High-resolution 3D printing is often synonym to long printing times as well as costly equipment. We hereby demonstrate that the combination as an additive manufacturing process, direct writing, with colloidal assembly of low-viscosity additive-free water-based suspensions enables fast printing times while reaching high-resolution in terms of 3D structural features. We demonstrate that by using a “comb-strategy” for 3D printing of micron-sized particles’ suspensions, uncontrolled contact line slipping is avoided and upon optimization of the printing parameters, the printing of crack-free cm-sized homogeneous colloidal coatings is possible. Those are then transformed into functional ceramic structures with remarkable broadband reflection in the near infrared by using atomic layer deposition. Our work highlights the advantages of combining additive manufacturing with colloidal assembly (AMCA) and atomic layer deposition (ALD) for novel applications of colloidal-based printed structures.