- [Instructor] The hole function is
an incredibly powerful tool.
Within the whole function you have several types
and ways to create holes.
You'll notice I come in by default it goes to general hole.
This is just a general hole size,
you specify the size that you want
and you're various dimensions, done.
You can also specify a drill hole size,
a screw clearance hole, threaded hole,
or have a hole series.
Now if I go into drill size you'll note
that when I come down and specify the size
they are all preselected.
So if I wanted, let's say, a 12 millimeter inch hole
you'll notice the diameter is automatically
set to 12 millimeter.
I pick where I want this placed
and this is where it's very important again
to pay attention to your selection intent.
I'm gonna change this from feature point
and I'm gonna say single point
and I'm gonna come over here to specify.
I want to make sure I have arcs center.
In this case I want to go to the arc center of this edge.
So I'll just highlight over the edge,
get the arc center point to show up,
come over and pick it.
As soon as I pick it what's going to happen
is the system is going to put in a preview for the hole.
This is a current size, depth,
and tip angle of the hole.
You'll notice that if I change this from value
and just say through body
the body updates and changes.
The hole direction is currently set normal to face,
I'm gonna come back and talk about that.
If you have a tooling vector that you need to specify
you can come over here and say along a vector
and use that vector.
Right now it's just going perpendicular or normal
to the face at that point that I have specified.
Also depending on the type of hole that you're creating,
because I have a drill size hole
I can do start and end chamfers, I have those enabled.
Then just below that I have booleans.
It will automatically subtract the body.
I can have it setup so the body doesn't get subtracted,
but in this case I do want to subtract it
and select okay.
As you can see it puts the hole in
with my start and end chamfers
and in the part navigator you'll see it tells you
it's a drill size.
So it indicates the type of hole that was created.
I'm gonna double click on this,
I'm gonna go back in.
You'll notice that I also have various other options here.
So I have exact, I have a custom fit,
I can go in here, yeah I start out with a 12, but maybe
I want it a little bit bigger, a little bit smaller.
I can also modify the chamfers
as well once I go to custom.
If I come down to my general hole once again
it throws up a little warning,
a change in hole type may cause change in hole dimensions.
Remember when I selected the drill size
that drill size is based off of an actual
drill size based off of the standard
that controls those drill sizes.
Here when I go into a general hole
I may have a different value.
I can come in here now and make
whatever changes I want to this
and you'll see the little warning goes away.
So based off of what you have selected
you may get little flags, little warnings,
you may change something, get another warning.
Here I also have the ability
because it's no longer just a simple drill size
now it's a general hole I have
counterbored, countersunk, tapered.
So if you need a counterbore
you can come over here to change that counterbore.
What's the c-bore diameter, what's my c-bore depth,
there is the diameter of my hole,
and it's going all the way through the body.
Select okay.
I'm gonna go back in there and make another modification
to this hole, so I'll just double click on
what says counterbored hole in the tree now.
Once again if I change this, and this time I'm gonna go to
screw clearance hole.
You'll notice change in hole type,
this may cause a change in hole dimensions.
Again, this system is going to automatically
change the hole size because now I'm using an actual
standardized screw clearance hole,
which that standardized screw clearance hole
is more than likely going to have a different size
than what I have specified previously.
So here I can come in and you'll notice under settings
down at the bottom I also have the ability to change
the standard that I'm using.
So if I want a metric inch,
so whatever that may be I can come in here and change that.
Based off of whatever I specify
you'll get the different values for
that specific type of hole based off, again, that standard.
So if I say I want an M10 with a
normal fit it'll automatically size that M10
with a normal fit, so this is the
diameter that it's gonna put in there.
If I want a close fit you notice it
tightens it up a little bit, if I want a loose fit
it adds another millimeter
and again I can add my start and end chamfers.
Something else that you can do
with this hole function and
this is one of those things that
you just have to be careful with it.
You want to make sure, A: that you just don't pick
points just here, there, everywhere.
In this case when I pick this point
and place it in at the center it's
attached to that center point.
What I've seen people do, and again this is a warning to you
what I've seen people do is they've gone in
and they've used what's called point on face
as their selection intent.
If I use point on face and I just pick a random point
that's it, that random point is there,
you can't move that, you can't change that,
it's a fixed point on that face
when you use this option.
So if I come in here and pick another point
that's again a fixed point.
If that's what you want great go for it,
but real world chances are that's not what you want.
What you really want, and I'm just gonna go ahead and
hit cancel on this, I'm gonna delete this hole,
I'm gonna go back into the hole function.
What you really want to do is
if you don't have a fixed point that you can use
that makes sense like the center point or something
and if i just simply pick this top face
to place that hole what it does
is it goes into the sketcher.
You'll notice that it automatically took me in there.
The reason why I went into the sketcher this time
is because I did not have that selection intent
for it to place it on the face.
What it does is it creates a sketch on the face
and this is where I can now make changes
to that hole center point.
So I have my constraints, so if I have
several points I can put in several points.
I can now dimension these and constrain these.
So I'll just go ahead and constrain these.
Now this is telling me this
dialogue is designed for special cases,
so if I want to, I just went into my
geometric constraint, I'm just gonna pick
all of these points and I want to put them all on curve.
I'm gonna pick this point, this point,
this point to that curve.
Then I'm gonna rapid dimension.
Put the last dimension in,
finish, and wherever I have a point
specified in that sketch
it's going to create that hole.
Select okay, and there is my series of holes.
One thing else to note when I am generating a hole
it I did have a point, let's say right on
one cylindrical face or surface that has
any sort of curvature
I am gonna turn on point on face just for an example here
it will go normal to those faces.
So you don't necessarily have to draw a tooling vector.
A lot of times in aerospace land
where they have point and a vector a point and a vector
and that vector is normal to the surface
here you no longer necessarily have to
use that vector because the system is very intelligent
and it knows that I am going to go normal to surface
at whatever point I specify.
So the only issue is is you'd have to
make sure you have your points setup correctly
on that face and then just pick all the points that you want
and the system again is really really smart.
It'll go through and as you can see
it'll basically put those holes in.
In this case I had it
going all the way through in all directions.
I'm just gonna undo that and go back into the hole function,
I'm gonna bring this up a little bit.
So if you do have a tooling direction
that you did want those to go through once again
you can come over here, use your along a vector
and please don't forget
that you have all of your settings down here.
As a reminder this is only available
when I'm using something other than a general hole.
If I go to general hole you'll notice that there's no
predefined standard hole sizes
because this is a general hole, this is allowing you
to define everything about that hole, so
again this menu morphs, it changes,
there's a lot of information in there
as far as basically pretty much any hole size that you want.
If it's in a standard somewhere it's basically in here.
You can go find it, it's just making sure you
have everything setup correctly.
So if I wanted a threaded hole,
once I change that you'll notice that I have
the different types of threads.
So it's in there it's just you have to make sure
you have everything setup correctly.
So that whole function, very powerful,
extremely comprehensive.
If you're not getting what you want
chances are you just have to make sure you're using
the correct type of hole
and you have the standard set correctly.