Making T-nuts for the Taig Mill
T-nuts are a handy and easy to make
accessory for the Taig milling machine.
The nuts that Taig supplies work just fine as far as keeping your work
place goes, but they sit way down inside the slot, and can be hard to
you're setting up a work piece.
Ten of these little T-nuts can be made for about a dollar. They
can be bought, too,
for about two bucks apiece. Cheap enough, but these are so easy
to make, why
send money to someone else to do you're work for you? It's
This is not a very long tale, but there are some comments with the
The first thing to do is indicate the
fixed jaw of the vise square to the mill table.
Just using a square would probably be good enough.
For 10 T-nuts, a piece of 1/2" square aluminum stock 6 1/2" in length
will do it.
Find one of the long edges of the work piece.
Mill one edge with an in-feed of .125" and to a depth of .25".
Then flip the piece end
for end without disturbing the in-feed and mill off the other
edge. Mill about .025" off
the top and it's ready for the next step.
Starting at one end, a spotting drill is centered in the width of the
piece, and the first
in-feed is made to .25" from the end of the piece, where the first hole
is spotted and
drilled. Then, another hole is drilled every .532" until there
are 10 holes. The distance
of .532" is derived from the length of the finished nut, which is .5",
plus the thickness
of the slitting saw that will cut the T-nuts to length. The
slitting saw used for these will
be .032" thick, so .5" + .032" = .532".
When the drilling is done, the ten holes are tapped 10-32.
works great for a lube, and doesn't leave things all oily. Just
rub the wax
onto the tap.
The piece is now mounted in a vise on the lathe, and the T-nuts are
off. Start by setting the end of the piece against the slitting
saw, back out
the cross slide to clear the saw, crank the carriage over .516", and
cut, cut cut.
Clean up any rough edges with a
file. Take each T-nut and set it on its' top side.
Use a large punch or an old dead center to blunt the edge of the bottom
in the nut. Just put the punch into the threaded hole and whack
it a couple of good
licks with a hammer. This will flatten the thread at the bottom
of the nut so mounting
screws won't go all the way through the nut and scar the bottom of the
the milling table.
Ten little T-nuts.
More Taig Lathe & Mill Projects
Copyright 2009 Dean Williams