And what if I told you that you can even design your chemical reactionware? This has been demonstrated multiple times by Cronin's group. The possibility of adding chemicals and external components such as filters or silica gel during the printing process allows the user to have whole synthetic and purification setups in a few hours. The versatility of 3D printing and the possibility of inserting external components in a 3D printed object allows for precise and reproducible synthetic and purification steps. Cronin's group proved this by printing cubes with different functionalities, and the single synthetic and purification steps are performed by simply turning the 3D printed object to move the solutions from one block to another (Figure ). The group has also shown that with Polypropylene (PP) as 3D printed material, it is possible to make vessels stable to high temperatures and pressure. 3D printing is also employed in analytical chemistry, another field that extensively uses 3D printing versatility for designing and printing separation devices, flow cells, mixers, concentrators, and more. A word of warning about materials if you plan to use them in contact with solutions of your interest. Commercially available 3D printing materials are rarely pure polymers. PLA, PETG, PP, etc., are not pure; they typically contain some copolymers, additives, and in the case of colored materials, pigments of some sort. Common 3D printing materials are formulated to be easily printable and for their mechanical properties, not for their purity. Even the same material from the same vendor can be chemically different from batch to batch. Do not assume that the materials are pure polymers, and if you plan to use them in contact with a solution of your interest, for example, for synthesis or analytical purposes, always test the material in advance. This can be done by NMR, or more quickly by placing the 3D printing material in the solvent you plan to use, letting it there for a few days, and Also for this phase, you will hear a classic criticism: "3D design is too difficult". I am sure that you have encountered and survived calculus, thermodynamics, and quantum mechanics in your studies. Compared to these topics, 3D design is a walk in the park. Nowadays, there is plenty of easy-to-use 3D design software, the easiest one being Tinkercad, a free-of-charge web-based software design. After a 10 minutes YouTube tutorial on how to use it, I can assure you that you will be able to make your first 3D designs in minutes. For more complex designs, the most used software are Solidworks, Fusion 360, and Blender. The first two are commercial, while the third one is free and open-source software. They are more complex to use and require more training, but nothing impossible to learn. Another option, if you like programming, is OpenSCAD, which uses a programming-like structure and syntax to design 3D models. Shapr3D is a recent developed software, initially designed for iPad+Stylus but now available for Mac and PC, free for academia and very intuitive to use. And once more, 3D design is a helpful skill not only for 3D printing but also for making appealing scientific schemes and figures.