Models
Automated 3D Printable Models. Makeshape.co have 3 Automated 3D Printable Models.
Automated Air Filtration System for Cat Litter Boxes – Universal Fit – Customizable
Thingiverse
3D_KIMBA
Free
Self-feeding filament pelletizer
Makerworld
Pi-Guy
Free
Self-Watering Planter Collection
Printables
Joseph Clarke
Free