Sunday, September 20, 2009

Fettling: Making the Shop More Functional

I think beginning woodworkers (and I still consider myself a beginning woodworker) are challenged by all the setup required for the shop to work well. Many tools are sold looking like they are functional, but with serious flaws. And even those that don't have serious flaws need fettling to perform at their potential. These tasks often seem endless.

The router table pictured above came from an estate, complete with router, for about $25. I knew I needed a router table, and I also knew it would be a while before I make the one I have planned. This seemed like a good solution (still does), but the the stock fence, which was designed to look like would allow straight guided cuts as well as small scale jointing, had challenges.

Ryobi is the manufacturer, and the table and fence are made from aluminum. They look like they were cast and machined to be flat, but the fence itself curves significantly. When I placed a straightedge against it, there was a visible deflection of up to 1/8" at the center. Whether I used it with the plastic guide surfaces or without, the fence caused anything that ran over it to stall when it hit the gap, and the act of correcting this problem would put a wrinkle in the line of the routed groove.

I had to fix the router fence before I could route the slots on the cold frame lights. And to do that I needed to finish setting up the jointer (finally). I spent a night last week setting up the jointer, and about an hour and a half this weekend flattening a fence and setting it up to receive the bolts. Two more fettling tasks done. And the router table performed to the tolerances I required (something it would not have done before adding the new face to the fence).

It turns out that the new surface is not actually flat, and some day I may sink the bolts further in and run it over the jointer while it is attached to the fence. Today is not that day.

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