About this 3D model

I designed a spool holder based on http://www.thingiverse.com/thing:22292 This is a two piece design designed to fit in a small print bed. Fits on standard Prusa Mendel. Pieces are 10 mm thick. Designed to hold 5LB spools. Print Dimensions: Full Plate V1.1: 185 mm x 117 mm Base: 135 x 75mm Extension Arm: 147 mm x 100 mm Cross beam: 185mm x 15mm Version History: V1.0 First print designed, Holds 6mm or 1/4" rod (Pictured and uploaded.) V1.1 Modified spool bar holder to incorporate 8mm rod. (Uploaded) This is my first part designed, printed and uploaded. Any comments and suggestions is appreciated.