how do you cut 68 degree angles on a table saw?

Answer 1

The table saw blade will not tilt past 45 degrees, but you do not really have an impossible problem.

If you turn your piece 90 degrees, you can rip it at 22 degrees.

You may have to tack the board to a 4by4 or something to hold it vertical. Then slide the combined boards along the fence.

Test the angle by cutting off a piece of scrap lumber and compare the test-cut to your project. Measuring the saw blade with a protractor or using the table's scale are inherently inaccurate. Use those methods to get close enough. Test-cut to get it tight.

Answer 2

Combine the good ideas from the previous answers and you should be able to do it. Turn the piece 90 degrees so you can cut at 22 degrees instead of 68. You may need a protractor to make the measurement if your saw guide doesn't have one. Nailing the board to a "slider" piece at the angle you need might be required, depending upon your saw setup. Good luck!

Answer 3

You can get an adjustable one of those slide pieces. Sorry I can't think of the name for some reason. I worked in some wood shops when I was younger but I'm a little rusty. You know- the thing that rides in the groove in the surface of the table when making crosscuts. If you don't want to buy an adjustable one just make yourself a wedge of the appropriate angle and use the regular 90 degree slider. Be careful.

Answer 4

68 degrees is not one of the special angles that you can generate with certain triangles, you'd have to measure it.

Easy angles to get without measuring:

90, 45, 30, 60.

Because these come from right triangles, isoceles, 3-4-5 triangles

a 3-4-5 right triangle has legs 3,4 and a hypothenuse of 5.

Answer 5

1

Answer 6

Just about the same as cutting 70 degrees.

Answer 7

Verticle - use a protractor for blade tilt.
Horizontal - probably easier to lay down a pencil guide first.

Answer 8

The same way that porcupines copulate: very carefully ☺


Doug

Answer 9

Use a protractor.