Innovative approach guarantees perfect results（创新的方法保证完美的结果）.pdfVIP

Foolproof Crosscut Sleds Innovative approach guarantees perfect results B Y A L A N T U R N E R he tablesaw may be your shop’s most valuable cutting runners at the bench. Then, with the runner in the miter slot, I tool, but for precise, repeatable crosscuts it needs a little trim each individual base piece with a sawcut that creates a zero- help from a sled. The sled holds the work securely with clearance edge that is perfectly parallel to the blade. Tits long edge at a precise right angle to the blade, so To help ensure that the runners don’t wiggle in the miter slots you get perfectly square ends when cutting pieces to length, the and yield inaccurate cuts, I lightly clamp them snug against the key to gap-free joinery. With a zero-clearance slot cut through it, inside edge of the slots when gluing on the front fence. the sled even prevents chipout at the edges. And, at the critical step of attaching the rear fence, I found a way The trick to building an accurate sled has always been to get the to easily fine-tune the angle during glue-up so that it is perfectly runners to fit the miter slots snugly without any wiggle room, and square to the blade and stays that way. Armed with these simple to attach the rear fence perfectly square to the blade—neither is techniques, you can crank out a number of sleds suited to specific easy to pull off. The technique I use at the Philadelphia Furniture tasks, instead of struggling to make just one. Instead of the typi- Workshop simplifies both tasks and ensures dead-accurate results. cal medium-size sled, which is undersized for plywood cuts but For starters, I assemble the base in two pieces, first attaching the too bulky for narrow cr