Bosch GCM12SD Not cutting square (while arm is fully extended)

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Forum topic by Ron90 posted 07-19-2017 01:53 PM 1220 views 0 times favorited 2 replies Add to Favorites Watch
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1 post in 1082 days

07-19-2017 01:53 PM

Topic tags/keywords: miter saw blade square 12

Hey guys I’m having an issue squaring my miter saw. When the saw is pushed all the way to back of the fence i get consistent straight cuts. When the arm is fully extended (towards me) the cut is thrown off 1/4”.

I doubt its the blade since there is no shaking. Current blade is a Diablo 12” 80 tooth

Ive gone over the assembly a few times now but cant seem to find where the issue is.

Closest Bosch service center is over 2 hours away. I will be getting a from a tech by Monday but would like it fixed before then if possible.

Any help would be appreciated!

2 replies so far

View ArtMann's profile


1480 posts in 1586 days

#1 posted 07-19-2017 06:39 PM

I have that same saw and I don’t have that problem. I did have to adjust the for square initially but it has been okay since then. You may very well have a defective saw.

If you adjust for square with the blade extended all the way and then cut a narrow piece, is it off?

View Ronwm's profile


3 posts in 1092 days

#2 posted 07-31-2017 10:00 PM

is there a way to adjust the blade while fully extended? I’ve looked over the instructions but dont see a clear way to do this.

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