Filament Dryboxes with sensors and LCD display

thingiverse

I built this project to shield filaments from humidity while loaded into a Prusa MMU2. Here are more project details: https://www.reddit.com/r/prusa3d/comments/auwq2w/my_somewhat_overengineered_mmu2_setup_with/. The STL models available are: * Filament rollers: print two of "full-v3.stl" to get a roller in one color. Alternatively, you can print two each of side-v3.stl, bearingCap-v3.stl and washer.stl in separate colors. Labels can be added by printing labels-v3-mmu-black.stl and labels-v3-mmu-orange.stl together as an MMU print. * Feeder to pass a PTFE tube through the top of the drybox: print one each of feeder_top.stl and feeder_bottom.stl. * Dehumidifier stand: this is to hold the mini-dehumidifier inside the drybox, one for each drybox. * Top guide: This is the thing on top that holds the PTFE that is connected to the MMU2. To build this project, you will need: * One Snapware Airtight 40-cup Rectangular Food Storage Container per drybox * One DHT22 sensor per drybox * One dehumidifier per drybox * Raspberry Pi 3B+ * 20x4 I2C LCD module * WS2812b LED strip * Arduino Nano The software for this project is available at: * Code to read sensors, log data, and serve chart data: https://github.com/ppamidimarri/drybox * OctoPrint plugin: https://github.com/ppamidimarri/OctoPrint-Drybox