DeWalt 37-360 Taper Cuts, Cutting a Rabbet, Jointing or Planing Warped Wood, Direction of Grain

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TAPER CUTS

One of the most useful jointer operations is cutting an edge to a taper. The method can be used on a wide variety of work. Tapered legs of furniture are a common example.

Instead of laying the piece on the infeed table, lower the forward end of the work onto the outfeed table. Do this very carefully, as the piece will span the knives and they will take a “bite’” from the work, with a tendency to kickback unless the piece is firmly held. Now push the work forward as in ordinary jointing. The effect is to plane off all the stock in front of the knives to increasing depth, leaving a tapered surface.

The ridge left by the knives when starting the taper may be removed by taking a very light cut according to the regular method for jointing, with the infeed table raised to its usual position.

Practice is required in this operation, and the beginner is advised to make trial cuts on waste material. Taper cuts over part of the length and a number of other special operations can easily be done by the experienced craftsman.

CUTTING A RABBET

When making a rabbet cut, as shown in Fig. 40, the cutterhead guard must be removed. AFTER THE RAB-BET

CUT IS COMPLETED, BE CERTAIN GUARD IS RE-

PLACED.

Use pushblocks whenever possible, as shown.

1.Adjust the fence so that the distance between the end of the knives and the fence is equal to the width of the rabbet.

2.Lower the infeed table an amount equal to the depth of the rabbet. If the rabbet is quite deep, it may be necessary to

cut it in two or more

passes. In that event, the table

is lowered an amount equal to about half the depth of the

rabbet for the first pass, then lowered again to proper depth

 

Fig. 40

to complete the cut.

 

JOINTING OR PLANING WARPED WOOD

If the wood to be jointed is dished or warped, take light cuts until the surface is flat. Avoid forcing such material down against the table; excessive pressure will spring it while passing the knives, and it will spring back and remain curved after the cut is completed.

DIRECTION OF GRAIN

Avoid feeding the wood into the jointer against the grain as shown in Fig. 41. The result will be chipped and splintered edges. Feed with the grain as in Fig. 42, to obtain a smooth surface.

REAR

FRONT TABLE

TABLE

CUTTER

WRONG FEED - AGAINST THE GRAIN

Fig. 41

REAR

FRONT TABLE

TABLE

 

CUTTER

CORRECT FEED - WITH THE GRAIN

Fig. 42

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Contents DJ-30 12 Jointer Safety Guidelines Definitions General Safety RulesFailure to Follow These Rules MAY Result in Serious Injury Additional Safety Rules for Jointers Failure to Follow These Rules MAY Result in Serious InjuryGrounding Instructions Power ConnectionsMotor Specifications Functional Description Three Phase OperationExtension Cords Definitions of Jointing and Planing Operations Unpacking and Cleaning Removing Shipping CrateRemoving Machine from Shipping Skid Selecting Floor SpaceAssembling Jointer Fence AssemblyAssembling Dust Hood Single Phase Installation Three Phase Installation START-STOP Switch Fence OperationAdjusting Fence Positive Stops Infeed Table Adjustments Outfeed Table Adjustments Adjusting Belt TensionAdjusting Spring Tension of Cutterhead Guard Placement of Hands During Feeding OperationBeveling Jointing AN EdgePlaning or Surfacing Taper Cuts Cutting a RabbetJointing or Planing Warped Wood Direction of GrainMaintenance REMOVING, Replacing and Setting KnivesMO C Maintenance AccessoriesCanadian PORTER-CABLE Delta Service Centers