Download v2 of the outer can - I remade it completely for better quality and the inside now has a feature to prevent cartridges from falling upward in the can unseating themselves.. The canister inside was modified to allow for pens to fit in the middle.

Printed at .2mm. Don't try .3mm the threads will probably fail. Maybe .15 would be better even.

Credit to the original 3d modeler of the can, I just re-made it completely due to the poor stl export quality.

Edit: Added a 2mm shorter version "bottomV2" so hopefully it will fit 1g carts. but i dont have one to measure.

Edit 2: Added a plain can variant if you dont want the text or want to print and glue on your own label. or paint or whatever you want to do.