hello everyone welcome back to PJ Chen Design Channel
Today we would like to
talk about is using Rhino3D
software to create this single surface.
It is a continuous surface so allow you
to edit and change the surface to make a
really organic form. Are you ready? Let's get started!
The focus of our tutorial today is the
surface, so we are now working any part
of the stone setting, but I will put the
link right here below to show you this
type of stone setting, and how you can
arrange the prong and everything so
Let's start from fresh. We are going
to bring up the sphere, and for whatever
size star you preferred to. This is not
going to be 3D print. Just talking about
the model, so any size that you would
like to work on is fine. Let's go ahead to rebuild this ball because
the starfish has a 5 points, so I'm going
to rebuild this one. Let's say into 10.
so that way we were able to pull it into
the 5 points. Alright and let's turn on
a control point. Very quickly. first
things we need to do is to decide
where it's going to come out something
like this, and if you have a hard time to
pick it up the points, you can actually
use the wireframe, so you won't select
any part that you don't like, so let me
go back with this one. so every other
control points, you want to hold the SHIFT
and to select them like this way, and
very last one, so once we have this we
are going to use the Gumball of the scale
tool to do the 3D scaling. So very quickly
I'll get something like that.
Alright, and then with this you have
something in the middle, you might want
them to come in a little bit there, so
I'm going to select all the bottom all
the one that I didn't select, and kind of
with dragging a little bit more, so you
get something like that, now if you feel
like this is way to point it and you do
want them to be a little bit rounder, we can do
rebuild this surface one more
time, so instead of having only 10, I'd
like to have 20 this time, and what it
does is it creates two more control
point on that each side of the tips, so
right now we have this, we can kind of
move it back a little bit and because
it's organic form, I actually like to
move it individually so some of them
will be more pointed, and some of them
will be a little bit more rounded, and
you can do your own design here. I'm just
gonna quickly to do something look like
this, and of course right in the middle
for example like this, you might want
it to come in a little bit. On the opposite
side you want to come in a little bit, so
you can spend some time to play with it
to make it more like a nature starfish.
and that way you know it don't it won't
look like computer made. It has a little
bit more of the organic look.
Alright so you go ahead and doing all
of things like this, maybe those two
coming down a little bit.
So while you're tweaking let's take a
look side view now it looked like this.
this doesn't look like starfish, it look like some sort
of tropical fruit, star fruit.
so if you happen wanting to make a star fruit
this is the way to do it, but back to our
point. The bottom of our starfish it has
to be flat, right? So I'm going to pick up
everything on the bottom on my front
view, I'm gonna use the command called
set point "Setpt", and you will have the
dialog coming up like this. We do want
all the point aligned to the z-axis,
which they has to look flat on the
z-axis, so I'm going to uncheck X, and
check Y, and make sure my front view right
here is active, and I click OK.
so now everything is gonna follow my mouse, I'm just gonna click on
whatever I think they should be.
Alright, same thing is going to happen at
the top, so I'm going to select all those
points at the top again, doing the same
command "setpt", so you have set at the
Z. Now on the top, they want it to be flat
too, so if we look at this kind of notice
that they will be flat. I do want to have
this looking really chunky on this
design, so we're on the side of the tip
I'm going to select all of them and
remember holding the SHIFT
key, and then I'm gonna use the Gumball
to scale it down to make those a little
bit more pointed. Alright and then take
a look on that, and see if that is what
you are looking for. In order to have the
stone setting like my tutorial on
earlier simple there. that you have the
stone, and actually if I turn off this
and the prongs, you kind of see the stones
are actually sitting into a lower
position, you kind of cave in there and
that's where my stone is going to set.
Alright, if you use the boolean difference
to create a channel and
use the boolean different then your
you'll have a really harsh edges and
that's not we are looking for, so what
I'm going to do one more time is I'm
going to turn on my control point and
this time I want to be carefully to
select the things on the top, so let's go
to the top view, then select this point,
this point, and sometimes if you
accidentally to click an entire surface
that's okay because we can hold the
CTRL and deselect it. Alright so I'm
gonna do one and then I will fast-forward
for the rest of the 4, then I will
hold the control to deselect anything
under it so I won't select that all you
need to do is simply just pull down this
Gumball there, so you will have you know a
dip in there. Alright so right now I'm
going to fast forward to show you the faster way
Alright so we get that done, if you are
going to have a storm or anything later
on you wanna boolean in this area that
probably will be fine, but if you're
gonna leave it like that. That may cause
the problem when you try to 3d print
because it all coming into one point so
this is what I will suggest you turn on
the control point one more time, Let's go
to the top view and that's select all
the points in the middle, and holding the
CTRL key deselect the things on the
bottom, we want them to be the same level
so let's do one more time, set points, "Setpt"
on the command bar and we want to make
sure the front view is active and then
we want to go to set Z, so I want
to put it somewhere in between so it's
like smoothly come out it doesn't it
doesn't go like crazy it come out so if
you take a look on this at the render
view you see this is a lot more smoother
and then we can do the stone setting
right there, so now we have this done but
it looked very stiff it looked like
Hardee's logo so we want to make it more natural-looking
so they command you're going to use
is called "Maelstorm", and then it will
ask you to choose the one you want to
deform, and then it's the center of
it. so we click into the center now, it's
going to ask you to have two circle so
that's say this is outside circle, this
is inside circle, what it does is you can
twist it deform it more like a fan
style, but you don't want to get too
crazy on that. We just want them to twist
just a little bit like this, so it give
it more of the organic form but if you
do too much that will looks really weird.
so then we will get something more
natural-looking instead of like a stiff
starfish. You can continue to edit if you
want to so it doesn't look to
complicated but you can see now we have...
if we turn on the points, It's a lot more to edit okay
To reduce the control point what you can do
is you can "rebuild" this guy and then try
to reduce the control point back to 20 and 10 so that way you can
continue to edit into the way you like.
Maybe this is too much of the turn, so I
want to turn on the control point and
have this one it's kind of moving back a
little bit, so it's it's not like
everybody turning almost the same angle.
or maybe this is too pointed, so I want
to move it back a little bit, so that way
you can get in really organic looking
starfish, so that is the tutorial today
for how to build a single surface for a
starfish. I hope you liked the video
please like and comment so I can share
with more people on my YouTube channel,
Thank you and I will see you next Monday.