When I needed to cut a large circle to make a holder for my air hose, the schoolroom compass I normally use for layout proved too small for the task. So I "stretched" the legs and increased the 12" capacity of the compass to scribe circles up to 22" in diameter.Here's how to do the same: First, drill a hole in one end of a dowel to fit the compass needle. Then, drill a 3⁄32" pilot hole in the other end at a slight angle, as shown. Clip and sharpen the head of an 8d finish nail, and, using pliers, insert it into the angled hole. Slide the dowel assembly over the compass needle, replace the small compass pencil with a longer one, and you're ready to mark king-size circles. —Don Billmaier, Gilbertsville, Ky.