Simple Square Espresso Coffee Knock Box

A simple, efficient, square knock box with removable bar and puck splitter which people seemingly like. It works. I printed in PLA and haven't had any issues with it structurally. Support is purely for the locating step on the bar. I've used a dot of blutac each side, between the bar and the box, and it improves things significantly by stopping the bar jumping out and providing some damping. A mess shield/guard for this box is here.