The larger scale it's printed at makes it less fragile to handle.
Print speed at 30 - 40mm/sec.
4 - 5 shells.
A raft would be recommended.
Print Settings
Printer brand:
TEVO
Printer:
Nereus
Rafts:
Yes
Supports:
Yes
Resolution:
High
Infill:
8 - 20%
Filament_brand:
Pantech
Filament_color:
doesn't matter
Filament_material:
PLA, PLA Mixed, ABS, Nylon