Customizable Printbed Calibrator

This calibration object was made to fulfill the need to manually calibrate a XYZ Da Vinci 1.0 with 0.92 repetier firmware.

The sample `.stl` file is made for the **Da Vinci 1.0** printer with **5mm** height.

Customize this object in [Makerbot Customizer](http://www.thingiverse.com/apps/customizer/run?thing_id=693083) or [OpenSCAD](http://www.openscad.org/)

PS: This is my first OpenSCAD project, suggestions are greatly appreciated. Please let me know if you have made, or plan to make it!