Welcome back to PJ Chen Design. Today we are going to look into this anchor
design, and how to get a rope wrap around the shape. Are you ready?
let's get started!
we're going to use the command call picture, and you can bring in any
reference image that you have there. Deciding what size you want it first and
then you kind of wanted to move it from this point or any things that you think
is right in the middle, and just type it zero there so that will be symmetrical
and we only need to deal with the half of it
now once you have into the size that you wanted, then you want to
lock the object. We want to get it as close as possible, and type in zero and
I'm going to go from here. This is a basic form you don't have to have it
exactly the same, or you can change it later if you want to, but I basically
want to do something like this. Get it as close to the form as possible and we
can change it later if we don't like it.
and I also like to do is make sure that I can align to the bottom, so make sure
that your smart track is on, and snapping into this endpoint, and then moving
your mouse up, so that way you can make sure the very last point is actually
aligned with the bottom one, and just want to make sure this is nice and round.
so I'm going to move it up something like this. Okay so that's one side. it's
done. The reason I have it this open is because I want it to be nice and round
so instead of just using the fillet, I like to use the blend tool and blend
from here to here. okay so now we get that finish we also need to have another
curve. It's going to go from here to here and again I want to leave it open, so I
can blend it to have a really nice and round form there. Alright and then let's
use the blend tool and we want to blend it from this end to that end. Okay so now
we have this one left. We can trace over, or we can use the arc
tool, and snapping it to the end point and the end point here, and coming up
like that. So this will be the shape that we have, also on the top right here
so we're gonna throw the arc first. We're gonna snapping here, holding the SHIFT
so then they will be the same height. if it is hard for you to get it exactly the
shape you want, we can always create whatever and moving down with this point
close something like that. okay once we have that we are going to mirror to the
other side something like this, and you can move this up a little bit to close
the shape. We're going to use the arc tool one more time, and snapping here to
here, and gonna bring out like this, and then we are going to mirror to the other
side and to get something like this. The last things we need to do is this
curve, but I'm just gonna go ahead to hide the background first. Let's deal
with this shape first. Mirror that to the other side. Let's go-ahead to join all
those curves there and I do actually want a split with the point. This point
over here and coming to the top somewhere over there. Then we
separate them top and the bottom, and we do want to make an arc by snapping to
the end point to this endpoint, and we want to move it down something like this.
okay so that will be the bottom part now we need to making a profile to show that
how deep we want. so let's go-ahead to snapping into the endpoint right
here, and coming to the right side. I'm going to move it up like this, and coming
over roughly about two millimeters or less, depends on your design, and you're
gonna coming over here and move it down something like this. Alright and you can
modify the design if you want to, and by just showing how thick that is going to
be. For easier for you to understand, I'm going to snapping into this point, and
draw a straight line intersect with the curve we just drew. Let's go-ahead to
split this one with this line. So we get that bottom over there, so we're going to
give it a try. Let's do Sweep 2 rail, rail one, rail two,
cross-section and you get something like this. Then for the second
part, we cannot sweep all the way to there is because of this sharp corner there
so we need to create another curve. Let's go ahead to snapping into this endpoint
and to somewhere here, and then we will go to the right view and to create a
slightly caving something like this. we are going to sweep two, rail one,
rail two and the cross-section. so you get
something like that, and we are going to finish with this rail one, rail two, and
the same cross-section. Let's take a look on the render view, and see if this is
the shape that you like. if you like this shape we can just join them, and then
Let's mirror to the other side. Alright so now we finish this one, and double
check if that is the shape that you like. now let's working on this part, we are
going to join all of this. We are going to split with the point right at this
point, so we got two rails, and we need to
decide the cross-section. I'm going to come in over here, and to draw something
right here, and roughly look like this coming over here, and coming back to a
line with my first point there, and this will be my cross-section, but I need to
move that cross section to those points so the command I'm going to use under
the transform, you have the orient 2 point and make sure scale 3D and you
actually don't need a copy. So we're gonna go from here to here, and snapping
from here to here. So this is our cross-section. We are going to use a
sweep two rail one more time, rail one, rail two, cross-section and that's how you
get this shape there. All we need to do is to create a surface by clicking
that curve there, and we're gonna go extruded curve straight, and then we are
going to use that surface to trim off the extra that we have here, and at the
same time, we're going to use this surface to trim the extra over there. so
now you can join those two surfaces. so to make them into solid. If this is
like really thin to you, you can actually make them a bit thicker. You can pick up
the curve that we have, and you can extrude it the surface straight, and
depends on how deep you want to have. Let's say, I'm going to do one millimeter
for thickness, and this one as well. I'm going to extrude it for one
millimeter. so that way you can create a thickness there, and if you like
everything just go-ahead to join everybody. and we can cap this one
also, cap this one, so they both become solid we can bolding it later.
we just need to mirror this one to the another side. Okay so now we have that
this one in the middle is quite simple. we have all those curves over there. First of
all, I would like to join everybody, and kind of give it a fit at the corners, and
I want creating a profile I'm gonna use the arc tool snapping to the quadrant
here quadrant here. Come into the right view, and make a cross-section there so
I'm going to split this one with the point right it here and here, and we are
going to use a sweep two rail, rail one rail two, you and you're gonna start
with the point the endpoint right here. Going to the middle coming back to the
endpoint one more time, and you will get something like this. If this is
the position that you want that's fine. if you feel like you want them to be
more pronounced like this, you can just move it up and then we want to have this
curve and this curve join back together. and we want to extrude straight, so then
we will have the thickness as well. Let's join it and
so the very last things that we want to do is to create this curve over there.
so what I like to do is to come over to the top view, and I'm going to draw a
line follow this rope here. Try not to snapping anything. So I try to go by the
middle of the rope and so it will look like this. Now we have that,
We need to kind of a moving up and down. Let's turn on the control point and
then for the curve over here maybe those three. I want them to move higher. So it's
gonna go like this. This comes into the front and then they go in
pass that. so the point roughly about here need to go behind the shape and
this one is kind of going lower and when they coming into somewhere here those
need to be higher. so I'm going to move those up and try to make it as smooth as
possible. Also you don't want them to be like
way too high
and then the very last one is going behind so we want this to go behind that piece
and it will be something like this. okay so you got the curve that is wrapping
around so first of all, we need to know how long is this piece, so we want to
type a command length, and it is 33.564 millimeter
We want to make a copy over there then we want to create a straight line
right here, and that is the same length that with the curve that is wrapping
around. alright so this is the curve where we are going to create our rope. I'm going to
hide the drawing so it's easier for us to see, and then I'm kind of coming over
here to draw a circle. To draw a circle over there and this circle. It can be any
size but try to keep keep it proportionally close to what we have
over there. And let's go-ahead to trim each others, and I always like to give it
a very nice small fillet, so that's giving a fillet for about only one
millimeter is something really nice. So it doesn't look too sharp on the
rendering. Go ahead to join them and then I wanted to align them right in
their center so something like this and have that shape that we just have.
We want to make it into the solid by extrude straight and snapping into the end
so the next thing we wanted to do is we need to twist it. Let's go-ahead
to snapping into this end to this end. and I want to go like maybe six or eight
I don't know I just need to try and see which one worked better
and then so we get something like that. Alright and
notice that it is tight and right in the middle but getting really loose at the ends
and I want to actually go from really tight the end to end so let me do
one more time, and this time when we do the twist command, we want to go from
this end to this end, and when we try to turn we wanted to infinity equal yes, we
want to preserve the structure yes, and make sure both of them click yes. I'm
going to try about 3 4 5 6 8 and then so I will get something like this.
hat would be even it from beginning to the end.
Now we have this we need to have that going around this shape that
we have it there. So we are going to use transform, and we are going to flow along curve
this will be the object, and that is the base curve. that is the
target curve. so we can have a shape like this and you can adjust it more if you
don't feel it flow really well. so that's our anchor tutorial with the Rhino 6.
I hope you enjoy. If you are interested in learning Rhino in a more systematic way,
I have a few courses on my website. you are welcome to check it out thank you for
watching and see you next!