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Question: How high should a blade be raised when cutting wood on a table saw?
Answer: With very few exceptions, the blade should be raised only high enough to cut the wood because any higher could cause further injury in the event of an accident.
If you are not careful about how you set the blade and readjust your blade correctly every day, then you will undoubtedly see those small errors have huge impacts on the quality of your project. Diminished join strength, incorrect dimensions and parts that don’t fit are all consequences of an incorrect blade height.
In order to adjust your blade correctly, find the middle of the blade, or the Top Dead Center of the blade (TDC). Use a combination square to help you find it and be careful not to sway and keep a steady hand while finding the Top Dead Center.
When you think you are finished adjusting the table saw blade, always use a piece of scrap wood material to test out the depth. Ensure that it is too your requirements and you are good to go for the day!