This is a storage container with a screw on lid that has a plastic transparent welding lens (that defeats UVs) embedded into it. This allows one to peer inside and see the contents of the container without opening. Simply give a filament change at layer height command at the height of the lens cavity just before it seals the lens in the following layer. Insert the lens when it does the change, but don't change the filament and resume. Make sure the lens is pressed in all the way around. The point is so that the nozzle can hover over and seal the lens in place. Any 50mm diameter x 2mm thick lens will work. Plastic or glass. If it has writing around the brim, face that down to the bed so the smooth side faces the nozzle. Wash your hands first with dish soap to remove skin oil before touching lens surface or edges because it can prevent adhesion. 3D printing settings

0.2mm layer height use change filament command or pause command to stop at layer just before encapsulation. Insert the lens and makes sure it is even with the wall of the print. Then resume print. It will trap the lens into the lid. Any 50mm lens that is 2mm thick will work. Glass works even better than a plastic lens. Print Lid face down with screw up. No Supports.

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