Mother's Cordwood Cutoff Saw

(Page 3 of 3)

May/June 1982
By the Mother Earth News editors 
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We've found that the minimum size chain saw for effective use with our cutoff table is about 2.5 cubic inches . . . and the tool should have at least a 16 "-long bar. (In fact, we prefer to use a saw of between 3.5 and 5 cubic inches with a 20 "-long bar.) You should, of course, observe all the standard rules of chain-saw safety while operating the cutoff unit.

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And, of course, no matter what size the saw or what use it's put to, kickback is the primary hazard facing the user. Because this situation usually occurs when the tip of the blade contacts an object, the tendency of the chain saw to pull the log against our unit's backboard helps ward off the possibility of kickback. But, as added insurance, we built in a stop to prevent the saw from pivoting beyond about a 45° angle.

Even so, though, we strongly recommend that you use only a saw with a chain brake as part of the cordwood cutoff system . . . for two reasons: First, the brake will stop the chain in the event of kickback. And—equally important—the mechanism can be used to positively lock the chain while you position a log on the tabletop. Without a chain brake, the only safe way to load the cordwood cutoff saw is to shut the motor off while doing so!

Although saving time and being able to control length and squareness are the primary reasons for building our timber lopper, we think you're also likely to find the device useful for sectioning firewood into stove-size pieces or even cutting rough timbers to length for use in post-and-beam construction.

Besides, once the neighbors—many of whom will likely be skeptical when you begin the project—see your completed stackwood wall, there's a good chance that your cordwood cutoff saw will suddenly be in great demand!

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