you asked , so here is the way to do this .
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to start this ” cut and switch ” proses ,figure out your width of stock , by laying out your circle , and deviding it into as many ’ pie pieces ’ as you like , and as many concentric circles as you want .
at the edje of the inner circle , measure the width of the ’ pie crust ’ , and rip your wood wider than this ,
as it needs to be cut later to final size .and make somewhat longer for the same reason .
.
this is a sled i use to cut all of the triangles for my inlay .
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now cut other diagonal , all the triangles want to be the same size .
there is a rail at the proper angle on the side ,
and a stop at the heel .
.
the angle of your triangles is determined by the number of polygon sides ,
they must have equal numbers , so the first and last are not the same .
they must come to square exactly , or as pictured here , be straight across .
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the other color fills the other side .
.
this is a holder for cutting the curves in both pieces together ,
i mark one light one , and after cutting with its darker mate under it ,
use it to mark all of the lighter pieces .WHEN YOU CUT THROUGH
THE 2 PIECES ,FOLLOW THE LINE SMOOTHLY , NOT EXACTLY .
ANY HESITATION WILL MAKE THE KERF WIDER AND THE PARTS WILL HAVE GAPS !
only the 2 pieces cut together will match each other , don’t get them all mixed up !

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glue the alternate pieces together , because of the cut , the parts are not lining up along the edges .
’ feel ’ the parts seating toghether , this is where the tight joint in this freehand cut pans out .
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trim the edge that rides the stop best , since the triangle if slightly shorter ,
you need to ’ pad ’ the back stop to move the triangle up and it will move over on its own ,
cut this edje straight and stack all parts the same .
remember you have a right angle triangle , work with the ’ heel ’ and the square corner as your reference
in cutting these steps .

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now with the good edge against the rail and a bigger ’ pad ’ at the ’ heel ’ ,
cut the other side straight .

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crosscut all triangles to length , they should all be the same exactly .
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if they go to square , you got it .
anything after this step is optional .
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to get more out of my wood , i resaw them in half or in this case thirds .
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then run them thru the sander on a sled . anything under the parts will make them
bump , and you will get a thiner piece than you want .
NOW FOR THE READERS DIGEST IMPAIRED VERSION .( LOL ) !







-- david ,new mexico ,allheart






















22 comments so far
scottishrose
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84 posts in 60 days
posted 49 days ago
Oh ya, just like that. Uh huh. :-)
I guess it would help to have tools wouldn’t it?
I wasn’t sure I counted right. How many jigs did you have to build to do that?
Are building the jigs part of the next tutorial?
I was with you when you were cutting the pieces to length, step one.
I get the triangle part, step two, no clue how to build the jig though,
It all made sense at step three with both colors laid out in a circle (kind of)
So how do you cut those shapes out on a band saw and get them all to match?
or do you cut two at once and just those need to match perfectly, and what about the saw kerf?
Now I’m lost.
I guess it doesn’t matter I won’t be doing anything remotely like that in the near future.
You are quite a remarkable woodworker!
patron
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2379 posts in 235 days
posted 49 days ago
cutting sled ,
holder ,
sanding sled ( optional ).
and yes , as with all woodworking ,
some tools are nice to work with !
-- david ,new mexico ,allheart
EzJack
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177 posts in 65 days
posted 49 days ago
thank you
-- Ain't better or worse than any other woodpecker in the woods.
a1Jim
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16769 posts in 471 days
posted 49 days ago
Hey David good blog an I think I got this one thanks to your great details. Super work once again Bud.
-- Jim from Heirloom Woodshop Southern Oregon
BarryW
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872 posts in 800 days
posted 49 days ago
This is a beautiful tutorial…something which I will favorite…we have alot to learn from your experience…your years of careful thought…wow…tools are nothing without an imagination and careful planning. Thank you.
-- /\/\/\ BarryW /\/\/\ Stay so busy you don't have time to die.
nmkidd
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381 posts in 67 days
posted 49 days ago
Again….you’ve managed to completely confuse me….so what’s new? I grasped some of the first part, after that…..oh well.
Great pix and instructions for those that comprehend.
Oh..how tall do you have to be to ride that sled?? and can you use it in the snow??
-- Doug, New Mexico.......the only stupid question is one that is never asked!........don't fix it, if it ain't broke!
stefang
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1646 posts in 228 days
posted 49 days ago
I wish I could be a woodworker! Fantastic blog David. Awesome woodworking and sharing. Thank you. I got most of it, but I will have to read it a few more times to (hopefully) understand the whole process. I am also placing this in my favorites. A couple of questions:
1. What did you mean by the last piece being a different size. Is this to compensate for accumulated small errors on the angles of all the other pieces making up the half circle?
2. What size and specification bandsaw blade are you using?
I loved your jigs and learned a lot just by seeing how how you set them up. I also noticed that your tablesaw sled was made from chipboard. I think this is cheap and smart. You won’t have moisture issues with them and they are flat and will stay that way. Was it flooring chipboard?
I hope to try out this technique on a much smaller piece in the near future. You are the man!
-- Mike, American in Norway
dustbunny
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316 posts in 189 days
posted 49 days ago
Thank you David : )
You have been most helpful.
I am developing ADD
Every new blog you and Larry do
Makes me drop what I am currently doing and try
the ideas you blog.
Your creativity is amazing !!
Lisa
-- I inherited the woodworking gene and it's gone into overdrive.......
ellen35
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533 posts in 326 days
posted 49 days ago
David,
Thanks for such a clear blog.
The outcome is well worth the work.
Ellen
-- Ellen on Cape Cod
littlecope
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583 posts in 396 days
posted 49 days ago
Good Blog and Work, David! It took me four reads but I think I “see”...
Am I wrong or could you continue this, with a third or more courses of ever widening circles? I mean if you wanted to…The inner circle and course around it looks like more than enough work!
Outrageous Stuff!! You must have the patience of Job…
-- Mike in Manchester, NH---Unpleasant tasks are simply worthy challenges to improve skills.
hootr
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132 posts in 241 days
posted 49 days ago
ahh, i have much to learn!
thanks david beautiful work and well written
-- Ron, Missouri
blackcherry
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730 posts in 717 days
posted 48 days ago
OK i read the blog and i had to reset my internal breaker a couple of times. Wow this is a head banger of a project. Nice blog on such intricate work thanks for sharing…Blkcherry
GaryD
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50 posts in 263 days
posted 48 days ago
David, unbelievable beautiful work, and thanks for the post
-- Gary, Little River,SC I've Learned that the Lord didn't do it all in one day and neither can I
Karson
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25792 posts in 1294 days
posted 48 days ago
David: Another great creation. The blog on cutting the piece make sence now that you post them. getting the first angle is the critical part, so getting that jig and you are ready to go.
Nice creation.
-- What happens in the workshop stays in the workshop. No wait that doesn't sound right. Karson Southern Delaware karson_morrison@bigfoot.com †
lumberdustjohn
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82 posts in 60 days
posted 48 days ago
David, very impressive.
I don’t see this in my near future.
But some spare time in my shop and some scrap pieces of wood could kill some time, oh, and make saw dust.
Nice blog, thanks for sharing.
-- John Stoler Apple Creek Ohio
Kent Shepherd
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813 posts in 180 days
posted 48 days ago
David, I’m lost. Can you come show me how?
Really, nice blog. Amazing how your mind works. I can’t wait to try it out. I’ve got it on THE LIST
Way too many neat projects to do. I hope I live forever if I’m going to do everything that I want to.
-- Kent Shepherd * The goal is-----More Tools!
patron
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2379 posts in 235 days
posted 48 days ago
thank you all for your heart felt comments
your exitment is mine also !
stefang – i hope to be as wise and caring as you , when i get to be my age .
( not different size , different color , you don’t want two left shoes coming together ) !
lisa – i don’t know what ADD is , but i think i am developing LOSS . it’s like coming to an intersection and making a
dumb choice , then realizing that you have been there before , but from a different street .
littlecope -if the triangles are the same , this will go on forever , so you can change the pattern in the curves at each circle , if you want to liven things up , and drive yourself nuts !
karson – the angle is everything , for a circle . the number of sides ( this is a circular polygon ) determines said angle ,
this one is a 16 sided polygon , it has 32 parts in the inner or center , and 96 parts for the outer .making 128
pieces in total for this one , the length of the triangles determines the diameter of the circle , in this case 10 3/4” ,for a total diamiter of 43” for the inlay , with a 2 1/2” border , it comes to 48” for the table .
here is the first one i did , with a triangle length of 5’ ( feet ) .

-- david ,new mexico ,allheart
a1Jim
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16769 posts in 471 days
posted 48 days ago
Boy you were much shorter than maybe 24” tall. wonderful work bud.
-- Jim from Heirloom Woodshop Southern Oregon
patron
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2379 posts in 235 days
posted 48 days ago
kent – through LJ’s , we are all immortal !
jim – thats when the girls kept me like the lap dogs they like !
now i’m just a big mutt .
-- david ,new mexico ,allheart
cabinetmaster
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8533 posts in 452 days
posted 48 days ago
Great tutorial David. I just might have to try some of this myself. Thanks for the great post.
-- Jerry--A man can never have enough tools or clamps
mtkate
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659 posts in 219 days
posted 48 days ago
I only adopt mutts.
Thanks, David for this great how to!!!!!
Woodwrecker
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490 posts in 469 days
posted 47 days ago
I’m going to try and tackle this.
Thanks to your clear tutorial, it makes it a lot easier.
It’s really cool of you to share your knowledge!
You’re a top shelf craftsman and very generous.
-- Eric