Chalcogenide glass has the broadest reported transparency in the infrared, making them particularly attractive for spectroscopy and infrared imagery. Yet, it remains a difficult material to shape in arbitrary form. In this paper, we explore the combination of femtosecond laser-exposure and subsequent chemical etching steps to produce arbitrary 3D shapes out of a chalcogenide glass substrate coated with a SiO 2 thin film. In this context, we discuss how laser parameters locally influence the etching rate.