I have a drawing that has true position called out on many many holes. However, there are several holes that have true position (boxed dimensions)called out but no datum reference or control box. They are called out true position relative to another hole that has true position datum control boxes. How do I put a tolerance on these? Do I use the datum from the referenced hole?
box dimensions we usually work to are a 2 thou tolerance +/_ 0.001 off target dimension, this might help http://help.solidworks.com/2012/English/SolidWorks/sldworks/c_Dimension_Tolerance_and_Precision.htm