Digital Filter System - DFS

This is the enclosure (and all construction information) for a electronic signal filtering device. It is referred to as the DFS - Digital Filter System. It is a small bench-top, USB powered, device with one BNC input for the signal you want filtered and one BNC output for the resulting filtered signal. It has a touchscreen LCD to select a filter type and the cutoff/center frequency. So, what can it do? You can select a low-pass, high-pass, band-pass, or band stop filter type. The filter can also be either a 2 pole Butterworth or a 4 pole. For the frequency, you can select anywhere from a few Hz to 120 kHz. The are also three gain controls (an analog input gain knob, an analog output gain, and an internal digital gain.) In the download is a document with a lot more information. The schematic, more pictures, and Arduino code is also in the download. See more information in the EDN article at: https://www.edn.com/a-digital-filter-system-dfs-part-1/ The 3MF includes the encloser, it's