If you’ve ever tried to snap a diagonal chalkline across a piece of plywood, you know how frustrating it can be. Past a certain angle, the line’s hook just won’t hang onto the edge of the plywood. The drawing above shows how I deal with the problem. I use a utility knife to make a small nick in the edge of the plywood. Then I slip the string into the resulting slot. Now the string hangs on while I snap my line.
Phillip Carpendale, Nelson, None
