Hello everyone welcome back to PJ Chen Design Channel. A lot of jewelry
inspiration is from old technique. One of the technique is called "granulation". I
would like to show you how to arrange those beads in to your jewelry. Hi, I'm PJ Chen,
an authorized Rhino trainer. This channel is about sharing Rhino3D knowledge to
students and 3d model professionals learning various Rhino 3D techniques. Are
you ready? let's get started.
For you may not know what is granulation in the
jewelry, you can go to the Google and search for it. Basically it is a lot of
small tiny beads covered on the area.The surface area it could be
completely covered, or it could be covered as some sort of a pattern. This
inspiration has been using in a lot of contemporary jewelry (design) so we would like to
talk about how we can arrange the beads into the jewelry for today's tutorial.
Let's go back to the Rhino. We would like to start our bangle by drawing
an ellipse. Let's go to snapping into the center and one of the length we want to
type it is 30 which is gonna make 60 mm over all of this oval bangle, and on the
top overall I would like to get 55, so you can divide it by 2 doing a
calculation, or you can put a here 55 divided by 2. Then Rhino will
give you you know exact number on it. Alright so this bangle we need to have an
opening. The opening design is really depends on what you feel it should be.
It's really... there's no set size for it however if it is for men's and for
women's the opening will be slightly different because
the wrist you're going to put it on, so we're gonna draw a straight line over
there and mirror to the other side, and we will like to trim the bottom off, so I
no longer need those two lines so basically what we get is the open curve
there. Now with this curve, I'm going to move it up roughly. It's really up to
you how thick you'll you would like to have, but I'm basically gonna move up
five on the top, and have that one mirror to the other side. so it's kind
of give us even out space there. and then how do I close this form, I'm going to
use the blend tool under the Curve, you can use the blend and you will blend from
here to here. and then you click OK and from here to here and you click OK
alright so now this is our overall structure for the bracelet and I'm going
to join them. if you take a look on the front of you you're gonna notice the way
we blend it the very end part is really straight there, so what I like to do is
I'm going to draw another ellipse that is exactly the same size for the
previously ellipse we draw. So let's use the ellipse tool. We want to snapping
into a quadrant to quadrant, and also on the top is quadrant as well. Let's go to
the perspective and then we wanted to have a surface right there, so we are
going to use the curve we just draw and extrude it curves straight. Okay and from
there, we can use the this one that we have and we use the command
it's called "Pull", which is living next to the "Project" (command) and we want to pull back
to this surface. Now if we look at the front view, you're going to notice that it's
pulled back to the surface right there. Okay so we no longer need this old one
So now the curve is completing wrapping around the surface, we're going
to use that curve and trim the extra that we don't need so now we have this
surface here. Okay, with this surface, I would like to do a little bit change on
the surface, first of all.... oh.... this is actually a really good example, you kind
of notice my surface breaking in the half and I do like it to have a
continual piece is easier for me to edit The reason it happened like that is
because you have a seam here. okay and let's go back few more steps, because if
you see this surface right there you're going to see one is a little bit darker
and that is where when I start making my curve, the first place I clicked is where
the seam is going to be, okay. so we need to move the seam to the
bottom, so let's go ahead and move. Adjust the seam and move it. Snapping into the
bottom. So in that case, when we trim, we won't trim it where the seam is.
Let's use the trim again. Using this curve as a cutting object, and if we want
to trim the rest of it. okay so now we are having completely piece okay, and
this is.... sometime it's really important to do this you will have a less problem
later on to do a model editing, okay. So to making a thickness, I'm going to use the
surface tool and then you have the ones called "Offset Surface" so we are
going to pick up this surface tool, and we want to offset. Let's say.... distance to be
1.3 okay and we don't want to be solid, we just want to
have another surface on the top. okay so now we have this surface on the top we
are going to create the edge. Let me go back one step here. The
reason I do not wanted to have the the edge to be solid is.... let's say if we
have "solid=yes", then we have this really straight wall on the top, right. We
don't want this straight, because it's not comfortable, so what I did is instead
of making "solid=no", and then I have this surface. So how do I build
all the rim around it is I'm going to use the blend tool. I'm going to blend
from this edge to this edge. Okay so right here, you can get a really really smooth
surface. I can also move it down a little bit so it's not that puffy, so we just
wanted to get something a little bit round. The form of this bangle maybe too
flat, and I would like to get a little bit like hill at the middle of the
bangle, so what I can do is I can go ahead and turn on the control point and
try to drag the control point a little bit, and all of a sudden you see when I
turn on a control point, this is something like the control points doesn't
go on the surfaces. It goes all the way to where the original surface we
cut it from. The command you're going to use is called "Shrink Trim Surface" so we
want to shrink this surface there. Now it's going back to only on this surface.
To turn on the control points, actually, it is not much for me to turn on, so I'm
going to rebuild this surface. I'm going to rebuild
it's about U is 10, V is 8, and let's click OK on it. So now we are
looking at the topview, I'm going to pick up all the middle-two together.
alright and I'm going to make them coming out a little bit, but where is on
the bottom, I'm just gonna keep it flat. Alright so this is my design. Next what
we can do is try to scale it and if you holding the
SHIFT key and then you can 3D scale those points. So now let's take a
look on the perspective. It looks nice. Alright so then I'm going to escape so
the next step is how we are going to arrange the beads, and to arrange the beads, I
need to have curve to put it on. So next step, what we'd like to do is we're
still dealing with this surface. T command we are going to use is under the
"Curve" you have "curve from the object" and this command called "contour". Let's go
ahead to select the surface we want to contour, and giving a direction from
quadrant to quadrant on the top view. And then type distance for 1, which
you already have it there, and you hit Enter, then you will get this curve right
here. I have already make them into the blue
color. Let's ta (view), so those are the curve they
are one millimeter distance from each other
and they actually on exact the surface. Okay so the first things I would like to
do is to create my first bead. My bead is going to snapping into the end point or
the quadrant at exactly at this point. The diameter I'm going to use is 0.6
millimeter right, and that's really tiny beads over there okay.
The command you're going to use to have this bead go around entire curve it's
called "Array along curve" so the object is going to be array, it's going to be this
bead and then ENTER, then you will click on here, we don't know how many do we
need it so I'm just gonna try 240 to guess and see how it look like alright
so they look pretty well it depends on the design that you
like you can have it like really close to each other or it's almost like
touching each other. So let's do one more time we are going to select the curve, and
then, this time I want to use the distance because everything's else I
would like to have the distance all the same. So in this case I'm gonna just set
it for 0.7. it's easier for us to operate it okay.
so they look nice all the way to the other side in the distance is 0.7.
and that 0.7 is going to be used on the rest of the distance, so I'm going
to copy this sphere from the center of this sphere, and I'm going to snapping into
the endpoint of each contour curve that we have. Snapping here and here okay and
with that we are going to use the command again is "array along the curve"
every time we're gonna pick up the ball and, this is the path and we're gonna use
0.7 exactly on each of them, so they will look exactly the same
distance, and we're gonna do that for all of them
Alright so now we have the beads are on half of the side. Remember you don't want
to have the beads hanging there. It doesn't look good, so let's go ahead to delete
those beads over here. Okay and then we want to delete the beads on the other side as
well as also they are not hanging to the edge .You should be fine okay so now with
this beads there. Let's go ahead to hide the curves. We select all the curves and we
hit "hide". then we want to select all the surface together, and then we want to
join them together. so now we have the solid piece. so what we need to do next
is to select all the beads beside the middle one, and we want to mirror it to
the other side. rest of a job will be boolean unit together. I hope you enjoy
the video today. Please like and comment and please share the video. This is
really important for me to continue making free video for you. Thank you for
watching I'll see you next Monday