
A miter saw is a wonderful piece of machinery. The ability it has to cut wood at any angle is a boon to do-it-yourselfers when fitting a piece of molding into a tight corner or creating an angled brace. But perhaps something is hindering your ability to cut--leaving the saw's gauge with a limited range of motion. Learn how to get around the problem and cut an obtuse angle.
Step 1

Set your miter saw to cut at an acute angle and it will cut at an obtuse angle by default.
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Step 2
Determine which acute angle complements the obtuse angle.
Step 3

Imagine cutting an obtuse angle of 120 degrees as an example.
Step 4

Note that miter saw gauges don't go to 60.
Step 5

Set your saw at 30 (90 - 30 = 60) to cut at a 60-degree angle.
Tip
Don't bang the saw down onto whatever you are cutting. Doing so could damage the blade. Move it smoothly and steadily to make a clean cut.
Warning
Make sure you are wearing goggles or some other eye protection when using power tools. Always keep your fingers clear of the blade when it is moving.