I am trying to make a model of the part per the drawing below.  My problem is that the R.75 on my model goes from top to bottom where on the isometric drawing it goes from bottom to top.  Any ideas on what to do here?  Also what do you think the .075" +.010/-.010 dimension is referring to.  I'm not really sure if I am explaining myself clearly but i basically want my model to look like the one in the isometric view.

Any help is greatly appreciated.

Chris