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  • The other saw that you might use is a circular saw. And, of course, the circular saw excels

  • at doing straight cuts. So you've got your curve cuts on your jigsaw, straight cuts on

  • your circular saw.

  • This is a radial saw, just like a table saw or a chop saw. The blade's spinning around,

  • coming up through the material and cutting up, just like the jigsaw is. So you have to

  • be aware of tearout on the top of your wood. And that's one of the issues with these saws,

  • if when you're cutting materials like plywood that have veneer on them, you will get tearout

  • on the topside if you don't have a very fine blade on here.

  • So if you care about that, put a good blade on it. A blade should always be sharp anyway,

  • but put a fine finished blade on there if that's what you're working with.

  • Okay. To use one of these tools, it's very simple. It does require some setup though.

  • In general, you don't want a freehand with this tool. It's too easy to get this tool

  • caught in it's own path, and it binds the blade. So what I'm talking about here is if

  • you start a cut, and you're halfway through, you're in a slot in the wood.

  • If you accidentally lose control of this a little bit and turn sideways, the blade will

  • bind in the slot that you've already cut, lock up the blade, and this can actually catch

  • the wood and kick back at you. So it's very dangerous. It can be a very dangerous tool

  • if you don't do the proper setup with it.

  • So one thing you always do with the circular saw is set up a guide rail. And a guide rail

  • can be just a piece of wood that has a straight edge on it, to line up against the fence on

  • the saw. And that just makes it, it makes it so that the saw will always go in a straight

  • line, and it can't veer off it.

  • You will have different amounts of blade exposed. You don't want to have this whole blade exposed

  • if you're only cutting through a half-inch piece of material, for example. So back here

  • in the back, and most of these saws are like this, you'll want to unlock the lower fence,

  • and this moves up and down to only expose enough, the amount of blade that you need.

  • So figure out what the thickness of your material is. For example if we're cutting this piece

  • of wood here, I can just set this on top and let it rest on there. And what I want to do

  • is just let it go a little bit past the bottom edge of what I'm cutting, and I'll lock it

  • in at that point.

  • The other adjustment you may or may not need to do is the angle. And on the front here,

  • you can see there's a lock to adjust the fence, so the saw can tilt all the way over. So it's

  • good if you need to create an angle.

  • Now all of these types of cuts are better done on a table saw. Most of the cuts that

  • you do on the jigsaw are generally done better on the band saw. But if you don't have the

  • equipment and this is all you have, you can get the job done with these tools.

The other saw that you might use is a circular saw. And, of course, the circular saw excels

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B1 中級

丸鋸の使い方|木工 (How to Use a Circular Saw | Woodworking)

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    文鳴 に公開 2021 年 01 月 14 日
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