An additive manufacturing device comprising a device for an adjustment of a heater control, wherein, in the additive manufacturing device, a number of objects can be manufactured by a layer-wise application of building material layers, in particular powder layers, on top of each other, in that in a plurality of building material layers the positions corresponding to the cross-sections of the objects in the respective building material layer are solidified by means of radiation, wherein the heater control regulates the heating of an applied building material layer by means of a heating device up to a work temperature (T A) and is able to regulate the value of at least one predetermined controlled variable based on at least one control parameter by changing the value of at least one predetermined manipulated variable, wherein the device comprises: a nominal parameter provision unit designed such that it provides at least one nominal parameter value, meaning the setpoint of a controlled variable and/or its change with time and/or the setpoint of a heater parameter and/or its change with time, an actual parameter detection unit designed such that it is able to detect for at least one of the nominal parameter values the corresponding actual parameter value in the heater control or in the additive manufacturing device, wherein an actual parameter value is the actual value of a controlled variable and/or the actual value of its change with time and/or the actual value of a heater parameter and/or the actual value of its change with time, and a control change unit that automatically changes at least one control parameter value, if a predefined difference between the nominal parameter value and its corresponding actual parameter value is exceeded, wherein the at least one control parameter that is changed is at least one of the following quantities: the admissible maximum heating power (P max), the size of the manipulation range of at least one of the manipulated variables, the controlled range around the work temperature (T A), within which the heater control actually performs a control, the maximum and/or minimum change of the heating power with time, at least one linear factor of a transfer function describing the control behavior, the P gain, the reset time or the derivative time of a proportional, integral or derivative term of the heater control. a nominal parameter provision unit designed such that it provides at least one nominal parameter value, meaning the setpoint of a controlled variable and/or its change with time and/or the setpoint of a heater parameter and/or its change with time, an actual parameter detection unit designed such that it is able to detect for at least one of the nominal parameter values the corresponding actual parameter value in the heater control or in the additive manufacturing device, wherein an actual parameter value is the actual value of a controlled variable and/or the actual value of its change with time and/or the actual value of a heater parameter and/or the actual value of its change with time, and a control change unit that automatically changes at least one control parameter value, if a predefined difference between the nominal parameter value and its corresponding actual parameter value is exceeded, wherein the at least one control parameter that is changed is at least one of the following quantities: the admissible maximum heating power (P max), the size of the manipulation range of at least one of the manipulated variables, the controlled range around the work temperature (T A), within which the heater control actually performs a control, the maximum and/or minimum change of the heating power with time, at least one linear factor of a transfer function describing the control behavior, the P gain, the reset time or the derivative time of a proportional, integral or derivative term of the heater control. the admissible maximum heating power (P max), the size of the manipulation range of at least one of the manipulated variables, the controlled range around the work temperature (T A), within which the heater control actually performs a control, the maximum and/or minimum change of the heating power with time, at least one linear factor of a transfer function describing the control behavior, the P gain, the reset time or the derivative time of a proportional, integral or derivative term of the heater control.