last time on Evan and Katelyn we made
raindrop Damascus with Alec Steele
today we're gonna turn it into a blade
for our 3d printed knife. 
ok so what's next. now we need to make
sure there's the right thickness I'm so glad
that you asked me this question because
I wanted to started doing the wrong
thing I'm gonna cut off a piece that's a
little bit large then we're gonna
surface grind it get it down to the thickness
we want check in the etch that the pattern is
still there if it's not 100 of the 1000
process
so we're about to take the piece we just
cut off an etch it in the acid we
worried that we ground on the Damascus
so much that the pattern would no longer
show up so this was a very stressful
moment so it's not as dense as it was
earlier we've ground out some of the
density but it looks beautiful
everything is going swimmingly really
well so far we have the steel down to
the right thickness we're just gonna
trace the knife onto it cut it out easy
right to get better scribe lines for
cutting out our knife we first painted
it with blue dykem. BLUUUUUEEE DYYYYKEMMMMM. you know, i think it's the solvents.
tricky bits and now
that's scribed need to work out where the holes are
going they're called transfer punches and
I think I'm missing the ones that we
need great we can do one give this side
of whack here I have the exact one that
I was looking for look at that I bent it
yeah it did the job it needed to do so
we had our outline scribe and our holes
punched so next up was drilling out the
holes we're gonna do a couple dabs of
superglue to clamp our newly scribed and
dykemed part
there we go that breaks the superglue a
nice thing about this fixturing
technique thank you NYC CNC is then
neither of the parts have super glue
residue so now we have the holes drilled
next we need to make this look like a
knife this way. k-nife k-nife. how are we gonna cut it out?
that is looking pretty good rough ground
in how did you guys like that. kinda scary very fun
so on our edge we want to make sure that we leave
that proud because when we sharpen it we
need enough material to sharpen back do
it a little bit test it do a little bit
tested from bastard to second cut to
smooth I'm only gonna do a push stroke. more accurate more controlled
so our engagement here it's just a
trapezoid it's slotting in to those
flats do we have this part disassembled
yes yes let's measure that and then just
make sure that we stay within
it we can probably keep it up there and
just keep holding it up to it make sure
it's a nice fit we want it to be very
proud of us I'm already pretty proud
how's it gone still filing
Evans about to attempt bringing in the
risky part that has to be a really good
fit yeah
you have slightly more confidence in
yourself than either of us haven't you
I'd do the bottom. do the bottom? oh gosh
right this way? parallel but more like this
oh my goodness it's terrifying the humanity! test fit time!
that's tight enough that we will be able
to gently bring it in with some
sandpaper later you show me the file
or the the blade Oh
sorry not the file there she is
oh you did a nice job so we have the
rough shape of the blade defined before
we harden it though we're gonna go ahead
and add the primary bevel and then we're
gonna air harden it? oil harden it! oil harden it!
this is how i'm gonna do it
I know this is gonna end up looking
amazing
so right now we are normalizing it
because we drill the holes ground it
doing so much to it especially after the
forging process which is very aggressive
itself a lot of stresses in the material
we want to equalize those stresses and
that is the normalizing process it also
achieves a refinement of the grain
structure material so that when we
harden this we end up as strong as
possible the smaller the grain structure
stronger it can be there is a point of
diminishing returns where the grain
structure is so small that it can't
harden but we want to get right to the
precipice before we lose that hardenability
hardenability! sounded great until then
see the pattern
okay the next step quenching it there's
a lot of pressure I know I had to go in
straight not wobble not hit the sides so
I donned my chins of concentration and
did my best what I didn't explain very
well was just how fast this was gonna
cool down so I explained that we want to
go in straight but I didn't at all
stress that we wanted to be very fast so
we're worried we don't know no no we don't
know it's got hard
I was not super fast the file is hard
if the file cuts this is not hard if the
file skates this is
rollercoaster of emotion. just
told us this is going in the oven
paprika little chili powder - gonna make
sure that you work it in yeah otherwise
flavor it's no good we've got that oven
said 195 and that'll just bake for about
a hour and a half. making dinner and. ohhhhh. how can you tell? you can't really. it looks really cool actually you
can see in that Damascus
everybody get your fingers in just look
at all night so it's day three we just
finished who I forgot Blade day three did the
bevel normalized the blade you're gonna
be wrong order no that's good order we
have done the bevels normalized it three
times hardened it tempered now we need
to do the rest of the finishing then
we're gonna work on our final fit up
cool it's exciting pressures on we can't
mess up at this point. no we cannot
crazy so Alec just ground this evenly and there's
still a flat right there there's a scribe
line Wow we go this bad boy ground up
now what we're gonna do is we're gonna
need to sand our flats once they're flat
we can then work on the fit up what we
need is something to help lubricate the
cut i'm gonna start working an angle like
this seems so satisfyin yeah it's really
satisfying
I love hand sanding
so what is the plan we are going in for
our very first test fit so right here
we're test fitting if the screw fits but
there's a whole lot of pieces and parts
that we need to file and sand and get
super precise so that everything fits together
love can you hold it up to me close real quick oh you took it out already you can see the test fit on alec's channel!
filing filing filing. keep that file filing. you're so good at rhyming.
oh yeah good thinking because i could think we need to remove a decent amount worth it to play it safe at this point
i think it's perfect and I'm so glad that I test
fitted before I kept on sanding were you about
to keep filing I was about to keep on
filing and it would have been bad yeah
yeah yeah time time to do the little gap
scary stuff before we do that should we
stand yes all right
you wanna tell the people what we're
doing next we are going to sand these
scales that we made because they scratched
this beautiful blade that I just filed for so long those jerks!
that looks smooth enough to try again
come on fingers ah oh that's good whoa clicks
nicely we now just need to file that
opening well one extra file stroke them
we need we can completely destroy the
whole time I think it's time to put on
our serious pants series pants gotta take off my silly pants
different kind of video serious pant that's a
bastard cut file here we go
one and a half right let's put it together
wait for it wait for it and we need to
do more filing so stressful every time
I lost the screw moment of truth do we
have the fit-up gosh I'm so nervous
freely swing out too yep yep yep I got
plenty shots of the knife but you guys are cute
we need to mask all the
critical areas special blacksmith nail
polish
while the blade sits in the acid we are
going to make our own little thumb
things technical term these guys so
we're gonna try out the lathe let's see
this goes oooo more tools yeah
No so many trials and tribulations
i'm recording that by the way ooo you can see it you can see it ah ok going in and now you just pull it out drip drip drip drip
alright then we can rinse it off you can almost see it was almost
there okay so we're gonna take the 2000
grit and we need to exactly follow the
scratch patterns that we made already
okay I'm gonna do the bevels oh my gosh
doesn't take much at all and it's very
easy to overdo oh my gosh this looks so
cool
that's insane this is amazing this is so
cool ah
oh you can see all the layers did you hit it haha i zoomed too much
so we
have all the components for the knife we
have the blade we have the body and we have the little thumb thingy now it's
time for final assembly before we grind
the secondary bevel event and then is that it? that's it. ahh!
okay here we go you got a little too excited at the end
there we go oh my gosh that's
crazy you got a nice little nice little
patch for yourself now
thank you guys so much for watching it
has been a blast hanging out in Alec's
shop we've learned so much I know you're
a handshake but i'm coming in for a hug definitely go check out Alec's
Channel he's been posting videos every
single day that we've been here Alec tell
us about your channel I'm a blacksmith i make 
youtube videos almost every single day in the shop
so make sure you go check it out there are loads of sparks, loads of fire, loads of fun, loads of learning
so fun can confirm it's awesome so definitely go subscribe to him subscribe to us if you haven't already
and again just check out our patreon at patreon dot com slash evan and katelyn if you want to see the rough cut and after-show
bye thanks for watching bye!
