Procedure For Cutting The Project Front And Back - Sears Craftsman 171.25450 Owner's Manual

25) Lightly clamp the back-up board in place.
26) Position the project side against the front of the base so that the top surface abuts the left front stop bIock, The use of a front back-up
board at this step is also recommended. It is positioned between the project side and the cIamping bar as shown in Figure 61. The front
back-up board is described in Step 7 above.
27) Continue as in Steps 8 through 19 above.
28) After the cuts have been made,the workpieces should look like those illustrated in Figure 62.
29) Remove the workpiece and the back-up boards from the Dovetail Fixture.NOTE:THE BACK-UP BOARDSARE REUSABLE.
30) TO CUT CORNER #4 OF THE PROJECTLEFTSIDE, position the top back-up board on top of the base so that it fines up with the front of
the baseand abuts the left top stop block as shown is Figure 6!.
31) Continue as Steps 27 through 32 above.
32) At this stage the project sides should look like those iIfustrated in Figure 56,
THEFOLLOWING DESCRIBES THEPROCEDURE TO BEFOLLOWED FORCUTTING THEPROJECT
FRONTAND BACK:
NOTE:Any joint fit adjustmentsthat may be required can only be made when cutting the project front and project back
pieces. That is, adjustmentsare made to project front end backpieces ONLY not to the side pieces,
.40"DIA,GUIDE B USHING
SEARS C RAFTSMAN STRAIGHT\ _
ROUTER BIT#25415 _
1) Assemble the .40"guidebushingto the routerbaseplate, a sdescribed in a previoussection.This is thesmallerof thetwo guidebushings
furnishedwith this product,
2) InstallSearsstraightrouterbit, #25415,to therouterasdescribedin your RouterOwnersManualShankengagement shouldbe a
minimumof 3/4".
_i MAKE SURE THAT THE ROUTER BIT fSALIGNED W ITH OR CENTERED tN THE HOLE tN THE GUIDE B USHfNG. TO DOTHIS, LOOSEN
SCREWS HOLDING BASE PLATE O R ADAPTER PLATE T OROUTER, CENTER GUIDE B USHING HOLE WITH RESPECT TOROUTER BfT AND RETIGHTEN
SCREWS SECURELY
_ WHEN SETTING THE DEPTH OFCUT, MAKEABSOL UTELY SURE THAT THE COLLET NUT DOES N OT CONTACT (TOUCH) THE GUIDE
BUSHING. THIS CAN CAUSE T HE GUIDE B USHtNG T O HEAT UPEXCESSIVELY DURING C UTTING W HICH CAN CAUSE D AMAGE TOTHE TEMPLATE. TO
CORRECT THfS SITUATION OR PREVENT ITFROM OCCURRING, REPOSITtON THE ROUTER BITtN THE ROUTER.
3) Adjustthedepthof cut. Thedepthof cut for an OPEN DOVETAIL J OINT is equalto thethicknessof the matingpart, Thatis:
FORCORNER # 1 OFTHEPROJECT F RONT, THEDEPTH OFCUTIS EQUAL TOTHETHICKNESS O FTHEPROJECT R IGHT SIDE.
FOR CORNER # 40FTHE PROJECT F RONT, THEDEPTH OFCUTIS EQUAL TOTHETHICKNESS O FTHEPROJECT L EFT SIDE.
FOR CORNER # 2 OFTHEPROJECT B ACK, T HEDEPTH OFCUTIS EQUAL TOTHETHICKNESS O FTHEPROJECT R IGHT SIDE.
FORCORNER # 3 OFTHEPROJECT B ACK, T HEDEPTH OFCUTIS EQUAL TOTHETHICKNESS O FTHEPROJECT L EFT SIDE,
Usethedepthgaugeon thebaseof theDovetail F ixture, a s described in a previoussection,asa startingpoint.
, 4) Atthisp_intitwi__benecess_ryf_ry_ut_makeat_pb_ck_upb_ard_Thereas_nsf_rthet_pback_upb_ard_ret_minimizesp_intering_
providesupportfor thetemplateandpreventdamage to the Dovetail F ixlure,Thetop back-upboardis a scrappieceof wood havingthe
following dimensions:
LENGTH: 6"to 8",sufficientlengthso that it canbe clampedbythe top clampingbarand be usedmorethan once;
WIDTH: 2 "widerthanthewidth of theprojectfront (or back);
THICKNESS: 1/8"to 1/# thickerthanthethicknessof the projectfront (or back);THISIS TOPREVENT ACCIDENTALLY CUTI'ING INTOTHE
DOVETAIL FIXTURE.
This canalsobeaccomplished by usingmorethanonepieceof scrapas longas the resultantlength,width, andthicknessareas described,
3?