Head Saw Alignment
From contributor A:
Most of the time the one that is straight up and down is called a LineBar resaw. It is for splitting cants most of the time. The tilted one is for cutting logs or "break down" and the slant is so the board or slab will fall off to a conveyor, but not so much slope it will break off too soon. So does the jr head saw cut cants or small logs?
From Professor Gene Wengert, forum technical advisor:
The up and down one is often called a vertical band saw. It is by far the most common band saw configuration for band sawmill headrigs.
For resaws, we see both vertical and horizontal band saws. A line bar is a specialized vertical band resaw. I do not recall seeing a tilted carriage except for head rigs. We also see resaws that have a bunch of short band saw blades fastened together in a frame and the frame moves up and down a short distance; this is called a frame saw or sash-gang saw.
From the original questioner:
We use the jr head saw for smaller, straighter logs. Its main purpose is to lessen the demand on our main head rig when the resaw is pounding right through the lumber. The whole gravity thing makes a lot of sense to me, especially when you get one that's too big to dog on the jr carriage (scary!).
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