Reply by William Shelley

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Posted on Slow down table saw blade for ripping?

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William Shelley

572 posts in 1470 days

#1 posted 04-20-2017 07:01 PM

I do not see that as wise IMO. Most saws would not work long time at a frq other than enginnered. Why not just use the proper plade and feed of material through that blade.

I think thats undue long term stress.

- bonesbr549

Not true. Most 3ph motors sold in the last … 15 to 20 years or so are more than happy to be driven by a VFD. Exceeding the rated frequency will shorten life, or running the motor at a drastically lower frequency (like 10hz), might also cause some small issues. But 40hz shouldn’t be a problem.

That being said, I think that what pintodeluxe said about blade geometry is what really matters here. The issue isn’t how fast the teeth are moving, it’s that when ripping, there’s a lot more saw dust that is generated and has to go somewhere (the gullets between the teeth). Ripping blades have bigger gullets.

-- Woodworking from an engineer's perspective

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