German RepRap X400 Door Stops

The front door of the German RepRap X400 3D printer unfortunately swivels inwards when pushing the door to close. Thus the door can collide with the printer bed.
This simple thing prevents the door from moving inside. Simply push three of these door stops over the printer's front plate inside the door cutout. No drilling, no glueing, no printer modification!

Die frontseitige Tuer des X400 Druckers kann beim Schliessen in den Innenraum des Geraetes schwingen und dabei mit dem Drucktisch koll