In this contribution, we demonstrate the capabilities of additive manufacturing (AM) to transfer complex optical assemblies into function-integrated systems. The Fused Filament Fabrication (FFF) technique is combined with the print-pause-print (PpP) scheme and the possibilities of multi-material printing. Thereby conventional optics are fully embedded into a lightweight and compact 3D printed optomechanic for a solid-state laser system. An optical characterization of the laser system proves the functionality in comparison to setups with discrete conventional optomechanics. We show that AM is a technology that can increase the level of integration of optical technologies and offers the potential to rethink optics assembly and optomechanical systems design.