Miter saw help, please. I’m stumped. My Delta 36-225 10” compound (non-sliding) miter saw, equipped with sharp Freud LU85 is producing 90-dgree cuts that are crowned. What I’m calling a crown amounts to a cut that curves ever-so slightly outwards from the edge closest to the fence, reversing its direction near the center of the width of a 5-inch crosscut, i.e., convex. The cut at the edge closest to me (away from the fence) appears to be perpendicular with the cut on the fence edge. However the cut, with its protruding crown is far from straight / flat. Additional conditions include:
I have tuned all available adjustments to the very best of my ability, using reliable, accurate squares and a dial indicator. The blade is square (vertically) to the table. The fences are aligned with each other and together are square to blade plate.
I cleaned the blade of all pitch. Cuts are acceptably square to their faces. A dial indicator on the blade plate suggests an out-of-flat condition of approximately 0.002”. The arbor configuration, combined with my skill and tools did not allow me to measure the arbor for run out.
A Delta tech rep diagnosed the problem as blade heeling, but could not offer a means of correcting it, so I didn’t put full faith in his opinion.
The outer blade thrust washer appears to have lost its grip at some point, leaving a circular scratch pattern on it and on the blade plate. I do not recall a particular violent situation that would have jerked the blade free from the washer’s grip. Unfortunately, I cannot pinpoint when that slippage occurred and with that, I cannot conclusively tie it and/or the now marred washer and blade to this problem.
That’s the best explanation I can offer. Any thoughts and/or advice will be greatly appreciated. Is there a special adjustment of some sort? Do I need a new blade, a new thrust washer, a new saw? Do I need to abandon woodworking?
I have tuned all available adjustments to the very best of my ability, using reliable, accurate squares and a dial indicator. The blade is square (vertically) to the table. The fences are aligned with each other and together are square to blade plate.
I cleaned the blade of all pitch. Cuts are acceptably square to their faces. A dial indicator on the blade plate suggests an out-of-flat condition of approximately 0.002”. The arbor configuration, combined with my skill and tools did not allow me to measure the arbor for run out.
A Delta tech rep diagnosed the problem as blade heeling, but could not offer a means of correcting it, so I didn’t put full faith in his opinion.
The outer blade thrust washer appears to have lost its grip at some point, leaving a circular scratch pattern on it and on the blade plate. I do not recall a particular violent situation that would have jerked the blade free from the washer’s grip. Unfortunately, I cannot pinpoint when that slippage occurred and with that, I cannot conclusively tie it and/or the now marred washer and blade to this problem.
That’s the best explanation I can offer. Any thoughts and/or advice will be greatly appreciated. Is there a special adjustment of some sort? Do I need a new blade, a new thrust washer, a new saw? Do I need to abandon woodworking?
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