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3D-printed laboratory devices can enable ambitious research purposes even at a low-budget level. To follow this trend, here we describe the construction, calibration and usage of the FINDUS (Fully-Integrable Non-commercial Dispensing Utility System). We report the successful 3D-print and assembly of a liquid handling workstation for under $400. Using this setup, we achieve reliable and flexible liquid dispensing automation with relative pipetting errors of less than 0.3%. We show our system is well suited for several showcase applications from both the biology and chemistry fields. In support of the open-source spirit, we make all 3D-models, assembly instructions and source code available for free download, rebuild and modification.
