Reply by davidpettinger

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Posted on Old Radial Arm Saw

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661 posts in 3437 days

#1 posted 09-28-2009 12:16 AM

I have an RAS in my shop and I love it. Ripping plywood though, not a healthy idea. I mainly use it with a dado blade for making lap joints and for crosscutting wider stock that my CMS can’t handle. Now that being said, You really need to carefully go through all the measuring details and adjust the saw properly. If the Head is not square to the Arm your cuts will be off. If the Arm is not square(90 degrees) to the Fence, you will suffer run out. The wider the board the worse the run out. The adjustments aren’t hard, but you sound like you have the patience to do it right. Generally, Look into replacing the wood fence at the back of the RAS table. If your saw has sat for a while this little piece of wood can be come warped. If the fence is not square you won’t be able tp properly adjust the saw. I replace mine every 2 years, just because it gets beat up and sliced through in so many places.Also, invest in some of the plastic drafting triangles. You can quickly check run out and square to the blade. I also use a drywall square to check the trueness of the fence over its length. I make my fences out of white oak or ash, then wax the front side with bees wax to promote slippage.

-- Methods are many,Principles are few.Methods change often,Principles never do.

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