So our next step is we're ready to start looking at our process sheet and make a
movements to all the holes on there. I've already done with an edge-finder prior
to this, picking up both edges, okay. So what I'm going to do is just to see if the layout was good, was it off? Just spot it a little bit and I don't know if you
can get a good look at it, but if you look at it that hole does not look
exactly how the lines were. So my layout was not exactly right but it's a
visual thing and that's the reason why we do it with an edge finder. So I feel
comfortable now that we are in the right place, okay.
Drilling now, and we're going to drill hole number one. If you look at your
process sheet it says hole number one spot drill and then drill through with
the smallest drill. We call this a drill block everything in this drill block
other than the tap we will use, okay. So they're saying the smallest drill, okay,
after the spot drill. So we're going to go ahead and spot drill. All right were
ready to spot drill now.
Okay, that's enough of the spot drill there. Sometimes we'll go down further to
where that taper is on there but on this particular small drill we're not going
to go any deeper than that, okay. So now we're going to shut off, break, put our
other drill in there. Now it says use the smallest drill in the set there which is
going to be this right here. And the process sheet says drill through.
Tighten up your chuck, make sure we're running clockwise, right.
All right when you drill you want to kind of pump it a little bit, that means
go let the chips release come down a little bit more, a little bit more, okay.
A little bit more, when you think you're getting close to going through, watch
your pressure just kind of lighten up. There we go - we broke through now, okay.
The next thing it says we're going to counterbore that hole. This is your
counterbore and it tells you to go deep enough that this screw head right here
is below the top surface, okay. So it's a little bit trial and error.
So we're going to come down just like it was a drill.
All right let's see if were deep enough.
Yep, we're good. All right now what I like to do is....
it's not that much but I always like to put a little bit of a what we call a chamfer on
the holes, all of them, and later on we'll do the back side on all the holes. So I'm
just going to come down and break that edge a little bit. That's it, if you can
probably can't get a good look at that but we put a slight chamfer on there.
All right, now we're going to go back to our next hole, hole number two, and we're
going to look at our print and it says we're going to move to one and five
eights, okay, which is 1.625 and we're going to, it says the
small drill again.
We're going to spot it first,
all right, so let's make our move now. This hole was at 0.750 now, we got a,
once we drill that first hole and pick up our edges like we did we can look at
our print, okay. So now we're not going to zero anything there. We're going to move
from 0.750 which we're on our readout right now and we're
going to move to one and five eights which is 1.625, right.
All right there we are 1.625