Welcome back to your PJ Chen Design. Today we are going to talk about the
structure and how to model for this Byzantine style chain. are you ready?
let's get started!
for this style of the chain the model is actually not
difficult at all, but is the calculation on the structure. so let's study the
structure first right here. We want to have some space. you don't want them to
get it too tight, so if you get this chain really tight over there, you
probably don't have a room for it to rotate. so when the chain is actually
rotated, you need to have some room for it. otherwise it's kind of bumping into
each others. you also need to consider how much of a rotation you have then if you
doesn't have this opening enough that may block it. so we can see this will have
room maybe from here to here, also this one will have a room to go in
whatever you are doing just using the middle line as a calculation
so make sure that you have enough space for them to moving around. we're going to
starting with the top view, I'm going to use the conic corners for rectangle
and you can join anywhere for any size that you want. first coming back
something like that, and I would like to align to the center just type it zero.
and we can move it to anywhere that we want. the second thing I'm going to do is
creating a profile there over the cross-sections. I'm gonna use a conic
corner again, and I'm going to snapping over there depends on how big your stone
or if you are going to set the stone there or whatever size of the thickness
on this link over here. and let's go ahead to move this one up alright, and if
you feel it's too fat or something, we can change it later but let's keep it
like that first. we wanted to have the sweep one rail to get this one
look a little bit fat but that's okay. we are going to change it later. we're just
gonna use it as a reference to see the measurement for everything to see if
that is working correctly. the second things that I like to do is using the
ellipse tool and snapping into the zero and kind of get an idea of where that
piece in the center is going to be. and again I may want to just using this one
and let's copy that so we kind of keep the same profile into here, and again we
want to do a test to see if size fit so let's do the sweep one rail and kind of
getting the shape over here. okay so we look okay because it's not over half of
this link right there. but apparently is a little bit too fat, so maybe we need
to have them going down a little bit like that.
and don't worry about a shape but the formula we work on and we do it again
here just for us to measure everything. Imagine if I have this mirror
to the other side, and I will have something like that and this will be
where in the middle that link it's going to be if you feel like this is too much
of a gap. this is a good opportunity and now we want to moving a little bit okay
and you also need to make sure that has enough space for the two bars to
workingg in between. if you feel like that's not enough space and you probably
don't want to move this. instead, you want to extend this something like that. that
may be a better space over there. okay so now let's do mirror to the other side
one more time, and we wanted to have that over here okay so now we are going to
making the bar in the middle. we're going to use the conic corner one more time.
and we want to center, and snapping into the zero, and let's coming into the
front view. we want something that is can go over to
the inside of the link on both ends. and I'm gonna come in down something
like that, so this will be the curve that we have. we're gonna use the same profile
again copy that profile from this point to this point, but we want to rotate it
we want to rotate in 90 degree like that. okay let's do a test, we want to do sweep
one rail, cross-section here, and take a look and see if that works alright. so
look like it depends on how wide your (metal is) if you're gonna set the stone you need to
make sure it's wide enough for you to put the stone in there, and we want to
move this up there, and mirror to the other side. so right now it is good for
us to take a look, if everything working as you can see this part is blocking in
between those two, so it doesn't have any of the movement so what we wanted to do
is possibly we need to make this one a bit taller, and then maybe this one we
need to give more room so that's moving this one more like this way.
it's not touching in the middle yet, so we still have a room on the side. we may
want to moving a little bit okay if the oval doesn't work, because it's
like too tapered now maybe this is a good size but we are going to change to
the conic corners, so we're gonna coming over here with the conic corners with
the center, and then we want to snap into here with smart track, and then
snapping of it at this point, and coming and snapping into this point as well, so
it gives us where the corner is, and coming in a little bit, so you can see
the new curve right here has more of a corner. Maybe that will be the line
that we are going to use. once we have set up everything, we can go ahead and
delete all those surfaces, but keep the curve that we have
and again we can do more adjustment, if we see if the curve is still blocking
We want to make sure they are not touching. so now let's move the
profile to the right place. we're going to use the Move command to move this one
to here, and move this one to the quadrant as well. Now let's rebuild this
surface we are going to use a sweep one rail. this is a rail cross-section and
that will be our link. this one. we're going to build with the sweep one rail
and everybody is with the sweep one rail so one more time
this one curved and go with this cross section, and I got that, so now
everybody is not touching right but now we are now changing anything on those
part but we need to have an opening there and you also need to go in down to
the bottom there. so the way we are going to do is we want to move this one
up, and how tall you we're moving in? a long as it's not sticking with this link
we should be fine, and we need to know like where we wanted to cut it. so
I'm kind of need to again doing a test. I'm going to cut it somewhere about here
and to be symmetrical. I want a mirror that line to the other side, so now I
have those two. it's going to trim off this one there now. I need to have the
one on the top mirror to the bottom. okay so if we are going to use... create a
surface there are two ways to do it. we can use the blend tool we're going to blend
from here to here, and let's take a look and see how well that is. if that is too
thick to you, you can kind of adjust the slide bar here to make it shorter.
it looked okay right here for me but just need to be really careful if
inside is deforming too much. okay so that is one way to do it.
the other way if inside is deforming too much. I'm going to show you another
way is we are going to blend instead of a surface we want to blend the curve. so
we're going to blend this curve to this curve, and it's going to give us a curve
over there and we can adjust the curve and then the getting really close to
where we want it. Once you get the curve, you want to click OK and then
we are going to use the command for sweep 1, so this is gonna be the rail and
this gonna be cross-section here to here then we will get something like that.
notice that this is actually much more even surface so I'm going to use that
one, and we are going to mirror that to the other side. Don't forget to join
those surface and double make sure if they are close solid polished surface ok.
so now we have our structure we just need to make sure that they are working
fine. so let's go-ahead to mirror that one to the other side, and we also want
to mirror the sky to the other side right here. As you can see it is blocking
there. so maybe we need to adjust a little bit more. the easy way we can do
is we can make this one a little bit wider. so we can moving all of this down
a little bit let's delete this one and this one, and let's do another copy
Let's mirror that one to the other side so now it's not touching. so this is the
way that you adjust this. For the stone setting part, I have online course to
teach you a different kind of a stone setting for the model, and I also have a
playlist YouTube and have a few videos talking about stone setting. please check
them out. Don't forget to check out my new feature the
membership program. With your support allow me to create more video and help
more people to learn jewelry. thank you for watching and I'll see you next!