Popular Woodworking 2003-12 № 138, страница 53
When a router is vertical under a table, the bit spins counterclockwise when viewed from above. Whether cutting the edge or interior of a workpiece, feed clockwise around the fence. height adjustment. The router-lift plates make it possible to fine-adjust the height of a more-affordable fixed-base router from above the table, providing the best of both worlds. Some of the newest fixed-base and plunge routers now offer built-in, through-the-base height adjustment. This makes the router lifts obsolete, though they're still the best option for older (as well as many of the newer and less-expensive) router models. This brings us back to the question of what router to use in your table. A IV2-to 2-horsepower router can be used successfully in a table, but it will limit you to small- or medium-diameter bits. In general, it makes more sense to use a 21/2-to 3-hp router in a table to maximize the benefits of the table. The other strong recommendation is to outfit your router table with a variable-speed router. Because your table will support a larger-motor router, you can successfully use large-diameter bits. To get the best performance from these bits, they should be run at slower speeds, so a variable-speed router will give you optimum performance in your table, whether using smaller grooving bits or panel-raising bits for making doors. That said, with the variety of table-friendly routers and router lifts available, it's impossible to recommend either a plunge or a fixed-base router as best for use in a table. You'll need to determine what your budget will allow and take When adjusting the position of a router table fence, loosen the clamps at both ends of the fence and slide it forward or back. To make fine adjustments, tighten just one clamp and move the loose end of the fence. into consideration what routers you already own. With all the choices currently available, there's no reason you shouldn't be able to buy or build a router table that allows you to adjust and operate the router from above the table surface. It's up to you to choose how you assemble the hardware. A Closer Look at Router Lifts Router lifts are available in a number of varying designs, ranging from a retrofit kit to replace the spring in a plunge router to heavy-duty mounting platforms that include the table plate. Prices range from $100 to $400, so you should know what you're getting into before you spend any money. Ultimately, the router lift should adequately support the router underneath the table without any concern of deflection or slipping. Deflection will cause the bit you are using to deviate from a 90° angle to the table, ruining the cut. The lift also should adjust the height smoothly in measurable and repeatable increments, and not interfere with the table surface. Most lifts that are on the market are designed for use with fixed-base routers, which is fine, but you should choose a router with variable-speed control to take maximum advantage of the larger motor and available larger-diameter bits. Some lifts also will allow you to change bits from above the table. These lifts raise the router high enough through the tabletop (while not running) to use both wrenches (or one wrench and a shaft lock). This is a great feature and highly recommended. Using the Router Table When using a router in a router table, you will need to pay extra attention to the tool's feed direction. When your router is mounted upside down under a table, the bit spins counterclockwise (as viewed from above). Whether you are cutting the edge or the interior of a workpiece, imagine that you are feeding it clockwise around the fence - right to left as you face the fence. The rotation will help keep the board pressed against the fence, making it safer to make the cut. When using a fence, popwood.com 73 |
