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The other saw that you might use is a circular saw. And, of course, the circular saw excels
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at doing straight cuts. So you've got your curve cuts on your jigsaw, straight cuts on
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your circular saw.
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This is a radial saw, just like a table saw or a chop saw. The blade's spinning around,
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coming up through the material and cutting up, just like the jigsaw is. So you have to
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be aware of tearout on the top of your wood. And that's one of the issues with these saws,
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if when you're cutting materials like plywood that have veneer on them, you will get tearout
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on the topside if you don't have a very fine blade on here.
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So if you care about that, put a good blade on it. A blade should always be sharp anyway,
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but put a fine finished blade on there if that's what you're working with.
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Okay. To use one of these tools, it's very simple. It does require some setup though.
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In general, you don't want a freehand with this tool. It's too easy to get this tool
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caught in it's own path, and it binds the blade. So what I'm talking about here is if
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you start a cut, and you're halfway through, you're in a slot in the wood.
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If you accidentally lose control of this a little bit and turn sideways, the blade will
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bind in the slot that you've already cut, lock up the blade, and this can actually catch
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the wood and kick back at you. So it's very dangerous. It can be a very dangerous tool
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if you don't do the proper setup with it.
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So one thing you always do with the circular saw is set up a guide rail. And a guide rail
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can be just a piece of wood that has a straight edge on it, to line up against the fence on
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the saw. And that just makes it, it makes it so that the saw will always go in a straight
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line, and it can't veer off it.
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You will have different amounts of blade exposed. You don't want to have this whole blade exposed
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if you're only cutting through a half-inch piece of material, for example. So back here
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in the back, and most of these saws are like this, you'll want to unlock the lower fence,
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and this moves up and down to only expose enough, the amount of blade that you need.
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So figure out what the thickness of your material is. For example if we're cutting this piece
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of wood here, I can just set this on top and let it rest on there. And what I want to do
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is just let it go a little bit past the bottom edge of what I'm cutting, and I'll lock it
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in at that point.
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The other adjustment you may or may not need to do is the angle. And on the front here,
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you can see there's a lock to adjust the fence, so the saw can tilt all the way over. So it's
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good if you need to create an angle.
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Now all of these types of cuts are better done on a table saw. Most of the cuts that
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you do on the jigsaw are generally done better on the band saw. But if you don't have the
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equipment and this is all you have, you can get the job done with these tools.