I need to cut a 75 degree angle, but my compound miter saw only go's to 45 degrees?

Question

How does this work. Do I invert and cut the 15 degree... I

Its for a corner brace on the inside corners of a row boat. I used my sliding T bevel, to get the looking down angle, for the corner ( left to right or horizontal angle ) but then there is the angle in the walls of the boat. That slight angle that is up to down or vertical angle as the walls of the boat chamfor.. Thankyou

Answer 1

So you've got the look-down angle and you can cut a piece of scrap to check that that's right, then you scribe top and bottom on your scrap with a 1/2 inch or 1/4 inch inset so you can see what angle you need from top to bottom? This is the 75 degree that you are talking about?

If so then, when you invert (assuming the top and bottom faces are parallel) you still have a 75 degree angled cut don't you? Why not just cut for the look-down, offer it up and scribe then hand-plane?

Answer 2

I suspect that your problem with the saw is that this only happens with larger pieces of wood. By larger I mean wood that is wider than the saw is designed for. There is also the possibility that there is something blocking the full travel of the saw. It might even have a small piece of wood , a chip if you will, stuck under there some where. Relative to finishing the 45 degree cut with a hand saw suggest Theta he simply turn the piece of wood over and move the miter to the 45 degree at the other side of the tool and finish the cut that way. Unfortunately there are some people who answer these questions who pretend that they think they know what it means to be a man, then they start to write and what they really tell us is that in reality they are really just 9 years old and always will be

Answer 3

Since 15 degrees is the complementary angle, use that instead. It will yield the same results if you position your board properly in the saw.

Answer 4

Yes, just flip it over and do the 15 degree cut. It's the same thing.