Apparatuses, dies and methods for manufacturing are provided a body configured as a housing for a three-dimensional printer. An apparatus is provided including a body configured as a housing for a three-dimensional printer; three or more rails integrally formed on the body; wherein the three or more rails are oriented and positioned such that the three or more rails are configurable for co-operation with three or more drive systems, the three or more drive systems being attachable to three or more arms connected to an end effector; and wherein the movement of the three or more arms are balanced such that the aggregate motion contributed by each of the three or more arms provide sufficiently accurate movement of the end effector as the end effector undergoes translational movement in three-dimensional space.

It is presented a method for producing a cured polymer structure from a polymer compound which is UV curable and partly UV transparent. The method comprises injecting the polymer compound into a mold (2), which mold (2) has at least one wall (7) defining a mold space (6) for receiving the polymer compound in the mold space (6). The at least one wall (7) of the mold (2) is UV transparent and comprises a thermoplastic polymer. The polymer compound is then irradiated through the at least one wall (7), by means of at least one UV semiconductor light source, thereby curing the polymer compound to form the cured polymer structure. An assembly for producing a polymer structure and a mold (2) is also presented herein.