Pin Routing

The pin Ls a guide device used in router table woodworking. It is positioned in the same axis as the bit. either above or below it. The key is that the guide pin is located on the opposite side of the work from the router. It rubs against a template attached to the work (occasionally, the pin rubs against the work itself), controlling where the bit cuts.

Pin routing can be done with the router above or below the work. That means that you're going to need a sturdy overarm to hold either the router or the pin above the worktable. Mounting the router in an overarm is a lot more chal-lenging than mounting the pin Uiat way. The router itself is the focal point of all the stresses, so an overarm supporting the router has to be incredibly strong and rigid. The pin, on the other hand, is tiny and bears only modest side pressure. Irs position has to be held precisely, but that's relatively easy to do. So in the typical home shop configuration, an overarm pin is a router table accessory. (And in fact, we've got a plan for one in the chapter "Router Table Accessories.")

A big advantage of pin routing is the fact that you can move the workpiecc around. The template is screwed or stapled to the back of the work. This leaves the routed face untouched, which is good. You don't have to worry about balancing the router on the work, and you don't have the router obstructing your view of what you're doing. Of course, you can't see the bit, but suq^rising as it may seem, that's seldom a problem. You can see the pin, and it Ls centered precisely above the bit.

Another advantage is that there's no offset to account for. You match the diameter of the pin to the diameter of the bit. You can introduce offset, of course, and there

What's most ub\iuus here is that you can't see what's going on. Mr. Hands has a hoard on the router table, and it's got a template nailed to it. But the bit is hidden from view, as is the work it is doing.

are occas ons when you do that. But for the most part, you make and use a pattern with a pin router setup. You also have a lot more options in terms of bits you can use, since you're not working through the template and a guide bushing.

You'll need to be able to raise and lower the overarm, not only to accommodate different thicknesses of stock but also to get into an enclosed template.

To start a cut, you can either drill a starting hole or plunge the work over the bit. In either approach, you position the work on the bit with the router switched off. Then set the arm. Until you get the hang of it. thus gaining confidence, take light cuts—'/* inch to Mft inch at a pass. Follow the outline of the template, then methodically clear the rest of the waste.

Rout the templates. The Gra step here is to lay out and cut the master pattern. This is making 1 template, nothing more or less. Keep the edge smooth. No nicks or gouges, pimples or ripples. No curve should exceed the diameter of the largest bearing or bushing you'll use, anywhere along the line. That's the only restriction on the contour.

The second and final step in this phase of the work is to rout the working templates. Clamp the master to another piece of template material, positioning it so the working templates will have space tor clamps where they won't interfere with the router. Use a pattern bit to cut the working templates. Don't goof, or you'll have to start again

TRY THIS!

You can cut both halves of your curved joint—and simplify setup in the bargain—if you take half the total offset from each of the workpieccs when you rout them to shape. This means your joint line will not perfectly match the master pattern contour, but I doubt that it will be obvious.

Using the master pattern, cut the two templates using a ft-inch pattern bit. The offset is Vi inch.

When using the templates to cut the workpieccs, use a V*-inch bit in a y*-inch guide bushing for both cuts. You'll back out V* inch of the offset from eaci piece. Thus, In the two cuts, you'll remove the full Yi inch of offset. (Yes, of course, you can use a different bit-bushing combination, so long as it produces a Winch offset.)

That will save you the time it takes to switch from the "flush" pattern bit to the "offset" pattern bit.

PIN ROUTINE«THE CUTAWAY

pin routir

»it ii onccmtric to oiik fin

PIN ROUTINE«THE CUTAWAY

pin routir

»it ii onccmtric to oiik fin

The penultimate operation: fitting the just-routed edges together to test the fit. If they do, you glue them. If they don't,you can hack the template away from the edge and try another pass. And if thty still don't fit? Cut a new set of templates.

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Woodworking Tools and Installation Tips

Woodworking Tools and Installation Tips

There are a lot of things that either needs to be repaired, or put together when youre a homeowner. If youre a new homeowner, and have just gotten out of apartment style living, you might want to take this list with you to the hardware store. From remolding jobs to putting together furniture you can use these 5 power tools to get your stuff together. Dont forget too that youll need a few extra tools for other jobs around the house.

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