A computer implemented method for designing a complex part (112) of an in-vitro
diagnostic instrument (114) is disclosed. The method comprises step i.retrieving at least one target constraint (118); step ii.retrieving at least one set of input parameters (122), wherein the input parameters (122) comprise at least one design target (124) for defining the complex part (112) of the in-vitro
diagnostic instrument (114) and at least one constraint parameter of the complex part (112) of the in-vitro
diagnostic instrument (114), step iii.determining at least one design solution (128) of the complex part (112) by using at least one iterative
algorithm considering the input parameters (122), wherein in each iteration the iterative
algorithm comprises determining at least one candidate complex part (132) of the in-vitro diagnostic instrument (114), comparing the candidate complex part (132) to the target constraint (118), and rating the candidate complex part (132) depending on the comparison, wherein the method comprises repeating step iii until a predefined number of iterations is reached and / or until the determined candidate complex part (132) fulfills the target constraint (118) at least within predefined tolerances, thereby determining the design solution (128) of the complex part (112) of the in-vitro diagnostic instrument (114). Further disclosed are a method for manufacturing a complex part (112) of an in-vitro diagnostic instrument (114), a complex part (112) of an in-vitro diagnostic instrument (114), a
computer program with program means for executing the method for designing a complex part (112) of an in-vitro diagnostic instrument (114), a non-transient computer-readable medium, a computer-readable storage medium, a printing
data set, and a
computer program for producing the printing
data set.