ENERGY BEAM POSITION VERIFICATION

摘要

A method for verifying a position of an energy beam spot, said method comprising the steps of: providing a calibrated energy beam having a first focus in a at least two positions at a work table, detecting said at least two positions of said energy beam spot on said work table created with said energy beam having said first focus, providing said calibrated energy beam having a second focus in said at least two positions at a work table, detecting said at least two positions of said energy beam spot on said work table created with said energy beam having said second focus, comparing said at least two positions created with said first and second focus, wherein said position of the energy beam is verified if said positions created with said first focus are deviating less than a predetermined distance from said positions created with said second focus.

主权项

1. A method for verifying a position of an energy beam spot, said method comprising the steps of:
providing an energy beam having a first focus in at least two positions on a work table, detecting said at least two positions of said energy beam spot on said work table created with said energy beam having said first focus, providing said energy beam having a second focus in said at least two positions on a work table, detecting said at least two positions of said energy beam spot on said work table created with said energy beam having said second focus, and comparing said at least two positions created with said first and second focuses, wherein said position of the energy beam is verified if said at least two positions created with said first focus are deviating less than a predetermined distance from said at least two positions created with said second focus.