Gantry-type positioning device

A gantry-type positioning device, comprising:

• a first cross member and a second cross member;
• two linear guides that are disposed parallel to each other on a base and support the first and second cross members such that the first and second cross members are movable in a first direction;
• a Y-carriage having a functional element and being supported on the first cross member such that the Y-carriage and the functional element are movable in a second direction;
• a position-measuring device disposed on the second cross member and the Y-carriage such that a position of the Y-carriage relative to the second cross member is detectable by the position-measuring device;
• a Z-carriage which supports the functional element such that the functional element is movable relative to the Y-carriage in a third direction;
• and
• a further position-measuring device disposed on the Y-carriage and the functional element such that a position of the functional element relative to the Y-carriage is detectable by the further position-measuring device.