miter devider

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Blog entry by patron posted 09-24-2009 03:26 AM 1503 reads 7 times favorited 16 comments Add to Favorites Watch

this is a jig i made years ago, it devides any angle for miters .
the circles have mesh teeth that rotate both sides together .
i originaly used sand paper , but it wore out quick , and the
circles slide singularly .
i found some rubber “v” grooved mat , and glued it to the sides
of the circles so they mesh , ( it’s not the best , but it works for now )i had to re-cut parts for this new improvement ,
as there wasn’t room for the mat .
it is registered to the table with dowels , that fall in holes for them ,
and is centered in the cut line .
with a board parallel to the RAS fence , i placed the stops on the circles,
so they are straight across and paralell to the fence.
( i will probably make them with smaller dowels also soon ,
and make various mounting positions for them on the wheels .
you turn the wheel , it turns the other one in reverse ,
put your adjustable angle against the stops , and turn the wheels until it
matches . in the front right of the jig , is a thumb screw that holds the wheel from turning .
DON”T FORGET TO RAISE THE SAW , or you will cut the jig !
this is just a model , maybe charles maxwell will teach us how to make gears sometime ?
the idea is that it could have positive stops at major angles , just like the chopsaws.
arms can be extended with stops for frames or multiple pieces .
this first pic. is just truing the wheels around its dowel

in picture below
when set .


notice thumb screw in pic. below

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

16 comments so far

View poroskywood's profile


614 posts in 2087 days

#1 posted 09-24-2009 03:47 AM

OH Wow! Brilliant. Your ingenuity is unsurpassed David. I suppose someone could incorporate this idea onto a crosscut sled for a table saw?

Your like this old country singer I know, I’ve been playing music with this guy for over ten years, I mean hundreds of songs, and he’ll say to me “here’s one I haven’t played in a while” and it will be a song I have never heard before, and it will be awesome. I’ll say “In all the years we’ve been playin music you never once played that song.” He’ll say “I forgot I knew it.”

-- There's many a slip betwixt a cup and a lip.--Scott

View cabinetmaster's profile


10874 posts in 2281 days

#2 posted 09-24-2009 03:54 AM

What a great idea. I wish I had my RAS back now…......................lOL

-- Jerry--A man can never have enough tools or clamps

View degoose's profile


7049 posts in 2077 days

#3 posted 09-24-2009 04:10 AM

How fantastic is that.,... but I still don’t like RAS’s

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

View patron's profile


13145 posts in 2063 days

#4 posted 09-24-2009 04:28 AM

scott ,
i have designed one for the tablesaw ,
but it requires linkage or cables to go over the saw blade ,
as the wheels must work opposite of each other .

mucho complicado !

larry you could use one on the beastie ?

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

View littlecope's profile


2949 posts in 2224 days

#5 posted 09-24-2009 04:35 AM

Slick trick, David!
I bet your bag of tricks has more in it than Felix the Cat’s!!

-- Mike in Concord, NH---Unpleasant tasks are simply worthy challenges to improve skills.

View davidroberts's profile


1003 posts in 2208 days

#6 posted 09-24-2009 06:10 AM

That is just too ingenious. How do you keep the wheels from moving from one cut to the next? Maybe they are tight enough against each other and it’s not a problem?

-- God is great, wood is good. Let us thank Him for wood......and old hand tools.

View scrappy's profile


3505 posts in 2153 days

#7 posted 09-24-2009 06:56 AM

Very Cool idea! Could have lots of fun with this on a RAS.

Thanks for the demo.


-- Scrap Wood's the best...the projects are smaller, and so is the mess!

View a1Jim's profile


112525 posts in 2299 days

#8 posted 09-24-2009 07:00 AM

cool jig david

-- Custom furniture

View stefang's profile


13530 posts in 2057 days

#9 posted 09-24-2009 11:43 AM

Brilliant jig David. It always amazes me to see how many ways tools can be made to perform different tasks.
Just the same I’m glad I have a sliding miter saw, because I have just about run out of wall space to hang more jigs.
Enjoyed your blog.

-- Mike, an American living in Norway.

View spanky46's profile


978 posts in 2113 days

#10 posted 09-24-2009 11:54 AM


-- spanky46 -- Never enough clamps...Never enough tools...Never enough time.

View moshel's profile


864 posts in 2406 days

#11 posted 09-24-2009 01:07 PM

good stuff! I guess it would also work with sliding compound (I have neither :-)

-- The woods are lovely, dark and deep, but I have promises to keep...

View patron's profile


13145 posts in 2063 days

#12 posted 09-24-2009 01:10 PM

yes it would , and much less trouble finding the correct bisect .

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

View Blake's profile


3437 posts in 2597 days

#13 posted 09-24-2009 06:29 PM

Great idea!

-- Happy woodworking!

View SCOTSMAN's profile


5533 posts in 2308 days

#14 posted 09-24-2009 06:39 PM

Very well done my best friend, a genious you are me boy.And no mistake.Alistair

-- excuse my typing as I have a form of parkinsons disease

View Karson's profile


34902 posts in 3123 days

#15 posted 09-25-2009 05:37 AM

David: A great performing jig. That looks like it should be made with a track and a crank handle to move the two discs in sync.

You should be able to do the same for a table saw if the disc’s were bigger and the blade was further out to the front. Maybe a big gear to the operator side driving a smaller gear underneath the disk that holds the wood. That would allow the blade to get into the area where your disks are touching on this version.

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware †

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