In article ,
Unisaw A100 writes:

'Sides, it would be easier to align than a glued in fin
splitter. And hell, it's only $7.

Here's a qwik tip. Make your zero clearance insert. Turn off
your saw and take the insert out. Put in another insert
and raise the blade. Place your new insert on top of the
old one so that the blade also enters the slot on the new
insert. Move your fence over to the new insert. Take the
new insert off the table and start your saw. Now saw a
perfectly aligned kerf in the back of your new insert.

You're free to glue in a fin if you like, or use the
slot for your splitter (assuming you have one).
You'll have to shave off
some of the fin, of course, to allow some clearance.

Would this be easier than using one of those $7 inserts?
It's definitely cheaper, and even "Made in [fill in your
country]," assuming you don't farm out any of this.
(What?!? You mean you don't make your own zero clearance
inserts?!!!)

--
Jeff Thunder, still burning in rec.hell
Dept. of Mathematical Sciences
Northern Illinois Univ.
jthunder at math dot niu dot edu