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MAKING KERFED ARCH AND JIG

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Blog entry by kiefer posted 11-20-2013 07:33 PM 1740 reads 6 times favorited 10 comments Add to Favorites Watch

Here are some pic sand description of the process I use to make the arch and mouldings for the fruit stand .
In this case I used some hardwood flooring with the finish and the backside grooves removed which brings it down to about 9/16 ”.

I set up my sled with simple index pin and two index marks for left and right hand cut on the movable panel on the sled.

I use a 7 1/4” 40 tooth blade and the arbor tilted to 10 DEG.
The blade is set in height to leave about 3/32”of the board as a continues layer which will be the inside of the arch .
I make the first set of cuts using the index pin as a starting point and then move the sled panel which has the index pin attached to the right hand position and cut the next set of kerfs .

I build as simple jig to form the arch from the arch from some 4”x4”and a clamp from some timing belt and a threaded rod etc. The clamp is tightened with a cordless drill SET TO A LOW TORQUE SETTING which makes it fairly fast and eliminates a lot of clamps .


I put some red tape on the belt as positioning marks for the material to be placed .

The kerfed part and a strip of veneer which is the out side layer are glued up and positioned in the jig and the belt is tensioned pulling the arch tight against the form block .


After the glue has set for a few hours I fish the edges on the jointer and sand all surfaces .
While I was at it I also made some ornamental moulding using the same kerfing set up for a couple of boxes in the works .

-- Kiefer 松



10 comments so far

View a1Jim's profile

a1Jim

112883 posts in 2325 days


#1 posted 11-20-2013 07:43 PM

Very good jig Kiefer smart approach.

-- http://artisticwoodstudio.com Custom furniture

View stefang's profile

stefang

13633 posts in 2082 days


#2 posted 11-20-2013 08:11 PM

Well done. Great clamping method.

-- Mike, an American living in Norway.

View HillbillyShooter's profile

HillbillyShooter

4875 posts in 1040 days


#3 posted 11-20-2013 09:06 PM

Very nice jig. I really like the kerfs slanting in opposite directions—add a great element of interest to any piece. Just one question if I might: why are you using a 7-1/4” saw blade as opposed to a regular 10” saw blade?

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

View kiefer's profile

kiefer

3365 posts in 1414 days


#4 posted 11-20-2013 10:01 PM

HillbillyShooter
The 7 1/4 blade I use with blade stabilizers cut super smooth when ripping and cost a fraction of a 10” blade $ 6.30 but I like the very thin kerf for this application.

-- Kiefer 松

View jaykaypur's profile

jaykaypur

3459 posts in 1156 days


#5 posted 11-20-2013 10:16 PM

Very good blog and another technique for me to try.

-- Use it up, Wear it out --------------- Make it do, Or do without!

View HillbillyShooter's profile

HillbillyShooter

4875 posts in 1040 days


#6 posted 11-20-2013 10:42 PM

Keifer—Thanks, I knew there had to be a good reason.

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

View ringtail's profile

ringtail

17 posts in 539 days


#7 posted 11-21-2013 11:10 AM

Good sharp mind at work.

View Roger's profile

Roger

15305 posts in 1552 days


#8 posted 11-21-2013 12:42 PM

I knew there would be another use to recycle that old drive belt.

-- Roger from KY. Work/Play/Travel Safe. Kentuk55@bellsouth.net

View Roz's profile

Roz

1661 posts in 2534 days


#9 posted 12-07-2013 03:15 AM

Very instructive thanks.

-- Terry Roswell, L.A. (Lower Alabama) "Life is what happens to you when you are making other plans."

View mafe's profile

mafe

9671 posts in 1837 days


#10 posted 12-08-2013 09:56 PM

Yes a perfect blog.
So informative.
Love the recycle of the belt.
Best thoughts,
Mads

-- Mad F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

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