Instructables
Picture of Table saw sled for precise angled cuts
There are plenty of table saw sled designs, here and elsewhere, on the Internet. A sled is an excellent addition to your table saw, and is usually intended to make precise 90 degree cuts. But occasionally you need to make a precise angled cut, as is required if you are doing segmented wood turning on a lathe. This Instructable shows you how to make a sled to make specific angled cuts on your table saw, more precise than anything you can buy for US$300.

Layout drawings in Imperial units are provided in the steps; layout drawings in Metric units included in step 7.




































 
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Step 1: What do you need?

The sled will be made from 3/4" MDF. 

You will need a precise measuring rule, a good framing square, a drafting triangle and a sharp pencil. A magnifying glass will be a big help also.
















Step 2: Make the MDF rectangle

Picture of Make the MDF rectangle
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Start with a rectangle of 19" wide by 16" deep MDF. As in the photo, align the top edge square with the left miter slot. Use a framing square held tight against a 3/4" board fit tight into the left miter slot. Position the MDF so it extends an inch left of the saw blade. Place a strip of 3/4" wide x 3/8" thick x 17" long hardwood into the right miter slot, under the MDF. The width of the hardwood strip must be trimmed precisely to fit into the miter slot without slop. Place some shims under the hardwood strip to hold it just above the saw table.

Now that you have everything positioned, carefully lift the MDF, apply a line of glue on top the hardwood strip, and replace the MDF, making sure it is still square. Weight the MDF above the hardwood strip and wait for the glue to dry.   

After the glue dries, trim off the excess on the left of the saw blade. You will now have the basics of an 18" wide x 16" sled.




















Wired_Mist13 days ago

DIY at it's Best :) One of these days I'm going to have to make somthing like this for my band saw. Great Job !

Bill WW (author)  Wired_Mist13 days ago

You sure could make one for your band saw as long as it has a miter slot (likely).

Now I'm glad I included metric dimensions.

Thanks for the reply!

Unfortunately, I have a Cheep band saw (brand specific accessories and a 62" blade over a 60" blade *frowns) It's this kind of situation that makes me want to make my own equipment :D

It's just going to take some "Creativity" :)

(Smile) "the 3:4:5 triangle principle"

'(Right) Triangle principle,' right? (SMILE)

Pythagorean Theorem, right? 'A' Square + 'B' Square = 'C' Square thus 9+16=25 and 'C' = 5

Bill WW (author)  charlessenf-gm7 months ago

Gee, I posted this in the wrong place the first time ...

Thanks Charles -

Glad you are smiling.

Yes, Pythagorean Theorem, I had that in school several times (the theorem), but never really thought of the practical applications until I worked in construction and saw carpenters and pipefitters use 3:4:5 triangles to lay out square corners. They would have run me off the project had I started to talk "theorem" or "Pythagoras".

April 2014 was Math Awareness Month (really).

SlickSqueegie8 months ago

Looks great! Nice work on this...

Bill WW (author)  SlickSqueegie8 months ago

Thanks; I made a test ring of 10 segments and can't see daylight between any of them.

But when I first made the ring, I brought it in to show my wife. I assembled the ring (with her watching), and it was terrible, big gaps. Then I realized I had left one segment in the shop, I had a ring of 9 segments!

LOL. The missing link! Its a great feeling when things come out perfect.

rimar20008 months ago

Good work, Bill. I made one similar for my new cutting table. But my table has not sled slots, I use the outer edges.

I marked the angles I use on the table, but anyway always I need to do some tries and adjustments until to get the desired angle. To achieve this, I provided a micro-adjustment screw to the sled.

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Buen trabajo, Bill. Hice uno similar para mi nueva mesa de corte. Pero mi mesa no tiene ranuras de trineo, yo uso los bordes exteriores.

Marqué los ángulos que uso en la mesa, pero de todos modos siempre tengo que hacer algunos intentos y ajustes hasta obtener el ángulo deseado. Para lograr este objetivo, he proporcionado un tornillo de micro-ajuste al trineo.

Bill WW (author)  rimar20007 months ago

Gracias Osvaldo.

Siempre tenemos que hacer algunos ajustes.

Tengo que hacer constantemente los ajustes en todo lo que hago.

Y no sólo en el taller.

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I have to constantly make adjustments in all I do.

And not only in the workshop.

rimar2000 Bill WW7 months ago

HAHAHA!

Bill WW (author) 7 months ago

Thanks Charles -

Glad you are smiling.

Yes, Pythagorean Theorem, I had that in school several times (the theorem), but never really thought of the practical applications until I worked in construction and saw carpenters and pipefitters use 3:4:5 triangles to lay out square corners. They would have run me off the project had I started to talk "theorem" or "Pythagoras".

April 2014 is Math Awareness Month (really).

longwinters7 months ago
Nice job, I like the way the depth stop doubles as a chip break to reduce splintering on the out board side
Bill WW (author)  longwinters7 months ago

Thanks, Longwinters.

Added the length stop after making the sled itself; there also may be some safety advantages to it. When cutting really small pieces, they remain on the board and can me moved with the eraser end of a pencil.

ldubia7 months ago

Thanks for your post. It was very well written and will benefit a lot of woodworkers.

I noticed in your figures you listed 12.5 degrees for an 8 sided segmented ring but you listed 22.5 degrees on the angle. Just a typo I know. I just started doing segmented work and staves. I will give your sled a try. I prefer to have one sled to handle ALL of the different angles. Right now I have 12 sided, 16 sided (11.25 degrees) and 36 segments (5 degrees)

Bill WW (author)  ldubia7 months ago

Thanks for your comments! I know you read this Instructable well, you found my embarrassing error, which I will correct.