Better accuracy from your tablesaw
Know the angles
You'll find the best and least expensive tablesaw accessories at an office supply store, of all places. Invest about $10 in a couple of plastic drafting triangles. They give you perfect 90°, 45°, 60°, and 30° corners for setting blade angles and miter angles as shown in photos.
As shown in photos, set a blade angle, raise the blade fully and register the triangle against the body of the blade, not against the teeth. Raising the blade fully gives you the most surface for the triangle to rest against. Lower the blade to the proper cutting height after setting the angle.
PDF of photos
23 Tablesaw Tips