We utilize 3D design and 3D-printing techniques to fabricate a number of miniaturized fluidic “reactionware” devices for chemical syntheses in just a few hours. Starting from inexpensive materials we are able to produce reliable and robust reactors. Here we show a two-inlet reactor setup with pumps and in-line or on-line analytical techniques, such as IR spectroscopy, which is used to follow an imine condensation reaction, and mass spectrometry, which is used to characterize the complexation behavior of a cyclohexane-based ligand with copper (II) chloride.