making fully functional metal ninja
throwing stars down in the description
there is a link to a PDF to download
this template for throwing stars of
course you can go with other designs but
I like this one so I’m gonna be using it
I have this piece of 16 gauge steel
which costs less than $7 and has enough
metal in it to make a bunch of throwing
stars to make these ninja stars we’ll be
using a hacksaw a drill with a few
different bit sizes a metal file and a
small belt sander to help myself be able
to drill through the steel I also have
this nice little punch when you push it
down into the steel plate it compresses
a spring up to a certain point and then
slams down onto it using the harden tip
to make a mark in the steel that really
helps you aim your drill bit right where
you want it to go we have a variety of
sizes let’s start by making this medium
small throwing star we do want to glue
this piece of paper down on to our plate
of Steel we’re going to be using some
spray glue but you could also use a glue
[Music]
we now want to use our hacksaw to cut
this piece of steel out from the rest of
the plate we need to drill nine holes
into this ninja star eight going around
the outside and one in the middle
let’s start by taking our punch and
marking into the steel the very center
of each of those nine holes now that
we’ve marked the nine spots that we need
to drill we’ll use our smallest drill
bit to drill pilot holes through each of
those wider drill bits often have a hard
time drilling into a flat piece of steel
so drilling a pilot hole can really help
the drill bit start cutting where it
needs to
[Music]
with all nine holes drilled it’s time to
[Music]
one of our eight points is now cut out
let’s go all the way around and do that
for the rest of them once we have our
ninja star down to this point we want to
remove any excess bit of the metal that
still has the white paper attached to it
we’re trying to get our profile to match
the black lines pretty closely for this
we can either use a metal file or a
small belt sander I’ve got this one inch
belt sander and using that tends to heat
up the steel really quickly so I’ve got
a bowl of water that I can use to cool
it down
so it doesn’t burn my fingers while I
you’ve now got all of the edges cut down
to where we want to so at this point we
can remove the paper with some fine grit
sandpaper and then start doing some
cleaning up and maybe a little bit of
decorating now let’s use that sandpaper
and our rounded metal file to just clean
up some of the edges especially the
inside of this throwing star has a very
jagged edge and we don’t want to cut
ourselves on that our ninja star is
getting really close to being ready to
use but I think we need to add a tapered
edge on both sides of each of our points
once again we could be using our file
for this I prefer to use the 1 inch belt
sander
at this point with the edges added on if
you like the all-metal look you could
just say you’re done right here but I
think that this is a ninja tool and we
should make it a little bit more stealth
let’s take some black paint and see if
we can’t add on that black surface to
our whole star our ninja star is now
painted black and it’s looking very
stealthy but I think I want to sand off
the paint on all the edges so we just
our ninja throwing star is now complete
and just to see how it would go I also
made one of the larger and smaller sizes
let’s take these bad boys outside and
see how they do against some targets
first up is an extremely easy target
it’s just a block of styrofoam the ninja
not bad with the small one I’m a little
concerned about how well it will stick
into things because it doesn’t have much
weight behind it but of course on
styrofoam even it does a great job today
we learned that I am NOT a ninja our
little one doesn’t really seem to have
enough mass to penetrate this particle
board but the medium and the large ones
seem to do pretty well right in between
from 15 feet away the logs are like
pressed up against each other and I
managed to thread the needle and get the
throwing star in between two of them
because that’s how good of a shot I am I
couldn’t do it on purpose if I tried 100
times but that’s a worse way of throwing
them guys we’ve still got more for you
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