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(disclaimer: I'm a full-on Free Software geek, Linux and stuff)

I used SolidWorks for this one. When I was in school, I didn't have good enough Free Software tools to creating good CAD designs, FreeCAD was good, but lacked in some aspects. I believe I could do the same design on FreeCAD today though. :)

I'll be checking on your posts then...

Frankly, your design is very cool, I did not see any mistakes
You have a good imagination

I wait for your turn to give me your opinion on my designs