A simple tray to catch the priming filament extruded before a print starts.
Easy to print, print the base upside-down, and print the tray normally, no supports required for either. Glue with superglue or similar.
The feet fall easily into the slots of the aluminum extrusion and the tray simply sets atop them.
Here is the OnShape link for changing/remixing.
The author marked this model as their own original creation.