Hi I have been playing around with some IDF files and importing them then, seems to work pretty well with the freebie cutdown circuitworks you get. I notice that each electrical component is just an extruded sketch, in other words the whole thing is imported as a single part, with lots of features for the individual components. I want some of the components to be accurate models for clearance checking not just a simple extrusion though.... onto the question... ;-) 1.is it possible to convert a part with features, into an assembly, where each feature is a new seperate part? this would make it easy to 'replace part' with the correct full model. 2. another better way? Thanks Rich