Update: Uploaded V2, had some issues it the acrylic cracking on hydrometer insertion, created small relief for tabs on hydrometer.
This is the faceplate for RobertCowanDIY's Modular Filament Drawer System with room for the rectangle hydrometers you can get on Amazon.
Example: https://www.amazon.com/dp/B07MCGDN5C
Included files are a printable version, a SVG for laser cuters and CNC routers, and the STEP file for easy modifications.
This was created for the enclousure I am also making for the sytem. More info to come soon after testing.
Note: I have not printed this, but have cut it from acrylic. YMMV Feel free to reach out if you have issues.
The author remixed this model.
This is the faceplate for RobertCowanDIY's Modular Filament Drawer System with room for the rectangle hydrometers you can get on Amazon.