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EXTRA LONG Taper Jig

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Project by tyvekboy posted 09-15-2014 01:33 AM 5818 views 6 times favorited 14 comments Add to Favorites Watch
EXTRA LONG Taper Jig
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Sept 14, 2014

Iʻm working on a project that requires a long taper on a piece of wood thatʻs abut 64 inches long.

This long taper is going to require a jig that I donʻt have so I made this one. I donʻt know if it is really going to work but theoretically it should work.

It consists of a base made out of 1/2 inch baltic birch plywood about 8 inches wide and 72 inches long with 4 slots cut into it through which Iʻll have T-nuts. The bottom of the slots in the base are recessed so that the heads of the T-Bolts are recessed. (See Addendum at bottom)

On top of the base is what Iʻll call the taper/clamping board which is a piece of 3/4 inch plywood 4 inches wide and 72 inches long with short slots cut into it perpendicular to the slots on the base.

I then added knobs and the hold-down clamps to the taper/clamping board.

This is what the taper/clamping board looks like with the threaded knobs that clamps it to the base at the right angle and the hold-down clamps that hold the wood.

The base will ride along the table saw fence. This is what it looks like ready to cut a taper in a wide board.

Here is another setup with a narrower board that also needs a taper cut.

Iʻm sure Iʻm going to need a roller support to start the cut and the out feed table will help support the jig on finishing the cut.

I sure hope it works. Iʻll edit this posting after I try it out.

ADDENDUM:

In building my Mahogany Coat Tree I discovered that the original 8” wide base worked for the narrow pieces that I had to taper but the wider piece required a wider base. I made another base that is 12-1/2 inches wide that worked better for the wider piece that I tapered.

Thanks for taking the time to check this out. All comments and favorites welcomed.

-- Tyvekboy -- Marietta, GA ………….. one can never be too organized





14 comments so far

View Irishmike757's profile

Irishmike757

23 posts in 1056 days


#1 posted 09-15-2014 01:42 AM

Necessity is the mother of invention. Nice job coming up with a tool to meet your need.

View Jim Jakosh's profile (online now)

Jim Jakosh

17194 posts in 2573 days


#2 posted 09-15-2014 01:43 AM

That is a nice jig and will work very well, Alex. I have one very similar and use it a lot with many modifications for different angles. That type of jig keeps the part immobilized during the cut so just the bottom of the jig is sliding on the table and against the fence.
The only thing you might want to add is a stop or gage point at the end toward the operator so the width of the boards is consistent from board to board being that it is being cut on a taper.

It is well thought out and you will love using it!!.............Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View HillbillyShooter's profile

HillbillyShooter

5811 posts in 1760 days


#3 posted 09-15-2014 03:57 AM

Great looking and nicely designed jig. I agree with Jim that will work very well and suggest you consider adding a stop at the operator end for consistent cut for each board.

-- John C. -- "Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth." George Washington

View tyvekboy's profile (online now)

tyvekboy

1344 posts in 2481 days


#4 posted 09-15-2014 04:01 AM

Jim and Hillbilly—I think thatʻs a great suggestion. I think Iʻm going to have to redesign it for more flexibility and add a variable stop at both ends. I think my base is going to have to be wider. Good suggestions. Thanks.

-- Tyvekboy -- Marietta, GA ………….. one can never be too organized

View HillbillyShooter's profile

HillbillyShooter

5811 posts in 1760 days


#5 posted 09-15-2014 04:06 AM

Have you thought about how you’re going to store this great jig? I have a storage box I built a couple of months ago for some track saw rails that I’ve thought about posting since it is horizontal given the vertical limitations of my basement. If you do make any changes, please post so we can see.

-- John C. -- "Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth." George Washington

View tyvekboy's profile (online now)

tyvekboy

1344 posts in 2481 days


#6 posted 09-15-2014 05:26 AM

Hillbilly—itʻs funny you mentioned storage. I have already made a place to store it. Itʻs hanging from the joists over head in the shop. If you looked up in my shop you would have a good laugh. I also made places to store the multi-use table saw jig pieces too.

-- Tyvekboy -- Marietta, GA ………….. one can never be too organized

View stefang's profile

stefang

15512 posts in 2802 days


#7 posted 09-15-2014 07:11 AM

Looks like a great jig to me.

-- Mike, an American living in Norway.

View Charlie75's profile

Charlie75

286 posts in 1732 days


#8 posted 09-15-2014 10:14 AM

It will work. I made a similar jig a while back when I needed to cut 30” tapers for a project. The only difference is I put a 3/4” wide hardwood strip that runs down the miter slot in my saw. I can see how that would be more difficult on yours because of the length.

-- Charlie75, Alto

View Roger's profile

Roger

19886 posts in 2271 days


#9 posted 09-15-2014 11:55 AM

Oh yes. For those long long tapers.

-- Roger from KY. Work/Play/Travel Safe. Keep your dust collector fed. Kentuk55@yahoo.com

View TheWoodenOyster's profile

TheWoodenOyster

1275 posts in 1402 days


#10 posted 09-15-2014 12:37 PM

I see a krenov standing cabinet in your future…

-- The Wood Is Your Oyster

View luv2learn's profile

luv2learn

2467 posts in 1770 days


#11 posted 09-15-2014 03:32 PM

This is a great looking jig, well thought out.

-- Lee - Northern idaho~"If the women don't find you handsome, at least they ought to find you handy"~ Red Green

View Mean_Dean's profile

Mean_Dean

5064 posts in 2615 days


#12 posted 09-16-2014 12:00 AM

Well, that’s the longest taper jig I’ve ever seen! Nice!

-- Dean -- "Don't give up the ship -- fight her 'till she sinks!" James Lawrence, CAPT, USN

View Schwieb's profile

Schwieb

1798 posts in 2929 days


#13 posted 09-16-2014 10:36 AM

Alex, That will do the job for sure, but I have to wonder what you are making with such long tapered components.

-- Dr. Ken, Florida - Durch harte arbeit werden Träume wahr.

View WistysWoodWorkingWonders's profile

WistysWoodWorkingWonders

12689 posts in 2624 days


#14 posted 11-27-2016 10:25 PM

Cool Jig Alex – I’ve been meaning to build one of these for a while, but haven’t had a project design that requires one just yet. I’ll keep this jewel in my back pocket as it is one of the better ones I have seen.

Wisty

-- New Project = New Tool... it's just the way it is, don't fight it... :)

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