Table Saw: Bad cuts
If you have to push the work piece harder through the table saw blade and you see ragged, torn, splintered or burnt grain along the edges where you just cut, you may need to clean, adjust or replace the blade. You may also need to clean the table and use a guide to achieve clean cuts.
First, check the condition of the saw blade for damage or residue. Clean gum or pitch residue off the blade using turpentine and steel wool. Replace the saw blade if it's worn or damaged.
Check blade alignment because the blade won't make accurate cuts if it's not parallel with the miter gauge groove. If blade alignment is off, use a combination square to accurately adjust the blade so it's parallel with the miter gauge groove.
Use the right type of saw blade to cleanly cut the work piece.
Clean gum or pitch off the table so the work piece feeds smoothly through the cutting blade area when making cuts.
Use the rip fence or miter gauge to guide your work piece through the saw blade for uniform cuts.
Adjust the table saw blade
The table saw blade won't make perfect cuts if it's not parallel with the miter gauge groove. Check the blade alignment using a combination square and adjust the blade to parallel with the miter gauge groove.
Replace the table saw blade
The table saw blade becomes dull with use. Cutting hard wood or metal dulls the blade faster. The blade is dull when you must apply significantly more than normal force to push the piece you're cutting through the blade.
Worn motor brushes can make the table saw motor run weak. Here’s how to replace them.
If the table saw isn’t cutting parallel to the miter gauge groove, adjust the cutting blade following the instructions in this repair guide.
Learn how to make basic cuts using a table saw.
Learn some of the basic rules for safely operating a table saw.