M3D Safety Shield

The M3D Micro doesn't have any end-stops, and may have trouble drifting. Combine those two facts, and an M3D Micro can try to print off the front edge of the print bed. And in severe cases, it will drive itself down into the crack between the print bed and the case, and glue them together.

And it took me a long time with the Sword of Xact Zero to get them apart again.

This Thing is a wall that sits just behind the front wall of the print bed. It doesn't interfere with good healthy printing, but it should keep the print head from drifting off the front.