Man, this is awesome. Read in engadget a guy made parts for his baby stroller for a fraction of the cost, that got me thinking. I'd like to make some of my stuff work too. And I have some questions if you could be so helpful . 1 - Are there any 3D designers that work in Linux/Mac? With Wine? Irrespective of the Operating System (I have Linux, Mac and Vista), what would you recommend of a designer that would be easy to get started with? 2 - How do I get started? Go to the tutorials section? 3 - How do I compute the cost of the part to make?