Reply by MrUnix

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Posted on Saw struggles to cut 8/4 hard maple. Normal?

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7478 posts in 2709 days

#1 posted 09-15-2016 09:36 PM

Couple of points -

As long as the circuit supplying power to the saw is sufficient (amperage and wire size), switching from 120v to 240v will not get you much, if any improvement. It will not make the motor any more powerful, run cooler, prolong it’s life, or any of the other myths you hear. However, if you are on an underpowered circuit shared with other devices, as this situation seems to suggest, then moving to a dedicated circuit will help – be it 120v or 240v.

Secondly, a 50T combo blade is not an ideal choice for trying to rip stock, particularly thicker hardwoods. Freud recommends that only 3 to 4 teeth engage the stock when ripping (and 5 to 7 when crosscutting). This can be accomplished by using a blade with fewer teeth, or raising the blade so there are less teeth engaging. The later might not be possible depending on the thickness of the stock and the number of teeth on the blade. Here is some info from Freud:

• The sawblade’s projection (t) with respect to the work piece must be greater than the height of the blade’s tooth (fig. 18). Increase or decrease the projection of the saw blade to improve finish quality.

• The number of teeth cutting the wood simultaneously must be between 3 or 4 for ripping and ideally 5 to 7 for crosscutting. With less than 3 teeth cutting the sawblade begins to vibrate leading to an uneven cut. If you want to cut work pieces with increased thicknesses (T-fig.21), but wish to maintain the same diameter saw blade, then use a blade with less teeth. If instead you want to cut work pieces with a reduced thickness, but also maintain the same diameter saw blade, then use a blade with more teeth.


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