Join Date: Mar 2018
Location: Huntington Beach, California
If you are building kitchen cabinets or furniture for inside the house or heirlooms, most lasers on miter saws are border line useless. If you are using your miter saw in construction, the laser may be of limited value.
As an alternative to the laser let me offer a suggestion.
First understand your saw blade. Almost all blades used in miter saws have some ATB or Alternating Top Bevel teeth. All saw blades have to have something called, set. Set is just a fancy name for saying that the teeth protrude past the width of the blade disk. If there were no set of the teeth, the blade wouldn't cut very well if at all. Typically the set is about 0.016 inch or 1/64. The exact measurement of the set is unimportant but knowing that it is there is important.
OK, Enough about saw blades. When precision cutting with a miter saw, draw a fine line where the cut is to be. I personally prefer using a Pentel 0.5 MM pencil with HB lead. Put the wood on the miter saw, assuming that the right side is the off fall. So left hand on the wood, right hand on the control handle but don't turn the saw on. Bring the saw blade down and align the line on the wood with a tooth of the saw blade. You will note that every other tooth is protruding to the left. Use one of the left protruding teeth and decide do you want to leave the line or take the line in the cut. When the cut is aligned to your liking raise the miter saw, start the blade spinning and make your cut.
BTW - When blade mounted lasers first came out, I bought one for my DW708. ($70) I used it for about a month and then put in the drawer. A couple of years later I gave it away to a friend. Gratis.
In furniture 1/32" is a Grand Canyon