension between two components inside precision machines changes, readjustment may be necessary. The disadvantage of classical shims that are ground exactly