Has anyone come up with a good method of sawing quarter-sawn lumber with close to 90 degree grain on a bandmill? I’ve been using the two commonly described methods for sawing quarter-sawn lumber, and not really been satisfied with the results. The first few boards from the center of the log yield lumber with very close to 90 degree grain and good ray fleck pattern but as I go further and further from the center the grain becomes less and less vertical, and the final narrow boards are actually rift sawn rather than quarter-sawn. What I’m thinking would yield the highest quality would be to first quarter the log, take one board from each face of the quartered sections. then somehow “rotate” the quartered section so as make radial (or very close to radial) cuts yielding boards which are much like lap siding, thinner near the core of the log and thicker on the bark edge. Then of course the section of each board nearest the core thinner than 4/4 would be trimmed off, as would the bark, and the piece that’s left would then have to be planed to yield the final piece of uniform thickness. Just haven’t figured out how to go about doing this. I realize that this will result in a lot of material being wasted, but the resulting boards should have a much higher percentage of good ray fleck pattern than the normally-described methods for milling quarter-sawn boards. I’ve got a nice straight white oak tree that’s been severely storm-damaged which should yield perhaps three 8-foot logs and I’d like to get as much material with good pattern for Mission-style furniture as possible.
I’ve had it suggested that I use the standard quarter-sawn milling technique but go to 6/4 thickness for all but the first few boards, then cut the final board out of each on a bandsaw, tilting the table to get the 90 degree grain that I’m after. This technique I believe was described some years back in Fine Woodworking. Doing this with short pieces is doable, but working with 8 foot lengths of 6/4 material becomes quite a one-person chore.
The bandmill I’m using, by the way, is a non-hydraulic woodmizer.
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Quarter Sawing
I just had this conversation with my father in law tonight. He had to search around before he found a sawyer who was willing to screw around quarter sawing on a bandmill. You can quarter saw the way you mentioned by sawing the log into quarters, then screwing around to rotate the quarters turning the chunks to quarter saw continuously, but you waste a lot of wood, time, and you break your back in the process. Hence the reason guys who do this charge double for their lumber. Its a lot of screwing around on a bandmill.
Is the quarter sawn lumber really that valuable? Personally I'd rather have some 8" rift sawn boards than some 3" quarter sawn boards. Use the quarter sawn wood where you will see it and use the rest for the back, drawers and other construction parts.
Your best bet is to keep sawing it the way you are. I saw with a Lucas swing blade mill and typically take vertical boards off the top 1/3, horizontal boards in the middle 1/3 (2" thick through the pith area for QS table legs) and vertical boards off the bottom 1/3. While it doesn't yield me completely quarter sawn wood I'm not wasting any of the log. Use the quarter sawn wood where everyone will see it. Use the rest where they wont.
You can easily saw the same on a bandsaw. Thats how my father-in-law did his for flooring.
In case you're wondering: (Sawing2.jpg)
Method "A" produces best quality planks at highest cost and greatest waste.
Method "B" produces high quality planks at lower cost and less waste.
Method "C" costs less with least waste but produces only 1/5 high grade planks.
Method "D" is used to secure large planks and timbers of high quality.
I saw my logs using the QS method opposite the flat sawn image. (Sawing1.jpg)
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