Use feeler gauges to dial in your tenoning jig

I lower tenons on the desk noticed, utilizing a jig that stands the items on finish. I’ve at all times match the tenon to the mortise by step by step adjusting the jig to sneak up on the proper tenon. It occurred to me that I might save time and enhance accuracy by teaming up my dial calipers with a set of feeler gauges.

I begin by chopping the tenon barely oversize. Then I exploit the calipers to match the tenon thickness with the mortise width. In case you are making cuts on each side of a centered tenon, you’ll must divide that distinction in half. For those who’ve acquired one cheek already lower precisely, you may take away the total distinction. Regardless of the quantity is, choose a mix of feeler gauges that matches it. With the workpiece within the jig, place the feeler gauges towards the tenon, and bump a reference piece up towards the opposite facet of the feeler gauges. Maintain the reference piece proper there, take away the feeler gauges, and regulate the jig till the tenon cheek is resting towards the reference. You’re prepared to chop the tenon to remaining dimension, and all the different tenons in your meeting as nicely, with 0.001-in. accuracy.

cutting tenon with accurate jig

—BOB RIFKIN, Acton, Mass.

Illustrations by Dan Thornton
From High quality Woodworking subject #308

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A Slick Tenoning Jig

Phenolic plywood makes this jig slide easily over the tablesaw’s rip fence

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