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Ginkgo Leaf Earring 3D Model in Rhino 6: Jewelry CAD Design Tutorial #79

Ginkgo Leaf Earring 3D Model in Rhino 6: Jewelry CAD Design Tutorial #79


Hello everyone, welcome back to PJ Chen
Design. I would like to show you today a two different ways to make this ginkgo
leaf type of earrings. Are you ready? Let’s get started! We will need to have a leaf shape to
trace over. So go to the google. Type Ginkgo leaf here, and that way can help you
to find all different kind of the leaves, and the shape that you like. So pick one
you like, and download it to import into the Rhino. So we’re gonna use the
command called “Picture”, and we can bring in any of the leaf that we found that we
like, and you can position into any angle that you like. You don’t need to have
it exactly the same, but we just gonna use as a guideline. For example, this is
definitely off right there, so I’m going to trace anyway for something really
close, and I’ll change it later. so I’m gonna start here, holding my SHIFT and
kind of go over with the shape. Try to get as close, but you don’t have to get
into every tiny corner. In fact, you want to avoid really sharp corner. We want
something really nice and round for the jewelry casting purpose. You can get it
really tight, if you want to, but after polish, if this is a really small,
it probably not gonna see anyway. So we just want to get an impression of the
Ginkgo leaf. I’m trying to trace something and come over here kind of
imagine what that look like. You wanted to end to be a line, so make sure the
Smart Track is on, so you can snapping here and holding the SHIFT so that will
be the same high possible. I didn’t trace it correctly so I’m just gonna move it
down a little bit. Now this is the shape that we have. We no longer need
this one, so let’s go ahead to hide the background. Now you’re
looking at this one, and go ahead to adjust any of the curve, that it’s going
to look better on your design. Again, we are using it for reference, not saying
that we have to get it exactly the same. as long as it looks like a ginkgo leaf.
I’m going to move it more close to what I think the center is, and try to
modify those curve and to make it look nicer, and a little bit more
symmetrical. Again you can adjust those leaf, and see which you
may not want it comes in that much like, that may be too much there.
Anyway doing your own design and they are two ways I wanted to show you.
The first way, we are going to adjust the control point. So I need
to make some adjustment on those curve. First of all, I’m going to use the split
command with the point, and let’s split somewhere about right here, and right
here. Then I have it into three different
curves. Second, I’m going to draw a straight line somewhere about here. Go
all the way pass the lowest part, and then you can make it as long as
you want. and the third one we do need to have this extended longer,
so let’s go ahead to use the curve- extend the curve, and we want to extend
straight. So let’s pick the line. Let’s go to do something like that. Do it one
more time, we want to do end. And go to do something like that. So you may
wonder, why am I doing this, because I need to creating the surface that is bigger
than this area, so I can trim it later. Now we have line 1, line 2, line 3.
So we are going to use the “loft” command, and then we’re going to go from
here to here to here. Now you look at that this
area, it has some extra surface there. the reason is the curve that we have right
here on the first one. It was extended so that actually they are two curves there.
so the way of the Rhino calculation will make extra surface there. To solve
that problem, we just need to pick up those two, and we are going to use the
commands called “Rebuild”, and we want to rebuild to 20 of them.
I think it’s good it’s because it’s doesn’t changing way too much okay so
we’re gonna do 20 of them, and let’s do the “Loft” command one more time. One, two,
three, so now we have something like this. in order to get that wavy kind of surface, we need to have a lot more control
points, so I gonna rebuild a surface and let’s rebuild it to 19 by 20 so
that’s definitely enough make sure the degree is equal 3 on both U and V,
and we click OK. Now we have if we want to turn on a control point,
and again you can make it a lot more, if you want to. Let’s take a look on
this perspective view. They are flat and we need to make them like skirt or
like a ripple effect, so I’m going to pick up any of the point that I think I
want them to go up. It doesn’t have to go in the certain order. You can have every
others, or whatever that you think that will work better, and I kind of render
and pick up some point, and I want to select the point all the way to the top.
So the way is going to this “selection tool”. You have selecting point and you
want to select the either U or V, and in this case wanna select to the V.
Now they are selected. Let’s go ahead to deselect anything’s over there, and let’s
take a look on other view. Now we are at the right view.
I’m simply just kind of use the rotate tool, and I’m going to rotate it a little
bit up like this. Now we have something wavy like that, and see if that
is what you want. What we can do also is I’m going to use that to trim those
extra there, and if you cannot trim it’s probably because we did a rebuild,
so this point is not touching the line anymore. So what you need to do is moving
this line with the “near” is on. On the Osnap, and snapping into the edge. let’s
check on the other side. It’s the same. It’s not on the right place. So let’s go
ahead and snapping into the “near” point. I may want to have this one
go inside as well. You have something like that. Now what we
need to do is pick up this curve and then we trim this one over here. Now
we have this. If it is not high enough, you can kind of make a bump here,
If you want to. So this is the first way to make this wavy type of organic
looking ginkgo leaf. Let’s take a look on the second way. The second way
that we want to creating is very different from the first one. We are
going to use the sweep, so we need to create the cross section in some areas.
The first things I would like to do is creating a cross section with the
“arc” tool. I’m gonna snapping into the end point here, end point here. and I’m gonna
come over to the left view, and click on that, so you can see there’s a half round
there. I’m going to create another half round somewhere around here, and then
again, I want to come over here. So make the depth there. Let’s saying that
a surface from this point to this point it should be round instead of flat. A lot
like the first one. The second things we wanted to do is creating more shape in
between. I’m gonna come over here, and create some sort of shape right here for
whatever that’s going to look good to you, and I’m gonna do one more time
roughly about here. something like this. the third one we’re gonna use the outline. Basically, all we need to do
is using the split tool, and split somewhere here to here. So this
is will be the third one. One thing we will need to do is to
make sure that all of this has the same point. It’s easier for us to edit it.
We’re gonna select all of them, and we’re gonna use the “rebuild” and
let’s rebuilt to 20 look good to me for all of them. Even though this is
gonna be a little bit rounded, but that’s fine. We’re gonna click on OK, and this
will be our new shape.The way we are going to do is we’re gonna pick up
those point individually, like whatever is spontaneous or whatever it’s gonna
fit into your design, and I’m going to gradually to bring it up. So I’m
going to bring this up for 0.5 mm You can see it’s kind of
giving some wavy structure or wavy line there. This one too. I’m going to pick up….
you don’t have to pick up exactly the same point from the first one, because
it’s going to be organic, so just do a few tests and see which one works for
you. This one I’m going to bring up instead of 0.5, I
may want to bring up for 0.7. Okay so a little bit higher. The one over here
again I going to I’m going to pick up the points. so let’s
go here, here, here, here. Okay so that that’s gonna make it really organic
because the point that I picking up is not align with the previous one.
This one I want to go up to 0.9 Okay so it’s kind of gradually
changing, I would just want to make sure that this is not too much of a bump,
because we were having point five at the first one, so I want to make sure it’s
less than point five on the high. Now we have something like this.Let’s
do a test. The command we’re going to use is called “Sweep 2 Rail”. This is going to
be the rail one, this will be a rail two. You we’re gonna go from here, here, here,
here, and here. Now we have this option you can maintain the high.
So it’s not like having to too much bump there, and then this is what we’re going
to get, and again you can make it higher lower, more organic or something like
that. Be really careful I might have the
surface folding here, so I might need to do it again. Maybe need to
move those points, okay so I fixed that by redoing moving the point and redo
again, so this will be our surface. To turn it into the solid we just need to
mirror that to the other side, and you will have the gap in between. For this
gap what we wanted to do is we want to use the curve that is fitting exactly
the profile, and let’s go to the surface and let’s do “extrude curve-straight”
alright so we need to use this and that those two curve to trim the area for
this one, and for this one. So that leave the something in the middle.
And we can just go ahead and join it and the same time don’t forget the top.
it is still empty over there, so we need to cap this one.
So double-check this is a close solid polished surface here on the
property. After that you can set some bezel set stones. if you’re interesting
about a stone setting, I have a whole course talking about 10-11
different type of a setting. I’ll put the link below and also on the right top
corner, you’re gonna get the link. So we can make this into a earring, I hope you
enjoyed. Thank you for watching. Leave comments, let me know how you’re doing or
anything else that you would like to see in the channel. Thank you and I will see
you next.

16 thoughts on “Ginkgo Leaf Earring 3D Model in Rhino 6: Jewelry CAD Design Tutorial #79”

  1. the outer edge of the leaf should not be flat. this does not look good! you need to find a way to make it rounded. organic.

  2. I am just getting started with Rhino. Really great videos! By watching these and reading the training pdf's from McNeel I am making progress. Thank you sir.

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