Originally Posted by
Jonathan Jung
A potential few issues I see from the pictures:
1 blade is toed in / out causing the first pass to result in those circular marks - check blade parallel alignment to track edge
2 blade is dirty, causing overheating and the burning - clean the blade
3 blade is dull, causing overheating and the burning - try a fresh blade
4 you shouldn't have to make so many passes - that saw should be able to handle a near 2" deep cut in hardwood with a proper fresh blade without burning
5 the horizontal lines are likely caused by the blade not set at a dead 90deg to the material - you shouldn't have those lines if the track remains in the same position between passes