In one example, a control process for an additive manufacturing machine includes displacing a platform, measuring the actual displacement of the platform, determining that the actual displacement varies from a nominal displacement, and determining an amount of an agent to be applied to build material layered on the displaced platform based on the determined variation.

In one example, a control process for an additive manufacturing machine includes displacing a platform, measuring the actual displacement of the platform, determining that the actual displacement varies from a nominal displacement, and determining an amount of an agent to be applied to build material layered on the displaced platform based on the determined variation.

According to a method according to the invention for controlling at least one manipulator, in particular a robot, a plurality of control commands (P, B, F) are worked through, in that in a state machine (ZM) the respective command runs through an active state (-A), wherein in a state machine at least one control command runs through a preliminary state (-E) that is placed ahead of its active state and/or a post-operational state (-P) that is placed after its active state, and/or a plurality of control commands are processed at the same time.

A service control device includes a controller that receives one of an external request and an execution result of a functional element and directs a functional element to be carried out next by referring to a control list holding a plan of combination of functional elements; an execution unit configured to carry out the functional element directed by the controller; a monitoring and recording unit configured to monitor an execution state of a functional element and record; and an activation level calculating unit configured to calculate an activation level of a functional element based on the execution state of a functional element having been recorded and update the control list based on the activation level.