This object is made for checking the level on the build platform. It could easy work on most 3D printers, but the default settings is for Makerbot Replicator 2X. You just need to scale it to the build platform size of your 3D printer.
It will also show how good your print will stay on the build platform.
The size is 245mm * 150mm * 0.2mm.
Scale it to the maximum size your 3D printer can use. Also change the height to what layer size you want to use. ex. if you use 0.3mm layer height then change to that height, so it only put down one layer.

If you want to test more layer then just add the height as many layer you want to have. Keep in mind it will take more plastic for every layer you use.

I made this with Autodesk 123D Design.

I also made this object for leveling: http://www.thingiverse.com/thing:70939

You can also see guides and other help on my wiki+ site
:http://makerbotwiki.com/