- [Instructor] Previously, we created the rear dropout part
and this is fairly simple
but as we said, you can adjust this
to suit your own needs.
In this video, we'll be adding this to the main frame
and then adjusting the rest of the frame to suit it.
So open the bike assembly
that we've been working on
and it should look something like this.
The dropout's going to fit into this back corner here
and we're going to have to trim away a little bit
of the rear frame there
to get it to fit properly.
Go to the Assembly tab and click on Insert Components.
And then if you've got the dropout part open,
it should appear here.
If not, you can click Browse and find it on your computer.
So select the part
and let's put it in roughly the right position here.
And then let's rotate it around
to roughly the correct orientation.
So you can move it around by left clicking and dragging.
You can rotate it by right clicking and dragging.
So let's put it roughly there
and then let's fix it exactly in place.
Firstly, let's expand the part in the part's tree,
so it should be the latest part there, the rear dropout.
And then find the origin of the part
and left click to select that.
Then move your model around, hold down Control
and also select the endpoint of that axle line
and then release Control and add a coincident relation.
So those two points are now fixed together.
But we can still move the part around like this.
So we need to fix it in place with some more mates.
First, let's set the angle.
So choose one of these top edges of the dropout.
You might need to move it around a little bit more
to be able to see them.
So choose one of these top edges
and then move your model around a bit,
maybe zoom out a bit
and then also choose that seat stay line.
And then add a parallel relation,
which is this one.
So now it's quite hard to see
but if we zoom in, and we select these tubes,
and make them semitransparent,
we can see the dropout is kind of fixed
but we can still spin it around like this.
So we need to add one more mate.
Let's choose that front face
and then also choose the right plane of the assembly.
And then let's add a parallel mate.
And now you can see it moved into position
and that's fixed in place
and we can see those arms go inside the tubes
and that all seems to fit quite nicely.
But there's a few final things that we need to do.
Firstly, if you look at the dropout,
this raised face should actually be on the inside.
So if you modeled up the other side first
and this raised part is on the inside.
Then that's fine, you don't need to make any changes.
If yours looks like my video,
then click on the dropout part
and open the part and we just need to flip this raised face
onto the other side.
So to do this, we can just edit the face feature.
Click on it and press Edit Feature.
And then just flip the direction here
and we also need to add five due to the thickness
of the dropout.
So we're just going to have the face
on the other side instead.
And then also we need to just adjust this cut.
So I'm going to edit the axle cut feature.
I'm going to change it to through all, both
just so that cuts through everything.
So now if we go back to the assembly,
we can see we've now got that raised face
on the inside.
The next thing we need to look at
is when we set this axle distance,
which was 142 millimeters,
we based that on the distance
between the dropout but actually,
if you look at where the axle ends,
we didn't take into account the thickness
of the dropouts.
So if I get the measure tool,
and I measure from the center of the bike
to that face, it should be 71 millimeters,
half of 142 that we set.
But actually, it's 66
because of the thickness of the dropout.
So we need to increase the length of the axle line
to account for that.
So we need to add another five millimeters on each side
but luckily, because of the way we set up the model,
this is really easy to do.
All we have to do is select that axle line
and then double click on it
and then double click on this dimension
and adjust it from 142 to 152.
So it's an extra five millimeters on both sides.
And then exit the sketch
and now if we press Control + B to rebuild,
you see everything automatically updates.
So by taking that time initially
to set up all of these sketches,
it actually saves us a lot of time later on
because we can make changes like this really easily.
So then finally, the last thing we need to do
is just cut away some material on these tubes
to allow the dropout to actually fit there.
So let's start with this one.
Going to click on the tube
and I'm going to press Edit Part.
And then I'm just going to select that end face
and start a sketch by pressing Sketch.
Going to choose the outer face
and press Convert Entities.
So now we have a circle the size of that outer diameter
and we can cut away some material.
I'm going to go to Features, Extruded Cut,
and let's have a look how much we should cut.
So it looks like about 25 should work well.
Let's see how that looks.
So if we exit editing the part, that looks good.
We've still got this lug inside the tube
but we've got enough space for the drop out there.
So let's do the same with this tube as well.
I'm going to click on it and press Edit Part.
And then start a sketch on that end face.
And then select the outer edge
and press Convert Entities
and then just go to Features, Extruded Cut
and we'll also cut 25 and see how that looks.
So that looks good.
If we exit editing,
then that also looks good.
So I'm just going to click on these and change them back
to a solid view.
And if we zoom out, that looks really good.
So at this point, we can save the model.
On the physical frame, as we said,
these tubes might be tapered down a little
or maybe not or they could be notched by hand
to get the optimum way to get the best welding around here.
But of the sake of this model,
I think this looks really good
and we can see how that's going to hold the wheel.