The question 'How did Anycubic manage to make an additional bulky multicolor system completely disappear?'

The video begins with a blurred 3D render of a 3D printer and filament spools, then transitions to a clear view of the Anycubic Kobra X 3D printer with its multi-color filament system. It then zooms into the print head, revealing its internal components, specifically highlighting a dual-layer extrusion gear and a patented camshaft design. The video shows how the camshaft mechanism switches between four filament channels and a neutral position, driven by a motor and worm gear. Finally, it compares the mechanism to a multi-color ballpoint pen.