INProfile Issue 3 | Page 26

Clamp Guide Pro Track This is the most sophisticated of these three guide systems. Although similar in construction and materials to the other guides, the Pro Track has a 125mm (5 inch) wide extrusion to make it extremely rigid and is available in jaw opening capacities of 610mm (24 inches), 1220mm (48 inches) and 2440mm (96 inches). Both edges of the Pro Track extrusion have a T-slot that engages the machined edge of one or two alternative carriage plates, allowing them to slide along the guide edge over the face of the workpiece. One plate is designed to take a router, the other a circular saw. This allows straight cuts to be made across the work face with no risk of wandering away from the guide edge. Power Tool Mounting The carriage plates are made of nylon machined along one edge to fit into the T-slot as well as to extend over the top face of the extrusion. A second T-slot in the top face of the extrusion accepts a tee-bolt and thumb knob, fitted through the plate extension to stop the plate and power tool from tipping. This arrangement allows open frames as well as flush panels to be cut or routed, the power tool being supported on the plate as it is fed across the workpiece. Both carriage plates are 19mm (3/4 inch) thick, the router plate having a circular recess of 190mm (7.5 inches) large enough to take most popular routers. To locate the router, the plate is pre-drilled to suit the table mounting holes in the router base on the Trend T9 & T5 routers. For other routers, both the router and carriage plate can be drilled to take countersunk machine screws (ensuring that the screw heads do not protrude below the plate). Alternatively, the router plate recess has a 30mm diameter centre hole 26 that takes a 30mm outside diameter guide bush. With this size guide bush fitted, the router can be simply dropped into the recess, allowing the guide bush to both centre and locate it allowing the normal down force to hold it in place while routing. The carriage plate for the saw measures approximately 355 x 240mm (14 x 9.5 inches) with the same thickness as the router plate but no recess. The saw can be either fitted to the edge of the plate by drilling both and using countersunk screws, or by cutting a central slot with a router cutter wide enough to take the blade and blade guard (always fit the saw in such a way that the blade guard continues to operate as before). When fitting jigsaws, a small hole can be drilled to take the blade and the base plate either screwed or clamped (with home made clamps) to the plate. Length Stops In order to limit the length or position of the cut, stop blocks to fit the Pro Track are available as an optional accessory. These simply engage in the tracks T-slot and can be locked with a T-nut as on the carriage plates. IP Autumn 1999