4 model

Free

Mars Exploration Rover (Opportunity and Spirit)

Thingiverse

Free

Achilles Exploratory submarine

Thingiverse

Free

Anet E10 E3Dv6 full exploitation of 270 mm of the Y axis

Thingiverse

Free

PrusaSlicer profile for Easythreed X1 + extensive explanation of each setting

Thingiverse