How to Cut Aluminum Angle in Miter Saw

[Giles]

I hate to be "different" but I see things a little different.
If I was doing that job, I would set bar as in photo #2.
But I would clamp to fence with c clamps on both sides.
In most instances cutting the narrow thickness is better and safer.
Less heat and stress on machine.
However, cutting flat will give straighter cut.

 

[cg285]

The attached pictures indicates the 3 possible positions of an aluminum angle to be cut with a miter saw. Which one is the safest?

not only is "#3" the safest it is the correct way. the other two could get interesting

 

[cg285]

i would have made 6 cuts in the time this guy made one but it shows how it is done