The short answer is someone designed it specifically to demonstrate calibration across different printing conditions and it took off in no small part because it’s cute and can serve as a filament sample.
This. If you really know the tugboat, you know almost every detail is a test of some sort. Many people don’t even know that 2 fit together perfectly(flip one upside down and rotate 180° - the smoke stacks fit into the box behind the cabin and they interlock)
The short answer is someone designed it specifically to demonstrate calibration across different printing conditions and it took off in no small part because it’s cute and can serve as a filament sample.
This. If you really know the tugboat, you know almost every detail is a test of some sort. Many people don’t even know that 2 fit together perfectly(flip one upside down and rotate 180° - the smoke stacks fit into the box behind the cabin and they interlock)