Glass Bed Z-Axis Spacer for CTC & Flashforge Printers

This shim is designed to snugly clamp onto the board behind the z-axis and trigger the Z-axis 2.2mm earlier than normally would occur. This is to be used with the small 3/32" replacement glass pieces available at home depot. Simply cut the glass to size (6" by 9"), add the z-spacer, and clamp to your heated bed. Be sure to lower your print bed 5 or 6 turns to prevent the nozzle from crashing, and then level the surface again. While it is not borosilicate glass, the relatively slow heating proces