Laser Guide for DeWalt DWS780 Miter?

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Forum topic by wilschroter posted 08-16-2018 12:28 PM 1189 views 0 times favorited 5 replies Add to Favorites Watch
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141 posts in 1296 days

08-16-2018 12:28 PM

I know the Dewalt Miter Saws have a shadow-style guide by default but I’m curious if anyone has been able to find/apply a sharper laser to it? I’ve seen one made by DW but it was for some older models. I’m looking for something that will work reliably on my DWS780.

5 replies so far

View RobHannon's profile


336 posts in 1301 days

#1 posted 08-16-2018 12:46 PM

While the lasers do have a sharper line, I don’t know that I would say they are more accurate. The lasers must be adjusted and if they are not projected from a fixed point or perpendicular to the center of the blade the line will shift as you move the blade closer to the work piece. Are you not having good results with the XPS shadow line system? I have the same saw and it has been dead on for me right out of the box.

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141 posts in 1296 days

#2 posted 08-16-2018 01:29 PM

Rob that’s a good question that I suppose I dont know the answer to. I’m at a point now where I don’t entirely trust the shadow so just drop the kerf on my cut line but I’m consistently getting bad cuts. Not awful, but not the perfect size you want. Maybe my technique is off somewhere else…

View Rayne's profile


1312 posts in 2310 days

#3 posted 08-16-2018 02:18 PM

Just curious why the shadow is not giving you the perfect cut? I modified my Bosch to create the shadow effect and it’s worked flawlessly. I briefly looked at the saw and the shadow effect and it looks to be the same.

View RobHannon's profile


336 posts in 1301 days

#4 posted 08-16-2018 03:00 PM

This may or may not be your situation, but when I first started using a compound miter I tried to compensate for any wiggle in the arm with a very rigid hold, This was a mistake and I got very inconsistent results and often my 90s were off. I switched to a very light hold and let the machine do the work. Very repeatable for me now.

View Lazyman's profile


5389 posts in 2158 days

#5 posted 08-16-2018 05:58 PM

Anyone have any experience with one of these laser guides that mount on the arbor? Bosch also makes one for quite a bit more $. I assume that instead of marking where the blade will cut it would make the line you want to keep?

-- Nathan, TX -- Hire the lazy man. He may not do as much work but that's because he will find a better way.

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