not gonna lie, been a pita to print these on my Resin printer (Elegoo Mars 2 pro). 90% failure rate so far, but the few that were successful (or partially) allowed me to verify they are indeed a good replacement fit for the original.
So if your Shell is busted, or you like to print fancy colours (my personal goal is to make a fully transparant one), knock yourself out!
The author hasn't provided the model origin yet.