An emerging fabrication process for microfluidic systems is additive manufacturing (AM) or 3D printing. In the field of microfluidics the use of 3D printing and lab-on-a-chip fabrication has increased. Examples of RPS components integrated into AM are limited. This is likely due to the print resolution, although the use of two-photon-polymerisation (2PP) has now enabled some novel nanopore designs. We have previously used surface channels within AM devices, sealed with a polymer acetate film to overcome the resolution of AM. In a subsequent design, we extended the sensing dynamic range down to 5 m using a re-sealable lid and tuneable PDMS gasket layer. However, this was insufficient to study nanomaterials.