hey all! thanks for answering any of my previous posts. I am using mass elements to represent junction boxes of different sizes. First I draw a square then I right click on it, convert it to a mass element. I can also command acmep to extrudelinework. when I do this the command box prompts me to erase selected linework. either way i answer it the same thing oocurs, but for arguement sake i answer yes. then it asks for an extrusion height, i pick one and then I get a mass element. When I view the mass elements and pipe work from the top view the mass elements are not visible. Any other view they are visible. Have i done something wrong? I did the same thing in a different drawing and did not get the same results. any ideas? thanks in advance.- eric