By Will Malloff
В книге описано несколько приспособлений для бензопилы, позволяющих разделать дерево на доски прямо на лесопилке, делать криволинейные резы, резы под углом. Технология очень хорошо иллюстрирована (картинки, к сожалению, черно-белые).Один только минус - книга на английском языке. Но в ней столько поясняющих картинок, что можно разобраться в технологии и без знания языка.
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Additional resources for Chainsaw Lumbermaking
To modify the sawbar to accept the mill, measure the distance between the centers of the Ih-in. holes in the riser posts with mill height set to 3 in. Mark and center-punch the bar for two corresponding holes. 40 CHAPTER 4 The Mill On the engine end of the bar, mark and centerpunch two 5/16-in. holes, each at a distance of % in. from the center of the Ih-in. hole. Drill the bar holes at very low speed with a good-quality, high-speed drill or a carbidetipped masonry drill. Be sure to have an old bar or a piece of flats tack iron under the bar to drill into (3).
Drill the bar holes at very low speed with a good-quality, high-speed drill or a carbidetipped masonry drill. Be sure to have an old bar or a piece of flats tack iron under the bar to drill into (3). This is the secret to drilling bars. If you drill into the hole in the drillpress bed or into a wooden support block (as is normal metalworking procedure), the drill would just start through the bar and the unfinished hole would harden because of the airhardening qualities of bar steel. You'd end up with an unfinished, hardened hole and a burntout or broken drill bit.
I therefore find it necessary to use an additional thrust skid (4) that is much longer than the standard skid. -square steel tube if available, but angle iron will also do quite well. Heat the end of the tube and bend it while holding it in a vise. Hacksaw a slightly curved line for the nose and another line for the shoe. Remove the wedge of metal between the lines and pound the shoe up around the nose. Trim off the excess and weld or braze the nose and shoe together. Drill two %-in. holes in the new skid to align with the holes in the standard skid, and attach it to the mill.
Chainsaw Lumbermaking by Will Malloff