Creating A Classic Edge Joint – Tf 1400 Set

Transcript

No. 110 Creating a classic edge joint A Description Edge joints are classic solid wood T-joints. They enable work with wood and prevent warping. Earlier an edging planer, an edging saw and a basic plane were usually required to create this joint. Today this joint can be created relatively quickly and precisely using the router. The edge tongue and groove have been conically worked out when creating the edge joint using hand tools. When creating this joint using a router the edge tongue and groove can be aligned parallel to each other. A prerequisite is that the joint is sturdy and precise. 110/01 1/4 Areas of application (selection) •• Securing plates through sliding dovetails •• Shelf construction •• Window shutters in board design Advantages of this application: •• High-quality craftsmanship •• Can be used for solid wood •• Saves time and costs during gluing. No clamps are required 110/02 Disadvantages of this application: •• Can generally only be used on solid wood. B Tools/Accessories 110/03 Festool offers different alternatives for creating edge grooves. The two alternatives should facilitate the selection, even when components are already available: Designation Order No. Alternative 1: 110/04 Basic unit CMS-GE (see Fig. 110/2) 561228 or: Guide extension MFT 3 VL (See Fig. 110/7) 495510 Module mounting CMS-OF (see Fig. 110/3) 570251 Router OF 1010 EBQ-Plus (See Fig. 110/4) 574233 Alternative 2: Bench-mounted router TF 1400 Set (see Fig. 110/5) 570256 General: MFT 3 (see Fig. 110/7) 495315 Clamps MFT-SP 488030 Sliding table ST (see Fig. 110/6) 492100 Dovetail cutters (depending on material thickness) 110/05 110/06 Dust extraction set CS 70 AB 488292 Fixed clamps MFT-SP 488030 Kickback stop FS-RP 491582 CTM series mobile dust extractor 211/07 211/08 2/4 C Preparation/Set-up First the edge groove is cut at the multifunction table using the hand-guided router. Then the edge tongue is cut. As the sliding dovetail is relatively narrow, this work should be completed at the stationary router. 110/09 1. Cutting the edge groove with an OF 1010 and a MFT/3 • A  lign guide rail on the MFT in the centre, to the material thickness and at a right angle to the stop rail. • Mark the centre lines of the edge groove on the workpiece. • Position the workpiece on the stop rail and clamp using the fixed clamps. • Fit the guide rail adapter on the OF. • Position the OF on the guide rail and secure this against tilting using the side support at the bench of the OF. • Align the front centre marking on the cutter table to the scribe line (see Fig. 110/10). • The edge groove is not cut through. It ends approx. 15 mm before the workpiece end. This position is adjusted with the kickback stop on the guide rail (see Fig. 110/11). • Adjust routing depth to approx. 1/3 of the workpiece thickness. 110/10 Tip: Position splinter-free backing at the cutting edge of the workpiece in order to avoid splinters at the edge. • Set the speed to level 6 and connect the dust extractor. 110/11 E Procedure Switch on the router and cut the groove at consistent speed (not too slow in soft wood) to the set stop. Repeat the steps described here to cut the next groove. 110/12 2.Cutting the edge tongue •• The router is fitted in the module mounting CMS-OF to create the edge tongue. The mounted edge cutter is used again. •• To adjust the cutting height the edge groove in the splinter-free guard is used (see Fig. 110/13). •• The edge tongue should not make contact with the groove base. 110/13 3/4 C Preparation/Set-up The width of the edge tongue is taken from the original edge groove. As preparation the rails should be pre-fabricated accordingly. • • • 110/14 E 110/15 Adjust the cutting stop using the marking (see Fig. 110/14). Due to the diagonal cutter blades, the marking only relates to the point of the blade which matches the table surface (see Fig. 110/15, arrow). Place the stop ruler as near as possible to the cutter. Mount the pressure springs and adjust to material thickness. Procedure •• Perform a test cut. The cut is effected at the two bottom edges of the rail. •• Check whether the edge tongue can move in the edge groove. The sliding dovetail should be a little tight in the edge groove. If necessary adjust the stop and complete another test cut. If the correct setting is identified cut all rails. •• Use a push stick for moving forward! 110/16 So that the sliding dovetail slides into the edge groove easier, the edge tongue is positioned diagonally at the front using a chisel. 3. Strip off the edge tongue and sliding dovetail The sliding table is used for stripping off. •• Align the stop of the sliding table to the stop of the cutter stop at a right angle. •• The cutter stop is pushed back by the dimension to be stripped off. 4. Cutting off the sliding dovetail 110/17 110/18 110/19 110/20 Our example for use is a recommendation tried and tested in practice. However the actual conditions pertaining in each situation are completely outside of our control. We therefore do not provide any form of guarantee. Any legal claims arising out of this are not to be made against Festool. Please observe without fail the safety and operating instructions included with the product. www.festool.com 4/4