How to Make Acute Cuts With a Miter Saw

One way to cut an angle beyond the capability of your compound miter saw is to use a 90-degree jig. Here’s how to make one.

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[jsjioqk]

Thank you. Made the jig in a couple of minutes and worked perfect.

[lisamoore]

You made this extremely simplistic! Thank you

[kevinrusso]

Well done, I am a carpenter and had to make tricky cuts like those I did it differently it worked but it was a lot scarier, thank you for posting

[markc]

I’m just finished a project and haunted by images now of me holding pieces at odd angles away from the fence. trying to keep the timber from pinching the blade.
It’s a learning day today. Thank you.

[KOTR]

The 45 degree cut seems unnecessary. You are just creating a new fence parallel to the blade. *shrug *

[lisamoore]

Most beautiful thing I’ve ever seen! ❤❤❤

[jayejaycurry]

Exactly! A 90° fence instead of a 45° one without a lot of unnecessary math.

[EyeOnTheTV]

So the tip would be to rotate the workpiece 90 degrees in the saw . In that case, is that 45 degree cut really necessary?

[AlexandraCimino]

Haha I use my empire speed square, dewalt trigger clamp to the fence, fits perfectly. You’ll notice the back corner of your square is mitered perfectly to clear the blade-almost as if it was designed to do this🤷🏼‍♂️🤣😎

[ironhorse]

Great video very informative and simple

[glenschmeisser]

the only thing missing is an extension to balance long boards so it doesn't move.

[Markw]

You dont need the 45 degree angle, , just need the ability to clamp jig parallel to the blade?

[carolinadesign]

Great logic. Thanks for the problem solver

[corujariousa]

And why didn't I think about that? Thanks for the video!

[ryanern]

Mine is similar but the piece of 1x is screwed to the long edge of the 2x10 and the 45 degree miter on the 2x faces the blade.. So the starting point of the cut is 45 degrees when placed against the jig and every degree the saw pivots toward the workpiece adds a degree >45. I usually only use it with profiled moldings as with flat stock I find it easier to clamp a guide block and cut by hand with a pull saw.

That being said I may switch to this version as it's probably easier to hold the workpiece secure when the jig is 90 to the saw fence vs 45.

[fishing_with_chaz]

I always just freehanded mine when I needed to cut 65 degrees or so this idea is pretty simple I'll have to try it looks safer than my method

[thomassciurba]

Works OK on ends of boards but not in the middle. Really should be clamped since the vertex of the acute angle on the workpiece is not supported by the fence. Also for small pieces your hand may be close to the blade.

[cw]

I honestly don't see the point in cutting the first piece at a 45 degree angle either? Why not just use a square piece of scrap lumber and use your pressure clamps?

[cw]

What is the point of the second piece of wood? Why not just use the first piece without the second?

[marvinostman]

If the comments about just adding a 45 degree fence are all that these people can take away from this video should not be allowed around anything with moving parts.