About this 3D model

I am constructing a derivative of the MYDIYCNC project http://www.mydiycnc.com/ (mostly with LMUU bearings, some printed parts and a bit more sturdy construction I hope, for a small laser I got. But as the 1watt laser wont cut anything substantial, I was also thinking of mounting a dremel like tool. I ve already got a 135Watt one, so I wanted a second one for the CNC. But as I was starting to look at the dremel like tools, I came to understand that with 20more euros I could buy a small 850watt Router and that got me greedy :) so I just got a westfalia router http://www.ebay.de/itm/170443956364?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649 not the cheapest choice, but its sturdy construction, its base is removable and its shape was very helpfull for mounting on a cnc. the thing is quite heavy (1.6kilos without the base) so I had to create a more robust mounting printable part than the one I was finding around in thingiverse. I havent printed it yet so I dont know if this is successful for the 1.6 kilos and the inertia of the Westfalian beast, so proceed at your own risk I included the Freecad file with the main drafts if you want to change something or make a derivative. this is my first upload so any feedback would be appreciated, Im quite green on all things CAD