5 model

Free

UM3 side rack

Thingiverse

Free

UM3 Vibration Dampener

Printables

Free

UM2/UM3 Dial Indicator (Gauge) Rail Mount

Thingiverse

Free

Filament holder for the UM3 spools

Thingiverse

Free

Ultimaker 3 Front Mount Filament Guide

Printables