Before revision:  We present a computational and theoretical study of  a many-body Brownian ratchet, in which a "gel " of multiple, stiff polymerizing filaments pushes a diffusing obstacle.
After revision: Many forms of cell motility rely on Brownian ratchet mechanisms that involve multiple stochastic processes. We present a computational and theoretical study of a many-body Brownian ratchet, in which a "gel " of multiple, stiff polymerizing filaments pushes a diffusing obstacle.