Boy, what I have forgotten in a few years! I was a Solid Designer user back when I worked for Agilent/HP. Then I switched jobs and CAD to Inventor. Now I'm not doing and have not done CAD in about 3 years, and have forgotten SO MUCH!!! (especially about the Co-Create product CAD style/methodology). Anyway, I can't seem to figure out how to select the center of radii or circles as a starting point for construction lines, etc. Is there a way to do this? I often want to create geometry at specified distances from holes, fillets, pad edges, etc. Also, is there a way to project construction lines from one workplane to another? Thanks! -Kieran