I am trying to convert a collada file to and stl. I've downloaded meshlab, although I have no clue how to use it. The measuring tool shows my object at about two inches..or two somethings, anyway, but when I try to upload to Shapeways it it comes out microscopic. Help!
Your .DAE file should upload direct to Shapeways as is.
If you need to convert it . Open it in Meshlab and export as .STL.
Then open it in Netfabb http://www.netfabb.com/basic.php (more use friendly)
Here you can check, measure, repair and scale,