Craftex CT052 Manual Download Page 7 | Manualshive

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Craftex CT052 Manual Download Page 7

7

CAPACITIES

The CT052 is designed to produce half-
blind dovetail joints with a router. 7/16"
guide bushing, and 14°, 1/2" dovetail router
bit. Half-blind dovetails are very strong and
are commonly used in fine drawer
construction. The term "half-blind" refers to
the fact that the pins and tails can only be
seen from the side.

1.

The CT052 is capable of processing

material up to 1-1/4" thick and up to 12"
wide.

2.

It is designed to be used with 1/4" shank,

1/2", 14° dovetail bits only. The bit should
protrude approximately 19/32”" below the
base which is the thickness of the comb
plus the depth of the pin.

3.

The maximum router base size that can

be used with this jig is 7" in diameter.

4.

The guide bushing should protrude 1/8"

to 3/16" from the base of the router and be
7/16" in outside diameter (0.0.).

IMPORTANT:

This jig can only be used

with a guide bushing attached to your router
base.

The table below shows the pin widths,
produced by this jig's 1/2" template.

Figure 2 shows thickness of the comb plus
depth of the router is the total depth

PREPARATION

It is important to plan your work before
starting. If joining multiple pieces for a
drawer or series of drawers, it is best to label
the pieces as front, back and sides and
which face will be inside or outside. It is also
best to label the ends so it is clear which end
mates with another. Labeling will save setup
time and avoid costly mistakes in the long
run.

A typical drawer has a 3/4" thick front with
sides made of 1/2" material. The dovetail
jig's design requires that you use the same
stock thickness for the back as you do for
the front. Your drawer fronts and backs must
be at east 5/8” thick to fully accommodate
the length of the dovetails without
compromising strength.

After all the pieces have been  cut to size
and checked to ensure square-  ness, set
them on a bench in the order that they will
be fitted together. Lay each piece down so
the inside faces up. Label each piece on the
inside as shown in Figure 3.

Figure 3 shows the pieces laid out for labeling

Template Size

Bit Size

Bushing Size

Pin Width

1/2"

1/2"

7/16"

9/16"

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Summary of Contents for CT052

Page 1: ...CT052 12 DOVETAIL JIG Manual ...

Page 2: ...ns 8 Clamp Adjustment 9 Side to Side Setup 9 Template Adjustment 11 Fence Adjustment 12 Operations 13 Regular Use 13 Rabbeted Drawer Fronts 15 Flush Offset Joints 15 Rabbeted Joints 15 Finger Box Joints 15 Trouble Shooting 16 Tear Out 16 Excessive Fit 16 Incomplete Fit 16 Offset Edges 17 Fit Too Tight or Too Loose 17 Uneven Fit 17 Parts Breakdown 18 Parts List 19 Warranty 20 ...

Page 3: ...ou took in setting up this tool to work the way you need it to Once set up you will probably be able to dovetail a drawer in less than three minutes COMMENTARY The specifications drawings and photographs illustrated in this manual represent the Model CT052 as supplied when the manual was prepared But owing to Craftex policy of continuous improvement changes to the Model CT052 may occur at any time...

Page 4: ...s 9 DO NOT FORCE TOOL Tools work better and more safely when they are allowed to work at their own speed 10 WEAR PROPER APPAREL Do not wear loose clothing gloves neckties or jewelry that might get caught in moving parts Non slip footwear should be worn Wear a hat or other protective head wear if your hair is long 11 NEVER STAND OR LEAN ON TOOL 12 USE SAFETY GLASSES AND EAR PROTECTION Also use a DU...

Page 5: ...and like all power tools proper care and safety procedures should be adhered to Overall Dimensions Height 6 Width 17 Depth 12 Shipping Weight 22 Net Weight 20 lbs Capacity Material Thickness sides 5 16 to 1 1 4 Material Thickness front back 5 8 to 1 1 4 Maximum Width 12 Joint 5 8 with 1 2 Template Construction Jig Pre Formed Steel Clamps Single Lever Adjustable Cam Template CNC Machined Aluminum R...

Page 6: ... top and front of the dovetail Tighten until secure Figure 1 B MOUNTING Place the jig on your bench top so the front lap rests against the front of the bench top Locate the mounting holes in the rear of the jig Mark the holes locations with a pen and determine whether to use nuts and bolts or lag screws Drill the appropriate size holes Secure the jig to your bench top Screw can be tighten by inser...

Page 7: ...1 2 template Figure 2 shows thickness of the comb plus depth of the router is the total depth PREPARATION It is important to plan your work before starting If joining multiple pieces for a drawer or series of drawers it is best to label the pieces as front back and sides and which face will be inside or outside It is also best to label the ends so it is clear which end mates with another Labeling ...

Page 8: ...ALLY IN THE FRONT OF THE JIG THE INSIDES OF THE BOARDS ALWAYS FACE OUT 1 The hand levers clamp your work piece in place 2 The fence knobs hold the fence in place Loosen these knobs to adjust fence position Router travel is stopped when the router base contacts the fence 3 The upper side stops align the work piece horizontally under the template 4 The front side stops align the vertical work piece ...

Page 9: ...pieces during router Since tails and pins are routed in one operation The work pieces must be offset The amount of offset is equal to the width of the template fingers IMPORTANT All pieces must be cut perfectly square for the jig to work properly To adjust the side stops 1 Start with the drawer back It goes under the top clamp and the template This piece lies horizontally Move it near either one o...

Page 10: ...m the front of the jig and remove the front clamping system by unscrewing the clamping adjustment knobs 10 Scribe a line exactly 1 2 from the edge of horizontal piece Use the technique shown in Figure 7 Hint if you are not using the 1 2 template scribe the line so the distance from the edge equals the width of the template fingers 11 Loosen the front side stop screws and slide the front side stop ...

Page 11: ... template fingers back from the edge by that sum See Figure 8 Figure 8 shows checking the template to make sure it is parallel to the top of the vertical pieces The inside faces are showing NOTE Ensure that the front edge of the template is parallel to the edge of the vertical work piece To maintain a high degree of accuracy when adjusting the template measure at one end of the jig then measure at...

Page 12: ...the distance from the edge of the router base to the edge of the guide bushing and add it to the distance you calculated in step 2 The distance calculated in step 3 is the distance that the fence should be back from the template Loosen the two fence lock knobs and slide the fence into position Ensure that the fence is parallel to the front of the template and tighten the two lock knobs NOTE The pr...

Page 13: ...t It may be necessary to make additional adjustments to the dovetail jig to improve the fit With the jig completely adjusted you should be ready to test it out Review all safety rules if you are unsure abut the risks associated with operating a router in conjunction with this jig A REGULAR USE To use the dovetail Jig 1 Start with joint 1 that you set up in Section 7 2 Position the mated pieces in ...

Page 14: ...8 cut it in two stages First remove the material IN FRONT OF the fingers Second remove the material BETWEEN the fingers Figure 11 shows dovetails after cutting 4 Remove both pieces from the jig and join the dovetails 5 It may be necessary to tap the two pieces together with a hammer and wood block see page 17E If alignment is so poor that the two pieces will not fit together line up each piece as ...

Page 15: ...e side piece it is likely that the router bit will cause tear out each time the bit exits the side piece To prevent tear out place a wood spacer cut to the same dimensions as the rabbet for back up support behind the top edge of the side piece E BOX FINGER JOINT When cutting the box finger joint both pieces of stock must be put into the dovetail machine vertically as in Figure 6 One piece of stock...

Page 16: ...e pins are exposed Refer to the procedure described above for fence adjustment Figure 13 shows excessive fit C INCOMPLETE FIT An incomplete fit occurs when the side piece protrudes from the end of the front or back piece See Figure 14 Cause The distance between the edge of the side piece and fence is set too narrow Remedy Adjust the fence toward the back of the jig by the same amount that the tail...

Page 17: ...ease the protrusion of the router bit from the base 2 If the fit is too loose increase the protrusion of the router bit from the base E UNEVEN FIT If the side piece fits either excessively or protrudes at on edge and not the other the fit is uneven See Figure 16 Cause The fence is not parallel to the edge of the work piece or the template is not parallel to the edge of the work piece Remedy Adjust...

Page 18: ...18 CT052 Dovetail Jig Parts Breakdown ...

Page 19: ...19 CT052 Dovetail Jig Parts List ...

Page 20: ...r handy All returned merchandise will be subject to a minimum charge of 15 for re stocking and handling with the following qualifications Returns must be pre authorized by us in writing We do not accept collect shipments Items returned for warranty purposes must be insured and shipped pre paid to the nearest warehouse Returns must be accompanied with a copy of your original invoice as proof of pur...

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