Table Saw Blade Sure Isn't Fl;at
Recently I purchased a Wixly Digital gauge. The primary purpose for the gauge was and is to be able to set the blade on my table saw to 90 degrees with the table of the saw. While the gauge works well, it is interesting to note that while I can set the blade so that the gauge reads 90 degrees on one side of the blade, when I move the gauge to the opposite side of the blade there is as much as a full degree of difference in that side. I assume that the reason is that the blade is not flat. The slight error or difference is not a big deal and does not create a problem when alighing the blade with the miter slots with a dial indicator of course. It is just an interesting issue and tells me that setting the table saw blade to an exact 90 degree positon is not technically possible with the digital gauge due to the blade not being flat and therefore there is no honest reference point to use. Even using a machinist square will not work for the same reason. I know that this is real nit picking, but knowing such things and taking them into consideration is part of what precision work is in my opinion.
Where this issue showed up for me was when I was cutting a workpiece that had been laminated together to make a segmented bowl and the workpiece needed to be cut into four pie shaped parts and then glued together so that the final workpiece could be turned on a lathe. The cuts for the pie shaped parts were almost three inches deep and because the blade was not perfectly square with the table, the error showed up when the parts were butted together to be glued up. They were not perfectly square, and that is when I decided to get the digital gauge.
Right now the only way that I can see to get the blade sqaure to make deep cuts by trial and error until the cuts butt up the way I want them to which is not a bad approach, the end result should be perfect, but it will be a excercise in patience I imagine.
So much for my thoughts on that subject.
Colorado City, TX