Thermos base (FUNtainer compatible)
Description
Replacement base for FUNtainer and similar thermoses. Remove any old plastic or glue from the bottom of the steel thermos body. I also recommend removing the thermos lid during this process to prevent damage to the lid (just unscrew the lid). Press this base firmly onto the bottom of the thermos to snap into place. I found PETG filament material provides a good amount of flex and strength, but any typical filament material can be used (PLA, etc.). If the base is too tight with your material, adjust print settings, or expand the size a touch (a fraction of a percentage). If the material you use is too brittle, the base may crack when pressing onto the thermos. If this happens, use a more flexible material like PETG or expand the size a touch.
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