Vibrationally driven engraving tool with point has cups arranged on pre-set grid pattern and with modifiable shape and position.

摘要

The vibrationally driven engraving tool enables the vibrational frequency and or amplitude to be modulated. The cups on a printing forme cylinder are arranged in a basically pre-set grid pattern and enable the shape and or position of the cups to be modified at least in a selected area. The center of gravity of at least one cup is displaced in relation to the pre-set grid pattern.