Where we're going we don't need roads (aka BTTF Launcher)

This is a ball acceleration module that launches balls up a ramp under the flying Delorean (Lego Speed Champions 77256) and it's flame trail before making a small jump and exiting through the netted and rubber damper outbox.

The inbox uses a combination agitator and gate in the form of a central worm screw and Technic rotor blade to keep a steady ball flow through the accelerator which is composed of two spinning tires.

This large module covers just under one standard table and breaks apart into 8 sections for transport