About this 3D model
This is based on the LED used by ScribbleJ : http://www.thingiverse.com/thing:6244 .This one use the same 80mm version from Dealextreme.I wanted something that can be bolted without fear that it will move or fall.It's easy to bolt it to the Cupcake Z bed and you have place for the wires.The LED Ring snap in place and stay in place. No Glue needed.I printed it in ABS to help since PLA is less "flexible".