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Craftsman 17550 - 3.5 Amp Detail Biscuit Jointer Operator's Manual
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BUTT JOINTSSee Figure 13.This type of joint is made by mating the end grain of oneboard with the edge grain of another. It is one of the weak-est joints in woodworking, and the bonding of glue on thistype of surface is poor. However, by using biscuits youcan create a stronger joint that has a mortise-and-tenoneffect.BUTTJOINTSBISCUIT(S)BISCUITSLOT(S)CENTERLINEMARK(S)MULTIPLEBISCUITSSTACKED Fig. 13MAKING BUTT JOINTS• Unplug the tool.• Place the two pieces of wood to be joined on a levelworkbench. Align them against each other in the ar-rangement in which they will be assembled.• Using a square, determine the location of each biscuitspline joint and mark the center of each joint by draw-ing a line across the edges of the two boards.• Set the fence angle at 90 °.• Loosen the height adjustment knobs, then pull andslide the fence up or down until the indicator point isaligned with the desired dimension on the scale.NOTE: The scale indicates the height of the fence fromthe center of the blade.• Tighten the height adjustment knobs securely.• Select the correct depth of cut setting to match thebiscuit size you are planning to use. If possible, makea test cut in a scrap piece of wood from the sameworkpiece.• Clamp the workpiece securely so that it will not moveduring the cut.• Plug the detail biscuit joiner into the power supply andprepare to make your first cut. Grasp and hold the toolsecurely with both hands.• Place the fence against the board and align the indica-tor marks on the fence with the centerline mark(s) onthe board.• Depress the switch trigger and let the motor build to itsmaximum speed, then gradually push the biscuit joinerforward to extend the blade into the wood.• When the base assembly bottoms out against thedepth of cut adjustment knob setting, pull back, releas-ing pressure on the spring. The blade will retract fromthe biscuit slot.• Repeat this procedure for cutting the slot in the matingworkpiece.• Once all biscuit slots have been cut, place a biscuitin each joint and dry-assemble the workpieces. Makesure each joint lines up and fits.• Disassemble the workpieces and place a bead of gluein each slot. Spread a bead of glue over the entiresurface of the joint. Reinsert the biscuits and assemblethe workpieces.• Clamp the workpieces together until the glue sets.OFFSET BUTT JOINTSSee Figure 14.The rails of a table or workbench are often offset fromthe front of the table legs. When offsets are required, it isnecessary to cut the slots in the rails first, then re-adjustthe fence to cut the slots in the legs.The procedure for cutting offset butt joints is identical tothe procedure for cutting butt joints.For example, if a 1/4 in. offset is desired, you would markthe centerlines for cutting a butt joint as mentioned in theprocedures for cutting butt joints, and cut the slots in theends of the rails. Next, you would raise the fence t/4 in. tothe desired offset and cut the slots in the legs.OFFSETBUTTJOINTBISCUITSLOTBISCUITCENTERLINEMARK(S)Fig. 1415 |
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