I have a brand new skil 12" double bevel compound miter saw. The fence is aligned properly - It creates a perfect 90% angle with the blade when set to 0 degrees. however, if I set it to 45 degrees on either side, it is actually cutting 44 degrees, meaning I have to set it to ~46 degrees to get a perfect 45 degree cut.
This is the first miter saw I have purchased, and I would think that for most projects this small of error would not really matter, but in this case I am making a large picture frame so having the sum of corners be 360 degrees is necessary.
Are miter saws expected to make cuts to accuracy of less than a single degree? Is there some other variable that I have failed to consider that may be affecting this?