Assessments - 4, GPA: 3.3
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Next you would raise the fence 1/4 in. to the desired offset and cut the slots in the legs. Page 12 OPERATION OPERATION T- JOINTS See Figures 11-15. A T-joint is used when the end of a board is joined to the face of another board as shown in figure 11. Attaching shelves to bookcases and inner support braces to frames are typical applications. Actual cutting of a T-joint is as simple as any other cut. However, it is critical that you mark the centerlines, mark the intersection points for each slot, and cut each slot correctly. See Figure 11. HOW TO MAKE T- JOINTS ¦ Unplug your detail biscuit joiner. ¦ Place the two pieces of wood to be joined on a level workbench as shown in figure 12. The inside face of the vertical board should be facing up. ¦ Determine the location of each biscuit joint and mark the centerlines on each board as shown. The centerlines for both boards must line-up with each other. Measure carefully, these measurements must be accurate and precise. TIP: Measure twice and cut once. In addition to the centerlines lining up, the spacing of the biscuit slots from side-to-side must also match. ¦ Plug your biscuit joiner into power supply and cut slots in all boards that require end slots. See Figure 13. Follow procedures explained in "Edge-To-Edge Joints". Rotate fence angle to 90°, set fence height at desired dimension on the scale, select the correct depth of cut setting for the biscuit size you plan to use, clamp workpiece securely, then cut each slot at the marked centerline intersection. ¦ Next, you must remove the fence from your biscuit joiner in order to cut slots into the face of the vertical board. TO REMOVE FENCE: ¦ Unplug your detail biscuit joiner. ¦ Loosen height adjustment knobs, pull fence forward and slide it down the front base until it can be removed through the key hole slots. See Figure 14. Next, select the correct depth of cut setting for the biscuit size you plan to use, clamp workpiece securely, and cut each slot at the marked centerline intersection. WARNING: When the fence is removed, the cutter may be exposed. Use extreme caution to avoid serious personal injury. ¦ Place your biscuit joiner on vertical board as shown in figure 15 and align indicator marks on bottom shoe with centerline on vertical board. ¦ Place a straight piece of wood on the vertical board and securely clamp it flush against the bottom shoe. This piece of wood is used for a fence or guide. It must be square with the sides of the vertical board and parallel with the centerline. ¦ Align centerline on bottom of shoe with marked intersection for biscuit slot. 123 0 90° 45° T- JOINT CENTERLINE MARK(S) Fig. 11 Fig. 13 BISCUIT(S) HORIZONTAL BOARD BISCUIT SLOT(S) BOARD CENTERLINES BISCUIT SLOT CENTERLINE MARK(S) Fig. 12VERTICAL BOARD CLAMP HORIZONTAL BOARD TO CUT END SLOTS IN HORIZONTAL BOARDS Page 13 OPERATION OPERATION T-JOINTS (Continued) ¦ Plug your biscuit joiner into power supply and prepare to cut slot. ¦ Depress the switch trigger and let the motor build to its maximum speed, then gradually push biscuit joiner forward to extend the blade into the wood. ¦ When the base assembly bottoms out against the depth of cut adjustment knob setting, pull back releasing pressure on the spring. Blade will retract from biscuit slot. ¦ Repeat this procedure for cutting all required slots in vertical boards. ¦ Once all slots have been cut, place a biscuit in each joint and dry assemble the workpieces. Make sure each joint lines up and fits. ¦ Finally, disassemble the workpieces and place a bead of glue in each slot. Also, spread a bead of glue over the entire surface of the joint. Reinsert the biscuits and assemble the workpieces. See Figure 11. ¦ Clamp workpieces together until the glue sets up. Upon completion of a T-joint cutting operation, reinstall the fence on the front base by reversing "TO REMOVE FENCE" procedure. Place height adjustment knob bolts in key hole slots and align bolt heads with the slots on back of front base. Slide fence up the front base to desired depth of cut. Tighten height adjustment knobs securely. MITER JOINTS See Figures16-18. There are two types of miter joints that can be made using biscuits: flat miters and edge miters. Flat miters are used when making picture frames. Edge miters are used when making boxes or things where you don't want to show the end grain of the wood. Butt joints show the end grain in wood. HOW TO MAKE FLAT MITER JOINTS ¦ Unplug your detail biscuit joiner. WARNING: Failure to unplug your detail biscuit joiner could result in accidental starting causing possible serious personal injury. ¦ Place the pieces of wood to be joined on a level workbench as shown in figure 16. ¦ Using a combination square, draw a line through the center of each joint perpendicular to the mitered edges. ¦ Set fence angle at 90°, set fence height at desired dimension on the scale, select the correct depth of cut setting for the biscuit size you plan to use, and clamp workpiece securely. ¦ Ali...