Tony Smith wrote: > Your blacksmith friend was mistaken. Don't forget the numbers we are > talking about are very small, I didn't realise blacksmiths use > micrometers to measure their work! I didn't realize you did use micrometers to measure red hot holes in metal blocks. So yes, if you measured them, you know how they behave. Gerhard -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist