I've been thinking about building a cross-cutting sled for my table saw and
have a question concerning miter slot bars. What type is recommended and
where is the best place to get them? Also, does anyone have a
recommendation on the size and type of sled to make?
I made mine out of quarter-sawn white oak. Start with a flat sawn board
and run it through the planer taking off one RCH at a time until it just
exactly fits on edge in your miter slot. Then rip off two (or more, if
you want spares) 3/8" thick slices. Those are your quarter-sawn runners.
I also used oak, but my fit came out a little loose so I used some small
brass oval head screws in the sides to snug up the fit. As they wear they
can be backed out a little to readjust.
I also have seen a magazine article recommending plastic, but I can't
remember the type of plastic. You might look thought some catalogs like
Rocklers for ideas.
I would start out with a google search of crosscut sleds.
You will get a lot of differing opinions on sleds. Most of us have
more than just one. Small, medium and large, if you have the space to
store them. I have used both baltic birch plywood and MDF for the base.
MDF does get a little heavy for a large size sled. You should seal
all the surfaces of the base, and wax the bottom so it slides easily on
your table. I have a Delta Unisaw and the miter slots are exactly .751
wide. It made it easy for me to use 3/4 x 3/8 flat ground steel that we
keep at work. It turned out to be a perfect fit. You can also use
hardwood for the runners, along with UHMW, and pre made adjustable width
runners from various sources.
I'm sure many more people will have info to add to this.
Christopher M. Nail wrote:
Just finished mine a couple days ago, works great. Used baltic birch
12mm for the base, and glued
three layers for the front and back fence. Used UHMW for the
runners. This is your first, don't spend
a lot of time or money on it, just enough to make it ACCURATE. On
your next one, you can shoot
for good looks and such.
One tip, make the rear fence less then full width, so you can rotate
180 and place a 45 degree fence on
Christopher M. Nail wrote:
I only like one, and I have tried a bunch of miter slot bars. The one that
I really like is sold by rockler, and has spring loaded ball bearings in it
which keep the bar totally tight against one side. All of the others that I
have used always required that the be a little loose to keep from binding in
the slot, and that allowed for more play than I was willing to live with.
The ones that I have tried are, making ones of wood, but they change
tightness throughout the year with moisture, using UHMW which worked better
than wood, smoother sliding, but the cut of the width has to be very
accurate. Then I tried some adjustable metal one from Incra, and it bound
in the slot when it was adjusted snug. And I also have a miter bar with
graphite slugs, that are not spring loaded, and they are either too tight,
or as they wear, too loose. The spring loaded ball bearings are they way to
go, I just wish everybody used them.
Just go to rockler.com and look for their Adjustable Miter Bar.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.