This handy little tripod stand allows holding a filled Moka Express (or similar) funnel upright while you are busy with the rest of your coffee routine, like filling the bottom chamber with boiling water (for better coffee and faster brewing).
The shared file is designed for the 2-cups version of the Bialetti Moka Express that has a stem of diameter 10mm. The model thus has a 10.4mm hole in the center. You can scale up or down this model to fit any Moka Express as far as I know.
Example: the 6-cup version has a stem of 15mm. The hole should be 15.4mm, thus the model needs to be scaled to 148% = 15.4/10.4
The author hasn't provided the model origin yet.