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Taper Pins - What a great tip!

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Blog entry by totalrewind posted 07-09-2019 11:16 PM 417 reads 1 time favorited 1 comment Add to Favorites Watch

Inspired by a design by David P. the Drunken Woodworker, I recently built a picture frame sled for the tablesaw.

Nothing too surprising there.

Only instead of using toggle clamps I chose to use taper pins as endorsed by Sandor Nagyszalanczy in his EXCELLENT book “Woodshop Jigs & Fixtures” (ISBN 1-56158-073-2)

What a taper pin is, briefly, is a pin… that’s tapered. (Woa. Slow down, there.) I guess they’re a top secret machinist’s trick for getting parts to line up accurately and repeatably.

Of course to pull off that stunt you need a special tapered reamer too, so, “not for me”, I thought. Then it dawned on me—I already own a tapered reamer! (Cheap $3 Harbor Freight one) So all I did was design a tapered pin to fit the hole!

More background info, description, and free 3d-printable files on my site here:
https://theheadlesssourceman.wordpress.com/2019/07/09/taper-pins/

But so far, I can say, I LOVE THIS THING! I mean, you know how fiddly miters are about getting the sides the exact same length. Well now I can cut a 8×10 frame in any old order: one 8-inch, one 10-inch, back to 8-inch and despite having moved the stop (an otherwise fatal mistake), the cuts are identical well beyond my eye’s ability to tell the difference!

-- For more projects (not just woodworking) check out my project blog at http://theheadlesssourceman.wordpress.com



1 comment so far

View kaerlighedsbamsen's profile

kaerlighedsbamsen

1298 posts in 2134 days


#1 posted 07-11-2019 08:03 AM

Great tip, need to look into this some more. Thanks for sharing!

-- "Do or Do not. There is no try." - Yoda

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