There is provided a method of generating instructions for manufacturing a microstructure by a manufacturing device, comprising: providing a representation of a freeform tile, providing a representation of a deformation map that maps a parameter space to a space of an object, arranging a plurality of instances of the freeform tile within at least a portion of a domain of the deformation map to create a tile arrangement, creating a representation a microstructure of the object by composing the tile arrangement into the deformation map, and providing code instructions for execution by a manufacturing device controller of a manufacturing device for manufacturing the microstructure.