This piece sits on the lower mounting for the X pulley motor, to prevent the bowden tube from being caught in the belt and pulley. The idler pulley prevents the belt from easily slipping during X acceleration without necessitating extreme tension. From my experience with the Daemon, a single pulley is enough for the task, so that's why this part is designed around the one.

v1.0 - The original release version, made for single idler on left side. longer screws will be required. recomend bearing stack or smooth idler pulley, secured with a flat or button head screw to minimize bowden catching.