Tangent Cutting Board

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Project by Jim Jakosh posted 06-04-2012 05:50 PM 2890 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


1241 posts in 1277 days

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

Now that’s a cool cutting board

-- JoeyG ~~~

View michelletwo's profile


2249 posts in 1667 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


539 posts in 951 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


4368 posts in 1688 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.

View Alongiron's profile


402 posts in 1345 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.....

View waho6o9's profile (online now)


4911 posts in 1228 days

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

Awesome board, thanks for sharing.

View itsmic's profile


1419 posts in 1770 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

11421 posts in 1757 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


2587 posts in 1669 days

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

Really nice!

-- Erwin, Jacksonville, FL

View SPalm's profile


4806 posts in 2533 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.


-- -- I'm no rocket surgeon

View Joe Lyddon's profile

Joe Lyddon

7710 posts in 2704 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: ... My Small Gallery:"

View Greg..the Cajun  Box Sculptor's profile

Greg..the Cajun Box Sculptor

5079 posts in 1960 days

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

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

-- If retiring is having the time to be able to do what you enjoy then I have always been retired.

View patron's profile


13034 posts in 1993 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


7010 posts in 2006 days

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

Absolutely stunning… visually very exciting..

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

View fernandoindia's profile


1073 posts in 1595 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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