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Tangent Cutting Board

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Project by Jim Jakosh posted 06-04-2012 05:50 PM 3126 views 13 times favorited 52 comments Add to Favorites Watch

This is my first cutting board. It was made out of necessity because that little plastic one we use in the kitchen had been cut all the way through. I made this one to fit in the cabinet where the plastic one was stored. It was a good size because I could not cut any bigger circles in my lathe. It is 3/4×9 1/4×10 3/4 and made from a maple board and a walnut board.

I had this drawing on my desk for over a year and thought I could incorporate it in the cutting board I needed. It was a little hairy cutting the outside circle to nothing on one side 4 times. Even though I put plenty of Titebond III glue on it, it still chipped away more than I would like. In theory it works, but in practice, not the best idea.

I started with the 3” dia. walnut circle and bored the 3 3/4” piece of maple to fit it. Then I turned that piece until I hit the common tangent point of the two and then I fit that circle into the next piece of walnut..etc.

I cannot get Photobucket to work to make a blog so I added three more pictures. The circles are the alignment tools for mounting the blanks on the faceplate. Since I could not put a center in it to mark it, I laid out a cut circle and a finish circle for every diameter. I used the scroll saw to cut all of them out on the “cut circle” line. These alignment tools are fit up to the finish circles while I screwed the next piece to the faceplate. Each part was mounted twice- once for the inside and once for the outside circle

The 5th shot is turning one assembled circle to the tangent point of the two.

The last shot is the cutting of the final hole in the cutting board. Since I could not swing it to bore it, I bored a circle to fit that final assemble and then scabbed on some ears so I could screw it to the waste of the board and used a piloted router bit to transfer that diameter to the board …there that is my blog, too!

I did all the turning in my Southbend metal lathe because I cannot cut that accurate and square in my wood lathe. I was taking off .002” at a time to get the needed fit.

It is finished with Behandla salad bowl finish from Ikea

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





52 comments so far

View JoeyG's profile

JoeyG

1259 posts in 1378 days


#1 posted 06-04-2012 05:52 PM

Now that’s a cool cutting board

-- JoeyG ~~~ http://www.facebook.com/JHGWoodWorks

View michelletwo's profile

michelletwo

2292 posts in 1768 days


#2 posted 06-04-2012 06:00 PM

it looks like the center is dipped in..what an illusion! cool board!

-- We call the destruction of replaceable human made items vandalism, while the destruction of irreplaceable natural resources is called development.

View Kevin's profile

Kevin

539 posts in 1052 days


#3 posted 06-04-2012 06:05 PM

Wow, great job Jim. I’m sure you will get a lot of use out of it.

-- Measure twice, cut once, then rout a whole bunch

View BritBoxmaker's profile

BritBoxmaker

4448 posts in 1789 days


#4 posted 06-04-2012 06:17 PM

Amazing cutting board. I don’t know what kind of wood ‘necessity’ is but it seems to come in two shades and makes a blinding board.

-- Martyn -- Boxologist, Pattern Juggler and Candyman of the visually challenging. http://www.theartofboxes.com

View Alongiron's profile

Alongiron

435 posts in 1446 days


#5 posted 06-04-2012 06:25 PM

Nice! Makes me dizzy.. I might cut my finger! I bet you that design made you think a little bit before making your cuts!

-- Measure twice and cut once.....Steve Lien

View waho6o9's profile

waho6o9

5301 posts in 1329 days


#6 posted 06-04-2012 06:28 PM

Awesome board, thanks for sharing.

View itsmic's profile

itsmic

1419 posts in 1871 days


#7 posted 06-04-2012 06:29 PM

Great looking board, probably the only one of it’s kind, that is some precise woodworking, Great job, thanks for sharing

-- It's Mic Keep working and sharing

View Jim Jakosh's profile

Jim Jakosh

12383 posts in 1858 days


#8 posted 06-04-2012 06:44 PM

Thanks for all the nice comments!

Hi Alongiron, there was little room for mistakes on this one. I did make one but I was able to compensate for it in the next circle because I had a enough material to turn off. I laid out the parts on the boards around midnight with a couple of Molsons. I’ll bet I erased the circles at least 6 times. The inner diameters were getting confused with the outer diameters and I had to be positive before I scroll sawed them all out. One of the holes for the scroll saw blade was on the wrong side of the line and that was my error to work out.

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

View Bearpie's profile

Bearpie

2592 posts in 1771 days


#9 posted 06-04-2012 07:02 PM

Really nice!

-- Erwin, Jacksonville, FL

View SPalm's profile

SPalm

4940 posts in 2635 days


#10 posted 06-04-2012 07:02 PM

Wow Jim, that is cool.
That took some engineering. And you did it, good for you.
I can really appreciate the work that went into this.

Steve

-- -- I'm no rocket surgeon

View Joe Lyddon's profile

Joe Lyddon

7950 posts in 2805 days


#11 posted 06-04-2012 07:08 PM

That is ONE Super COOL cutting board!

Look at it long enough & it looks like it’s coming UP at you… then sinking AWAY from you!

Crazy man Crazy!

Great technique!

I wonder if the same could be done by Inlaying circles on top of one another using a router?
... might be interesting to try…

(well, it wouldn’t be the Same… only on one side instead.) LOL

Thank you.

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"

View Greg..the Cajun Wood Artist's profile

Greg..the Cajun Wood Artist

5277 posts in 2061 days


#12 posted 06-04-2012 07:10 PM

Excellent design..it most certainly had a nice 3-D effect on my eyeballs

-- Each step of every Wood Art project I design and build is considered my masterpieceā€¦ because I want the finished product to reflect the quality and creativeness of my work

View patron's profile

patron

13182 posts in 2094 days


#13 posted 06-04-2012 07:13 PM

very well done jim

and as a first too

those tangents can be tricky anytime
way thin grain changes

congratulations !

-- david - only thru kindness can this world be whole . If we don't succeed we run the risk of failure. Dan Quayle

View degoose's profile

degoose

7052 posts in 2107 days


#14 posted 06-04-2012 08:19 PM

Absolutely stunning… visually very exciting..

-- Drink twice... and don't bother to cut... @ lazylarrywoodworks.com.au For lovers of all things timber...

View fernandoindia's profile

fernandoindia

1077 posts in 1696 days


#15 posted 06-04-2012 08:33 PM

Nice one. Great job.
Indeed better than the plastic one.

-- Back home. Fernando

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