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Quarter sawing is a process of sawing logs into boards, a method that produces quartersawn and riftsawn boards. Quartersawn boards have two advantages:
- Their stability against warping with changes in moisture. Shrinkage stills occurs, but is less troublesome.
- The decorative effect, although this depends on the timber species. Quarter sawn oak shows a prominent ray fleck. Quarter sawn sapele is likely to produce a ribbon figure.
To a lesser degree this also applies to riftsawn boards.[citation needed]
Rather than feeding a log into a mill for rift sawn and merely shifting the blade position a little after each board, the whole log must first be quartered (hence the name), then each quarter is sawn separately. The best quarter sawing pattern takes a single slice off each face of the quarter, rotating it between cuts. This is obviously a lengthy process, so a common compromise is to rift saw throughout each quarter, but at 45° to the faces.
Quartersawn boards can also be produced by other methods.
See also
External links
- Quarter-Sawn Lumber and Quartersawing This link offers both an accurate picture of a quarter sawn orientation and the above-described quarter sawing, producing a few quarter-sawn boards, but mostly riftsawn boards.
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