About this 3D model

I'm trying to upload a Thing-a-day this February. makerblock.com/2011/02/makerblock-thing-a-day/ I wanted to use the mounting area for the extruder board for a stepper board. This Thing includes offsets. Day 4: Extruder to Stepper mounting plate. thingiverse.com/thing:6106 Day 3: A shelving unit bracket. thingiverse.com/thing:6001 Day 2: A mirror bracket. thingiverse.com/thing:6000 Day 1: A bathroom hook. thingiverse.com/thing:5999