The standard engrave head is tuned for optimum performance at a single screen. As a result, the farther away from this screen that you engrave, the less efficient the head becomes.

OEE recognized this and even provided three separate tunes for it's high speed heads. This allowed them to have a larger range of engraving quality than they would have had otherwise.

Retro Technologies has developed a 5 tune Pcard that can be adapted to most any engrave head. This modification allows the operator to speed up or slow down the response of an engraving head depending on the job being engraved.

This modification is great on the "non-feedback style" high output engrave heads. It allows these heads to remain on a given machine longer by allowing them to engrave a broader range of screens and angles.