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Understanding Guide Bushings

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Guide-bushing how-to

Guide-bushing how-to

To use a guide bushing, you need an edge guide or template to follow. You'll want to size the template slightly larger or smaller than the workpiece. Templates can be made of just about any material, but we prefer 1/4" hardboard.

To make a template, simply affix your drawing or pattern to the template material with spray adhesive, and then bandsaw or scrollsaw it to shape. After completing the cut, file or sand-smooth any irregularities or rough spots on the template edges.

Attach the template to your workpiece with a few drops of hot-melt glue or double-faced tape. Use a router pad to hold your workpiece in place on your bench while you rout. If you are going to rout completely through the workpiece, attach a backer to protect the router pad and benchtop.

Using a straight bit that fits through the guide bushing, rout out the waste area surrounding the template. Remember to rout counterclockwise when cutting around the outer edge of a template, and clockwise when routing the inside. Once you're finished routing, gently separate the template from the workpiece with a chisel.

Continued on page 3:  Figuring template offset



Comments (1)
pf2 wrote:

After many years of using my DeWalt DW621 plunge router, I stumbled on the fact that the bushings were off-center relative to the bit -- even the factory bushing plate. Had to rework all my router bases. This wasn't noticed as long as I held the router in the same orientation; but when cutting door slat slots, I had to turn the router for safety/convenience. That's when the issue showed itself. Just a heads up...

1/15/2015 05:41:57 PM Report Abuse

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