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Joined: Sep 2006
Location: South Alabama
I do this kind of thing a lot. I do agree that, unless the log is small and very straight, it's a bad idea to try to saw up a whole log on the bandsaw. I've developed a method through a lot of trial-and-error, and I've ended up with some pretty nice lumber--after a LOT of work. Here's my usual routine.
1. Buck the log to length, no longer than your bandsaw's outfeed table. Split the log, at least in half. If all goes well, the split side will be nearly flat enough to lay on the bandsaw table so I can saw up the log. With a bigger log, I'll split it into quarters or even eighths. The more you can do with wedges and a sledge hammer, the better. I have been known to resaw a log with the chainsaw, especially if it's being resistant to splitting. Secure the log upright (so as to keep the chain out of the dirt) and go SLOWLY. When you get a good way through it, you can flip the log and go from the other side. Because this method is inherently dangerous, it's always a last resort for me.
2. Remove the bark and pith, and (depending on the species) maybe the sapwood. A froe, hewing hatchet, or drawknife is handy here. The more work you do with your coarse tools, the less work you'll have to do on the bandsaw. Be sure to cut/split the workpieces down enough that they will fit into your bandsaw. There's nothing quite like getting to the end of a cut only to find out that the very end of your workpiece is 1/8" too high to fit through the bandsaw. At this point, you may want to cut some of the pieces to shorter lengths as well, especially if you reveal big knots in the middle. I find that 4' is about as long as I can manage.
3. Now it's time for the bandsaw. Two things are essential here: a. the coarsest, widest blade you can put on the saw (hook tooth, low TPI, lots of set, and of course SHARP), and b. a solid outfeed table. Do not try this without outfeed support! And make sure your bandsaw won't move when you bump it. If you're feeding a 40 lb. chunk of wood through it, you don't want it rolling around on you. Examine each piece carefully to see which is the flattest side, and how you can cut it for the best results. (Because you've split the log, this method strongly lends itself to quarter-sawing.) You will probably need to do a little work with a drawknife and/or hatchet to make the reference face flat enough. It needn't be perfectly flat, but it shouldn't rock on the table. Use a square and a pencil to mark out your first cut on each end of the workpiece. Then connect them with a chalkline. (The chalkline is invaluable here!) As you saw, keep the feed slow and steady. After a few inches, if the blade binds, you may have to drive a small wooden wedge into the kerf to keep it open. You do NOT want to pinch the blade in a big, wet, heavy workpiece. (Trust me on this one....) Once you've made your first cut, you have a few options. You can keep the workpiece in the same orientation, or you can rotate it, using the freshly-sawn face as the new workpiece. You can also flip it end-to-end. I plan out one cut at a time, depending on the grain pattern I reveal with each cut.
4. Sticker and stack your wood. Since you're probably working with short pieces here, I recommend that you seal the ends with wax so as to avoid checking.
In your case, you already have a log to start with, and I've found that black walnut is a very nice wood to mill up yourself like this. If you get into the habit of scavenging logs to mill up yourself, however, it is best to be picky about your stock. If it's very twisted or knotty, it's not worth messing with. And I don't bother with wood species that I can easily get commercially, either. This process, while rewarding, is a lot of work. Save it for really special logs--species that aren't available commercially, or logs from trees that had sentimental value.
Steve S.
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Tradition cannot be inherited, and if you want it you must obtain it by great labour.
- T. S. Eliot
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