Okay, we're on hole number two. We're going to double check see how my layout
work did. It looks a little better than the other one and remember we're going
to go to our small drill again and go all the way through.
Remember pump it a little bit. See how your chips release.
All right now if you look at your process sheet
it'll tell you, you remember that depth we went to so the heads below. It's a
different kind of screw this is called a flathead screw, so in order to get that
to drop down in there below, we're going to use this countersink right here.
We're deep enough now on that hole number two. Let's look at our process
sheet, it says hole number three spot drill and drill through with the next
largest drill. This is your next largest drill, okay.
So remove your countersink put your spotting drill in, okay. We're going to
make our move now. Let's go back and look at our print and hole number three is 2
and 1/2 inches from that starting edge, so we're going to move from 1.625
to two and 1/2, okay. We're at 2.50 which is two
and a half and we are ready to spot. Just see how good our layout was again.
Our drawing is off a little bit the spotting but we know we're right on the
hole so we're going to go ahead and continue.
Okay, we've got our spot we're going to go to our next largest drill.
Okay, we want to countersink that hole now that hole is going to get threads in
it later on and when you're going to thread a hole you want a pretty good
sized bevel countersink chamfer whichever you want to count it.
Okay all right, so much for hole number three. Who's good at basic math? Good
question right? We're gonna have to do a little bit basic math. I've got some
basic calculation when we drop down to hole number four. Okay, which is going to
be a larger hole? We're actually moving away from the original location so the
difference between, that doing the basic math - we're going to move down 0.687
Okay 0.6875 and that is because of the direction
you're moving. So it'll show - on your readout, okay. And again I got that by
doing a little bit of basic math, okay. Let's go ahead and make our move this
direction.
Now you see we got a minus sign on there.
All right we're on the pilot drill for hole number four and then we're going to
after that we're going to go to the larger drill and then we're going to
ream it.
Let's tighten that up a little bit more
now. We're going to countersink that hole again because we're going to go in there
with a reamer after the drill and we want to make sure that we got a pretty
good countersink on there.
Okay, now we're going to ream that whole, what a reamer is actually the drilled
hole exaggerated sorta is rough number one it's hard to hold a size on it and
so we'll use a reamer to finish it up which gives us a straighter hole and a
better finish on the hole. So there we are if you could see that you would see
that it's a better finish hole we're going to be ready to move to hole number
five. So we are going to back direction again. We're going to go back to the
number five hole which is at the same dimension on the x-axis as what hole
number one was. Okay, if you remember hole number one on the x-axis
was 0.750 and that's where we're at right now we went back to that.
So spot the hole. This is called a pilot drill again. Again we're gonna go through.
Okay, we're going to go back to our larger drill now. Okay, again we're going
to countersink that hole.
Okay, and then we're going to do the reaming again like we did on hole number four.
All right we are now complete with the holes on there,
so our next process will be we're going to go to the drill press and countersink
all those holes on the backside because they'll have a pretty good sized burn on them.