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Directions for use and tips on
Juuma Bench Planes #4, 5, 6 and 7
Dieter Schmid Werkzeuge GmbH
www.feinewerkzeuge.de
Wilhelm-von-Siemens-Str. 23
12277 Berlin
Germany
Text and Illustrations: Friedrich Kollenrott
This document, (Text and Illustrations) is owned by Dieter Schmid Werkzeuge GmbH. It cannot be used or
distributed in whole or in part, in its original or a modified form, without the express, written, consent of
Dieter Schmid Werkzeuge, GmbH.
P.1
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Summary of Contents for Dieter Schmid Juuma 4
- Page 1 Text and Illustrations: Friedrich Kollenrott This document, (Text and Illustrations) is owned by Dieter Schmid Werkzeuge GmbH. It cannot be used or distributed in whole or in part, in its original or a modified form, without the express, written, consent of...
- Page 2 The iron is fixed to the “frog”, the wedge-shaped brass part, which holds it firmly at a 45° angle to the sole with the edge projecting slightly through a wide slot in the sole, the mouth, which allows the shavings to pass out of the plane. Juuma Bench Planes Dieter Schmid Werkzeuge GmbH, Berlin – www.fine-tools.com P. 2...
- Page 3 The plane glides on its sole in direction v over the wood. The iron’s edge, bedded on the frog, sticks out a tiny bit below the sole and cuts a shaving which is as wide as the iron. This shaving slides up through the Juuma Bench Planes Dieter Schmid Werkzeuge GmbH, Berlin – www.fine-tools.com P. 3...
- Page 4 For the plane to function properly, four things must be set: first the force with which the iron is clamped against the frog, then the shaving thickness and its uniformity across the cut, and finally the relatively difficult ratios involved in the width of the plane mouth. Juuma Bench Planes Dieter Schmid Werkzeuge GmbH, Berlin – www.fine-tools.com P. 4...
- Page 5 If the tension is too high, and one tries to adjust the position of the iron, then something can easily break. So be careful! In almost all cases, if the adjustments are hard to make with the knobs, screws and levers, then the tension needs to be reduced. Juuma Bench Planes Dieter Schmid Werkzeuge GmbH, Berlin – www.fine-tools.com P. 5...
- Page 6 (shaving thickness). Set like that, the iron is not held in position only by the friction between it and the bed, but is also solidly fixed in place by the angle lever, bearing both on the chip breaker and the knurled nut. Juuma Bench Planes Dieter Schmid Werkzeuge GmbH, Berlin – www.fine-tools.com P. 6...
- Page 7 -- so one should not overdo this setting. There are also people who find a mouth setting that works for them, and never change it. Juuma Bench Planes Dieter Schmid Werkzeuge GmbH, Berlin – www.fine-tools.com P. 7...
- Page 8 By loosening the machine screws the position of the frog can be changed. ► The frog is clamped by turning the two machine screws clockwise (right) and loosened by turning the screws counterclockwise. Juuma Bench Planes Dieter Schmid Werkzeuge GmbH, Berlin – www.fine-tools.com P. 8...
- Page 9 The lever cap is then installed, slotting the tensioning screw into the “keyhole” in the cap and sliding it down as far as it will go. Juuma Bench Planes Dieter Schmid Werkzeuge GmbH, Berlin – www.fine-tools.com P. 9...
- Page 10 (by turning the thumbscrew) and adjusting the angle of the iron (by using the lateral adjust- ment lever). Juuma Bench Planes Dieter Schmid Werkzeuge GmbH, Berlin – www.fine-tools.com P. 10...
- Page 11 This modification is easy to make when grinding a new bevel or even just by honing a steeper micro-bevel at the edge to the desired angle. Juuma Bench Planes Dieter Schmid Werkzeuge GmbH, Berlin – www.fine-tools.com P. 11...
- Page 12 240 grit, or even a little bit finer than that. After you have finished resurfacing the sole, everything must be carefully rinsed to remove any traces of the abrasive, then carefully dried and finally lubricated and given a coating of oil to protect from rust. Juuma Bench Planes Dieter Schmid Werkzeuge GmbH, Berlin – www.fine-tools.com P. 12...
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