Rough plane
The roughing or scraping plane is a hand plane for machining wood. It is used for roughing , removing very thick shavings when smoothing rough-sawn, particularly uneven wood for the first time, or to reduce the thickness of a workpiece . The technique of the midget is often used, in which the plane is not guided parallel to the grain, but at an angle to it. In the past, the traces of the roughing plane were usually left on invisible parts (e.g. the back of furniture), since the wood in this form should have less tendency to warp or crack.
With a width of 33 mm according to DIN 5146, the roughing plane iron is narrower than other planes. Since with a large thickness of the removed wood shavings the shavings on the two flanks would be torn out with great effort with a normal, right-angled plane iron, it has a rounded (segment-arc-shaped) cutting edge. This cuts out circular segment-shaped chips that are thin at the edges with less effort.
Individual evidence
- ↑ Wolfgang Nutsch and others: expertise for carpenters (12th edition), published by Europa-Lehrmittel, Wuppertal 1980, page 241, ISBN 3-8085-4011-7
- ↑ Bodo Frahm: BGJ Agricultural Economics . 4th edition, Ulmer, Stuttgart 1980/1991, ISBN 3-8001-1049-0 , graphic on p. 404 on the operation of the roughing plane