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Gouge Jig SVD-185
Positioning of Machine
Design
The jig comprises a tool holder (1) which runs in a sleeve (2). The tool is aligned with a disc
(4) and tightened with a knob screw (5). There is a washer (6) for wide gouges. The stop ring
(7) can be set for a convex bevel with a screw (8).
The tool holder can be set in any position from 0 to 6 with the 5 mm Allen key (9). The setting
can be noted on a special profile label (10), which is attached to the ferrule. A special pen,
which works on these labels is included (11). For turning cutters there is a shaft (12) with a
mounting screw (13) and a 2,5 mm Allen key (14).
Grinding direction:
Away from the edge.
TURNING TOOLS
Bowl gouges
Spindle gouges
Turning cutters
CARVING TOOLS
Curved gouges
Spoon-shaped gouges
Back bent gouges
Down bent gouges
Curved V-tools
Max tool width 25 mm (1").
75
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Summary of Contents for tormek SVD-185
- Page 1 Gouge Jig SVD-185 TURNING TOOLS Bowl gouges Spindle gouges Turning cutters CARVING TOOLS Curved gouges Spoon-shaped gouges Back bent gouges Down bent gouges Curved V-tools Max tool width 25 mm (1"). Positioning of Machine Grinding direction: Away from the edge.
- Page 2 Turning Gouges and Carving Tools You can grind turning gouges with the so called fingernail shape as well as carving gouges with various shapes. You can also grind straight and curved V-tools. The jig causes the tool to move towards the grindstone in a special way, according to the set- ting selected from 0 to 6.
- Page 3 Turning Gouges Shaping The jig positions the gouge on the grindstone so that you can get a specific and repeatable grinding at any point along the bevel. This enables you to get an even, single bevel around the entire profile from the left to the right wing. These three factors determine the geometry of a gouge The setting of the jig, JS.
- Page 4 Hole B For professional level turners. Flat Oval to another. Then you will get the full benefit of the Tormek TTS-100 Setter, since you can instantly replicate exactly the same shape every time. Should Radius edges 30° For broad application.
- Page 5 Shaping You can do the initial shaping either directly on your Tormek or, if a lot of steel needs to be removed, on a bench grinder using the Tormek Bench Grinder Mounting Set BGM-100 (page 29). When shaping on the Tormek, contrary to a high speed bench grinder, you need to apply a high grinding pressure.
- Page 6 Length of the Wings The length of the wings depends on how wide you swing the tool from side to side. Limited swing. Full swing. Shape of the Wings Watch that you grind on the right spots on the bevel so the wings become sym- metrical and slightly convex or straight.
- Page 7 Once you have created the shape of the edge, it is an easy task to quickly re-sharpen the tool. The sharpening should be done on your Tormek machine for the best finish and to ensure that the edge is not overheated. Make the three settings noted on the Profile Label carefully and you will obtain exactly the same shape every time even when the stone wears and decreases in diameter.
- Page 8 Other Shapes You can of course shape your gouge to a different geometry from those provided with the TTS-100 Setter. This graph shows examples of shapes which you can achieve on a bowl gouge at various jig settings and edge angles. In each example, the protrusion of the tool in the jig (P) is 65 mm (2½").
- Page 9 Turning Cutters There are various types and sizes of exchangeable cutters for hollowing and scraping. The holes vary from 4–8 mm (5/32–5/16"), but due to a shoulder on the shaft they can all be mounted with the same screw. The cutters can be sharpened to their existing shape or to a new shape.
- Page 10 Setting the edge angle Colour the bevel with a marker. Set the universal support so At the right setting the stone that the grindstone touches the entire length of the bevel when removes the colouring along rotating it by hand. the whole length of the bevel. Sharpening Rotate the jig all the time during the sharpening so you achieve an Smooth the back on the...
- Page 11 Shape the edge by resting the The edge plane angle (γ) should Flatten and smooth the blunted tool on the Universal Support be approx. 20° (page 21). edge with the fine side of the placed horizontally and close to Tormek Stone Grader, SP-650. the stone.
- Page 12 Line of light Now you have a line of light, When cutting steep bowls using which is your guide as to where a curved or a down bent gouge, to grind. the edge plane angle can be decreased. Here it is 0°. Setting the jig Mount the gouge in the jig Put the jig on the Universal...
- Page 13 Grinding Line of light Always grind where the line of Check frequently where the Grade the grindstone for fine light is the thickest while swing- grinding takes place. Grind until sharpening with the fine side ing the tool. you get an even and thin line of the Stone Grader SP-650.
- Page 14 It is very easy to over-sharpen the edge at the end of the sharpen- ing. If this happens, you need to reshape the edge and start again from the beginning. Honing Keep the tool in the jig and Hone and polish the bevel. Set the Universal Support so that the hone and polish the inside on honing angle is the same as the grinding angle.
- Page 15 Back Bent and Down Bent Gouges A back bent gouge is ground You can also grind a down bent with the jig setting 0. gouge. The jig is set as shown on page 86. Documentation of the Shape The shape of the gouge is determined by the jig setting (JS) and the protrusion (P). Note these settings on the profile label, which comes with the jig.
- Page 16 Universal Support posi- be approx. 20° (page 21). edge with the fine side of the tioned horizontally. Tormek Stone Grader, SP-650. The blunt edge appears as a line of light, which is your Line of light guide as to where to grind.
- Page 17 Setting the jig Mount the tool in the jig pro- Turn the jig so one wing lies flat Now the jig is set to suit the truding approx. 100 mm (4"). on the grindstone. Set the jig so shape of the tool, the edge The stop ring (4) must be locked that the edge is approximately angle will be uniform.
- Page 18 Grind until you get an even and Now grind the other wing in the Then grind the keel. Turn thin line of light. same way. the tool from side to side to equalise the grinding towards the wings. Grade the grindstone for fine Continue sharpening one wing Remove the burr on the leather sharpening with the fine side...
- Page 19 Honing Keep the tool in the jig and Hone and polish the bevels. Set the Universal Support so that the hone and polish the inside on honing angle is the same as the grinding angle. Use the Marker the Profiled Leather Honing Method.
- Page 20 Uneven thickness of the steel Uneven thickness Even thickness If the steel thickness varies, the length of the bevel will also vary despite the fact that the edge angle is the same. This has no influence on the function of the tool, as it depends on the edge angle.
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