French Press Replacement Bushing

I've had every type of coffee machine from the single cup Melitta to a huge Saeco automatic coffee/cappuccino and I've even made "cowboy coffee" more than a few times when no machine at all was available. That's why I sort of standardized on the French press, it's simple, it's easy to clean and does not take up much space. I like my designs elegant which to me means pleasingly ingenious and simple and last week when my French press failed my world was shattered, sort of. 3D printer to the rescu