About this 3D model

This fits into the screwholes of the Ultimaker Z-carriage. http://www.youtube.com/watch?v=zAHgWbq04nk The glass can be mounted using the smaller holes, e.g. by some small wooden piezes having a 3.2mm hole. The glass plate should be 22x24 cm to fit in there. The sides will overhang, but I could not find larger double sided FR4 PCBs than 30x20cm. I also recommend to diagonally cut away the glass corner over the minx-miny corner, where the pcb has the dent, to have initial through-extrusion also with the glass. A 2cm hole in the glass would also be the possible if you don't have a second extruder.. The image is of the previous version, which cracked the glass. I will change the images asap.