Bosch Power Tools 4100DG manual Work Helpers, Push Stick and Push Block, Auxiliary Fence

Work Helpers

Before cutting any wood on your saw, study all of the “Basic Saw Operations”.

Notice that in order to make some of the cuts, it is necessary to use certain devices, “Work Helpers”, like the Push Stick, the Push Block and the Auxiliary Fence, which you can make yourself.

After you have made a few practice cuts, make these “helpers” before starting any projects. Make the “Push Stick” first.

Push Stick and Push Block

Make the Push Stick 1 using a piece of 1 x 2 as shown (Fig. 50).

Make the Push Block 2 using pieces of 3/8” plywood 3 and 3/4" hardwood 4 (Fig. 51). For proper use of push block (see page 52).

The small piece of wood, 3/8” x 3/8” x 2-1/2”, should be GLUED to the plywood… DO NOT USE NAILS. This is to prevent dulling the sawblade in the event you mistakenly cut into the Push Block.

Position the handle in the center of the plywood and fasten together with glue and woodscrews.

Use a push stick whenever the fence is 2 inches or more from the blade. Use a push block when the operation is too narrow to allow the use of a push stick. For proper use, see page 74.

Both a push stick or block should be used in the place of the user’s hand to guide the material only between the fence and blade.

When using a push stick or push block, the trailing end of the board must be square. A push stick or block against an uneven end could slip off or push the work away from the fence.

Auxiliary Fence

Make one using pieces of 3/8" plywood 3 and 3/4" hardwood 4. Fasten together with glue and woodscrews (Fig. 52).

NOTE: Since the Push Block 2 is used with the Auxiliary Fence 5, the 4-3/4" dimensions must be held identical on both the pieces.

Making a Featherboard

Figure 53 illustrates dimensions for making a typical featherboard. It should be made from a straight piece of wood that is free of knots or cracks.

Kerf 5 should be about 1/4" apart (fig. 53).

FIG. 50

3/4

1

1-1/2

WORKPIECE

15

45° NOTCH

1/4

1/4

END

1/4

ENCOCHE À

EXTRÉMITÉ

45°

CONTACT AVEC

L’OUVRAGE

MUESCA DE

EXTREMO DE

45°

LA PIEZA DE

TRABAJO

FIG. 51

4-3/4

12

4

5

2

3/8

12

2-1/2

2-1/2

5-1/8

THESE EDGES MUST BE PARALLEL

3/8

3/8

3

CES BORDS DOIVENT ÊTRE PARALLÈLES

ESTOS BORDES DEBEN SER PARALELOS

FIG. 52

3

4

5

2-1/4

4-3/4

THIS FACE AND THIS EDGE

21-1/2

MUST BE PARALLEL

5-1/2

CETTE FACE ET CE BORD DOIVENT

ÊTRE PARALLÈLES

ESTA CARA Y ESTE BORDE DEBEN

ER PARALELOS

8

FIG. 53

25 5

5

4-1/2

3/4

NOTE: All dimensions in inches.

REMARQUE : Toutes les dimensions sont en pouces.

NOTA: Todas las dimensiones están en pulgadas.

62.