I am glad I only have to use these drawing gears in school. My sweating palm often caused my grade to suffer by 1 band, and time and effort to draw at least 50% more than average. Then again, the sweaty feature was useful for testing transistor, until they become smaller than a grain of rice now. All those "Just In Case" learning and accumulation of expensive tools have progress to "Just In Time" of resources collection and relationship building. Am I a librarian now? Ling SM -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist