About this 3D model

i bought a line laser module off ebay to make a maker scannerhttp://abarry.org/makerscanner/1-makerscanner.html i wanted to make a simple frame and found this one http://www.thingiverse.com/thing:428178but the laser mount wouldnt work with mine so i changed it the hole might be a bit small so i added the slot and gouge works with this laser or any 11mm diameter laserhttp://www.ebay.com.au/itm/Red-Line-Laser-Module-Focus-Adjustable-Laser-Head-5V-Industrial-Grade-5mW-650nm-/400781449348?pt=AU_Business_Industrial_Industrial_Supply_MRO&hash=item5d506f9884