Hello everyone that's make a YODA coin today for our Star War fan, and welcome
back to PJ Chen Design Channel. This channel is to share rhino 3D knowledge
to help students and 3d model professionals to learn various Rhino
techniques. We will discuss how to do a coin eage and low relief with Rhino 3d
model in this tutorial. Are you ready? Let's get started. Before we start making
this Yoda coin tutorial. I would like to put the disclaimer here. This tutorial is
intended for the education purpose the website I'm going to show you or any
trick that I show you, please make sure that you have a copyright or from
original author with the agreement to use it. This is not intended for sale.
Before we actually starting our model I always like to study the construction
and see how things is constructed. So lets go to the google and type it
"coin edge" with this coin edge is actually there are few different type of a coin edge and
I would just like to have something really simple as you can see on this
image right here, look like it is being boolean out of some of the cylinder
type of a structure or some sort of a triangle structure. You can also see this
a little bit bevel edge. So in our model, we would like to do a bevel edge and also
the cylinder cut out. Okay so let's get started with the coin edge and then we
can talk about the low relief after we finish that. Let's start this coin with
cylinder tool. It's living under the solid tool you go with the cylinder and
I like to make this coin about one-inch. so right here the diameter I'm going to
type 1 inch, enter, how high is it ? I'm roughly gonna set it up to 2.5
millimeter. Okay so we have this one then we need to have a bevel edge right here.
so let's go to the solid tool then you have this call "chamfer edge" and then
let's set it for about 0.5 millimeter and see if it's gonna be too big.
It looks alright, I mean it could be smaller, but it's really depend. there's no
standard for it.... based on my knowledge so you can set it as tiny as you want, Alright.
next, we can simply using the cylinder again but I'd like to use a
little more triangle-ish looking. I think that looked nicer, more like a gear
so I'm going to use this polygon tool and just snipping right in a
quadrant. Holding my SHIFT (key) so I get this triangle. Let me pull it up a little bit,
so I get this triangle there but if you cut out something like really sharp like
this. It's not really comfortable when you touch it. So let me make it upside
down. so we'll take 180 degree and then I wanted to have all the edges rounded.
So I'm going to do is using the corner and let's set it up for 0.3 and pick up
our polycurve, "0.3",and then so we get this kind of roundish thing there.
I'm going to move it down and just have it cut it just above the line right
there which is the edge of our chamfer edge and let's make it a little bit longer so
make it into the solid straight. Let's take a look on the other view.
and then let's move up, so you're kind of guessing what I'm going to do is to
boolean differences out, right? but you don't want to cut it way too deep so
that's moving it little bit like this. Okay, sometimes you just need to try few
times to get the best resolve so let's try this one. Let's do the polar array
it's under "array" then you have the "polar array". Hit ENTER, 0, Enter, and I'm just
gonna guessing for 45, and see how they come out. Alright so it came out alright,
but I really don't like the distance there, so I'm gonna increase it
a little bit let it try 50, maybe 52. Alright so it looks better and then, so
we are going to use this as a cutting tool. So I'm going to use boolean tool,
boolean difference, this will be boolean out from the rest of it.
So this is what we get for the coin edge right if you cut it in too much over
this edge right there, it won't look good. So study a little bit about the
structure and then you'll find the best position for the cutters.
The same structure can be used on the coin edge on the watch design. You can see
this is really similar structure compared to the one that we just finished.
Next, we are going to find an image and put it on top of it. The website that I
like here is the online community. It is called GrabCAD community on the left
top corner, so you go to www.grabcad.com and in their library
you can type in anything to search the model that people share over there. Most
of time they are STL file so I'm going to type it here for "Yoda" and see what
come up with. so right here that you got a lot of things that relate to the
things that you just searching. It could be their name, but it could be the object
itself. So this is the one that I found, and if you look at inside you're going
to see they have a lot of files to share, and this is the one we are looking for.
yoda.STL file. When you import the file they will be in the mesh instead
of the 3dm because that is the universal file to read on all different
type of 3d software. So go ahead and download it and then after that you can
import into Rhino. When we are in the Rhino we can use the "import" then you
will go to where you download this file, and you will find this STL file, and we
want to open it click "OK" to import the file. The file will be the size for the
original size. A lot of time, when you import them they
are pretty big for jewelry use, as you can see my coin is like really small
there. So we need to scale it but before we scale it, be really careful, a lot
of time, the eyeball is actually separated from the model. So we want to
boolean them. Instead of using the regular boolean, we want to go to the
"mesh" under the mesh tool you have a boolean tool, but it's "mesh bowling union"
so that's unit them first. so now they are united. Double check, make sure under
the property they are close mesh. Okay, because if you do want to print out you
need to make sure everything is closed. So that's go ahead to scale it
with the gumball, make them smaller so fitting in to the size that we want, and
also wanted to go into the right view. And I wanted to rotate it 90 degree so
it will lie down like this way, and also wanted to rotate it into any other
angle I like. I personally preferred this way and scale it down a little bit.
alright so if we go ahead and put this down and let's turning into the render view
All you see is something like this it's pretty tall so we need to make them
kind of 1D scale it down so it's make them more flat a little bit there okay
and then let's move it up. Move the model up a little bit, so that way we can see
thr whole head, right? Seems like there's no problem to do that. If you are
going to mill out. All undercut will be disappeared. there will be a straight
line coming down here, but rest of it should be fine, if you're going to mill it.
It shouldn't be have too much of problem. Now the problem is
the ear right here, and that's the reason I picked this model here is because you do
1D scale is scaling down everything. if we are going to 3d print this guy, we
need to make sure there's enough material at the bottom. Easy way to do is
you can put a block in the bag and kind of bowling them together but I
personally like to do is using the command is called "cage edit", so I'm
typing cage edit and then I'm clicking on the Yoda only, and then choose the
first one called "bounding box" and then ENTER. The preset is XYZ will be 4, 4, 4,
which means they will give you 4 point to edit. I actually need more points
on this. so X I'm going to change to 12. Y I'm going to change to 12, and Z I'm
going to change to 12. and I ENTER. Very quickly you're going to see a box coming
up, and EnteR one more time. then you will have a lot of control points to edit.
so basically everything looks alright beside this ear right there.
I'm going to lock the background which is that coin and then I'm coming here I
want to pick the areas for the ear only. so I'm going to pick up those area.
Actually I might need to include few more points right there. Ok so those are
the points I want to do the editing, and then the idea is- I want to pull the ear
down so let's take a look at the front view. I want to pull the ear down, but I
don't want to change anything above for the ear, so I'm going to do is
I'm going to deselect all the points on the top, ok
and then I'm using the gumball to move things down
since this is a mesh so it's going to be a little bit slow. Okay so now I
pull things down, you can see it is now start touching and only that part start
touching, and I also may want to bring down the tip of the ear.
when I pick (the points) on the front view I'm going to select the whole row, so I'm
gonna go back to the top view using the holding the CTRL (key) and deselect
all of these okay and then come back to the front view I
kind of pull the tip down a little bit, and again depends on how fast your
computer is, sometimes they are really slow. okay so I just kind of give a
little bit time and keep checking on the image to make sure that you are not
stretching it's too much it will look weird if you're stretching too much okay
so you're going to spend some time to tweak it a little bit. I also like to
have the bottom of the body, which is the bottom 2 rows. Let me
select this bottom 2 rows, and have them coming more together so it's kind of
blended back to the coin. Instead of a cut right there. Iook like I still
have that height there, so I'm going to pick on the front view. I'm going to deselect
whatever now is inside of the coin, and bring the top a little bit lower.
Alright so let's take a look on the perspective and as you can see in the
perspective is coming kind of blended into the coin. Alright, if that is what
you like just hit couple times on the Escape key and then you can delete the
bounding box if you want. Alright so that's it this is really good and I like
it whatever thickness end up with. I actually will tweak few more times if I
wanted to do and then so that will be the image that we bring into here. All we
need to do now is we need to turn the coin, let's put the ghost view,
once everything is done and tweaked into the ideal high, and everything you like
we are going to turn the coin into the mesh and then use the mesh boolean to
boolean it together. I will leave the rest to you for you to
tweek it into the way you like, but I would like to talk about the text on the
bottom. The text on the bottom, what we can do is I'm going to find out this edge
there, and the way to find it out is we're gonna use the command
it's called "DupEdge" and I'm going to pick up this edge right there, alright
to be easier to see, I'm gonna put them into other layer, and also turn the rest
of things off. Okay so let's go through the top view and take a look on that
here is the straight line right here, I'm gonna use this straight line to trim the
rest the top off, so this is the reference to show where the text is
going to be. In order to know what is the size of the text and the position on
that curve, I need to know the length so I'm going to type it on the command bar
"length" and pick up this curve hit ENTER and it will tell me is
28.472millimeter so on the side I'm going to
draw exactly the same length for 28.472
Alrightvso that would give me the exactly the
length there. I'm going to type it just using an example for my website so I'm
gonna type it www.pjchendesign.com for the text on this coin.
Alright and then make sure you group them, so every time you pick them and
they will be together. so I kind of want to scale it down and put it in front of
it. okay, to make sure you will be right in the center, I would like to use
align tool to align them. Alright so they will appear really nice in the
center of the coin. The command to get the text onto the position, we are
going to the "transform"- "flow along the curve" so this is the objects going to
flow along the curve, ENTER, you pick up this base curve, and then you come in
here to pick up your target curve, now the text is right there. Let's bring back
the coins right and then I might want to move up a little bit and then the rest
of that s about the boolean, so this is what we have, and make sure that your
text is not too high because when you print that might be an issue okay so
let's take a look on the render view
Alright, this is what we have for the Yoda coin. I hope you enjoy it
I would like to challenge you to use any other image that you can find
and make a coin, and if you can share with me that will be great. You can find
my email address at the below link I hope you enjoyed the video and please
comment and share my video that helped me a lot on the YouTube ranking, and that
also is the way for me to keep making free tutorial. thank you very much, I will
see you next Monday