Reply by onestop

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Posted on Kobalt SM2505LW Sliding Miter Saw Alignment Problem

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6 posts in 1388 days

#1 posted 04-03-2015 01:23 PM

OK to answer a couple of questions so far. I changed the blade once from a 120 tooth that I was using to make some fine cuts but got burned up by my contractor when he borrowed the saw and started chopping up 4×4s. So i switched it out to a 60 tooth that’s been used maybe 6 times since.

That being said, I pulled the blade down and used three different squares, even bought the framing square new just to make sure. All three squares agreed the blade is 90 to the fence.

I did indeed do the tracking thing with the teeth pressed down on the blade, Rolled it lightly across my 12” piece just to make the indents for visual. I can watch it wander off the cutline about midway through. When I actually power the saw on and make the cut from front to back it lines up perfectly with my cutline in the front and then wanders off the cutline towards the back by as much as .105.

Interestingly enough when I cut two 1 bys or 2” pieces at 90 and flip them to match end to end…no gap. When I do the same thing at a 45 and flip to line them up…no gap.

It’s only when doing wide cuts front to back or even back to front (as a test) the saw just starts walking the dog and the difference become very noticeable.

EDIT: to add to this I also checked the fence with two different carpenters levels and there appears to be no warp in the fence. I also made sure to clamp my workpiece to the table to make sure it wasn’t accidentally bowing or moving while making the cuts.

This saw is about 1 year old and has been used approximately 10 times to make 20-30 cuts in total thus far.

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