7 model

Free

Sphero Obstacle Course

Thingiverse

Free

Scx 24 rc crawler obstacle

Thingiverse

Free

Spike obstacle mini Crawler

Thingiverse

Free

Flames of War Anti-Tank Obstacle

Thingiverse

Free

Jersey Barrier Obstacle for fingerboard

Thingiverse

Free

rc obstacles

Thingiverse

Free

Modular Sphero Racetrack - straight with speed bump obstacle

Thingiverse