Crackbot is a wild walking robot with swinging arms, swivelling waist, and searching eyes. He's out of control until you clap your hands to control him through his sound-sensor tail.
This Crackbot was fully restored in 2021 with a custom CAD modelled replacement tire that was 3D-printed from flexible gray rubber filament.
The 3D-model of the replacement tire can be downloaded from the Procyon Robotics Thingiverse account.
The full restoration of Crackbot can be seen in my Robot Restoration YouTube channel.