Parametric Modeling of Vaults for Notre Dame in Revit

ALFREDO MEDINA: Welcome. And thank you. When Notre Dame was built, they started in 18-- 1,163. And they finished on 1345. So they built for 182 years. We have only 90 minutes here to do one vault, one type of vault, right? So we need to use some strategy to make a good use of the time.

Please let me know if you find data sets for this class. And please give me some visual signals that you found the data sets please. If you don't, you can do thumbs down and then one of the lab assistants is going to help you. Raise your hand thumbs down or thumbs up.

No. I just want want them to find the folders. Yeah. In the meantime, I'm going to open my PowerPoint.

OK. In the meantime, just a brief note about the speaker. I'm Alfredo Medina. I am a bank manager for HHCP architects in Orlando. In my free time that is not too much, I do some videos about Revit families in this website, NerdyAlf.com. And also in the rest of the time, I sometimes provide online training through the Autodesk services marketplace. Thank you.

We have a team of lab assistants, Andrew Milburn, Rina Sahai, Paul Aubin, and Philip Chan. Thank you to my lab assistants. The handout contains two chapters.

Chapter 1 is just for you to read. We're not going to go over chapter 1. If you want to understand why we modeled the vault in this way, if you want to understand the proportions of the vault and how the vaults were built, please read chapter 1. And then we're going to concentrate on chapter 2.

What is the challenge? What are we going to do? We're going to do one type of vault, only one, the simplest type, the four part square vault. And the goal is that you create that vault. And then at the end, you go to this massing model of Notre Dame and place that vault. Place one on the first floor, another one on the second floor. Maybe do some roof by [? face ?] if you have the time, and then repeat that vault as per the floor plan.

This is the workflow. You're going to create four families. And we will begin with four part square vault. That is the host for those three other families. So you're going to create arc-1-semicircle, arc-2-pointed, and arc-3-middle, middle, and nest those families into four part square vault.

Once you're done with that, your next step is to go into the project and place the vault in the correct places. OK. Notice the workflow-- notice that each bubble for each family has a color. That's an indication in your handout. The steps for each family have that's the same color as the background.

Do you have the handout? Thumbs up or thumbs down. Why do you no-- it's in the application. You have it? Thumbs up. OK. I'll have it open over here anyway. So this is the workflow. This is the plan. And now let's take a quick look at each of those four families. This is the host family 4-part-square-vault.

This is family one. It's an adaptive semicircle basically. Right. It's a simple arc with two adaptive points. That's arc-1-semicircle. Arc-2-pointed is this one. OK. And this is arc-3. So with those three families, you're going to compose your four part square vault.

In your data sets, you have these folders. There is one folder with templates. To save some time, for each of the families you will find a template that already has parameters and some things that we don't need to do in the class. There is a second folder called My Families. This is where you will save your families, your family 1, 2, and 3.

And there is a folder 3, catch-up families. This folder contains one family for each of the 1, 2, and 3 ready in case you get lost. Right. And it has fast forward families. The idea with the fast forward families is that there are some steps that are needed more than two times so we're not going to do that.

We're going to do two times each thing and then move to the fast forward family, so that we make progress together and don't get stuck repeating the same steps. OK. I think that's all. I think that's all. I already need some water. Wow. OK.

Step number one is-- so let me open the presentation. I have a handout here. So the handout begins on page 53. Chapter 2 step by step instructions. And we begin now with step number 1. OK.

If you get lost, don't worry. Use the catch up families. Raise your hand if you need help but don't get stuck, because we need to move forward. Step number 1 is, in your Revit, let's work on the four part stone vault. New family. So let's do that.

Families New. And then you go to your data sets and open your first folder, the one templates folder. OK. And from there, you click on the template for the four part square vault. So let's open that.

This water is from the previous speaker but I need it. Ah. Don't tell him. OK.

Then, step number two, we need some reference points. Again, the role is, if anything requires four things or eight, we only do two. So let's do this. Reference point. Notice that, in this case, it doesn't matter if you are working on work plane or on phase. So let's do reference point. And let's put these two points here and one point in the middle and modify it to finish. Remember to raise your thumb if you are in difficulties.

Let's see if we can move to step number three. Step number three is save this, because you started with a template. Save this in your My Families folder.

So let's do File, Save. Go to your folder. Go to the My Families folder. And save it as Four-part Square Vault. So now that is your file.

Let's continue with step number four. With step number four, we need to draw some reference lines, circles. This is to control the distance of all the arches coming together to the capital of the columns.

So again, the rule is we only do two of them and the one in the middle. So let's do this. Create reference circle. Activate radius. The default radius is 1 meter. And simply put one circle here, another one here, and another one here, and modify to finish. At home, you can do all the steps, all the circles and all the capitals. And then when we use the fast forward, we will find all the circles.

Moving on to to step number five. We need to control the radius of these circles. So let's do this. Please watch on the screen. I click on the circle, click on this symbol to make this dimension permanent. Do the same on this one. Click on the symbol to make the dimension permanent.

And then I can click on Select This Dimension, press the Control key, press the Select the Other Radius and convert that into parameter R1. So that controls the parameter of the capital of the column. Thumbs up? Oh, that's good. How about that side? Thumbs up? Great. We're doing great. We're doing great.

OK, now step number eight. We're going to divide the path of those circles because we need equal dimensions along the circles for the artist to converge onto the same points. So let's do this. Select this circle. Press the Control key and select the other circle. And together, click on Divide Path like this. And from the properties, set the number of divisions to 8, and move the mouse to the view.

See? I say I say move them out to the view instead of apply. You don't need to apply. Just move the mouse to the view. It's a tip. Are you OK with that?

Step number 9. In step number 9, it says use VG to turn off dimensions. So type VG. Go to annotation categories and turn off dimensions temporary.

See? My circle on the other side is wrong, see? Even the instructor makes mistakes. So don't worry if you make mistakes, too.

What we're going to do is we need to create a reference line from this point to this point to this point and then divide that line. The reason for this is that the middle arc of the vault needs to maintain that concave surface. If we use this point on the circle, it creates the opposite direction. So it creates the wrong geometry.

So we're going to do this. It doesn't matter if you do it in this corner or the other. Let me begin from this corner. Create reference line.

In this case, careful. 3D Snapping-- very important. Otherwise it doesn't work. 3D Snapping and On Phase because we're going to draw on the node of the divided path. So notice these two settings-- On Phase and 3D Snapping. Chain is also activated. And then I do this line from here to here and here and click on Modify. That's all for now. Easy.

I'm going to the other side. Remember we do two corners only. I'm going to do it again. Reference line from here to here to here with the same settings. That was step number nine. Thumbs up? Good, good.

Now, these two chains of lines need to be divided, also, to find those points of the middle arches. So we're going to select both lines like this. On one side, select that chain of lines like this. Press the Control key. Go to the other side, and select the other chain of lines.

At the lower right corner of the screen, you should see the number 4 because we are selecting four lines. Having them selected, use Divide Path. And in this case, we set the number of divisions to 5 and move the mouse to the view. OK? Good?

Now let's work on the circle at the center. The purpose of this circle is just to find a point for the second arch, the one that is diagonal in plan. So we're going to select this and divide it in four so that we have, basically, a quadrant each quarter of the circle. So let's do that.

Oh, sorry. First we need to constrain the parameter, the radius, which is step number 11. Click on the circle. Dimensions are off. I need to turn them on again. So VG, Annotations, Dimensions, on again.

And then we click on this dimension that controls the big circle and convert that into R2 parameter, which is already there. This will always be half of the size of the square. And then we divide this circle in four spaces. Click on the circle. Click on Divide Path. And set the number of divisions to four and save your file.

If you made it to up to this point, we're doing really good. But if you didn't, no problem because we're going to make the first jump to the first fast forward family. How about that? So even if you're proud of this family, we're going to close it and move on to the next. [LAUGHING].

So please close your beautiful family-- File, Close. And then family's open. And then you go to your folder. Where's the folder? Catch Up Families. Vault fast forward to step 11. And now you can be proud of this family because it is complete.

What happens in the handout? The color changed, right? That means that we put this on hold, and we're going to create the first arc. Notice that the background is different in the handout. Step number 12 in the handout-- new families. File, New Family. I go to my templates folder and open the template for arc 1 semicircle or "semicircle," whatever you want to pronounce it. Thumbs up? Did you find it?

Click Open. And now you should have this. It's an adaptive template. The background is white because I hate the other background, the other background that comes with adaptive. So this is an adoptive family with a white background, and it contains, also, some parameters.

So step number 13-- that's very simple. Just draw two reference points at the intersection of these reference planes like this. Create, Reference. Settings are not important here. That's fine. Just click here and here and modify.

Oh, this one comes with a line. Do you have a line in your template? No?

Point. We are creating points. My template, for some reason, came with a line. I'm going to dissolve it to be on the same page with you.

So far, we have created two reference points at the intersection of those reference planes, correct? Are we all same page? OK.

Now, those reference planes-- where they're just for reference, please erase them. We don't need those reference planes. So we're going to select those reference planes and delete them. So you should be here on step number 14, which you have only two points on the screen, correct?

And now you draw that line that I had and I deleted. To draw the line, it is important that you pay attention to the settings. Notice in parentheses I always put the settings that you need.

So we're going to draw a line like this. Reference line. 3D Snapping is important. If you don't do that, you don't get it right. And then simply draw a line from one point to the other and modify to finish. That step was easy, right?

Now step number 16-- we're going to convert these to reference points into adaptive points. Select one of the points. Press the control key. Select the other and find Make Adaptive. I don't see any thumbs. Oh, OK. Wow, this group is great. I'm really happy, really. It's really good.

So now we need to create a dimension, and we will convert that dimension into a reporting parameter, instance parameter. So we do this. Create [? aligned ?] from adaptive point number one to adaptive point number two and just place it there.

Then next step is we convert this dimension into a parameter called D report. D report. Why is it a report parameter? Because I need it for a formula. That's all. Because I need to use that as a formula.

Next step is to draw the first half of the arc. Please go to the front elevation. Oh, I need 19, step 19. On step 19, I need to draw a point on the middle of that line. So let's do this.

Let's go back to the plan view. Sorry. Let's go back to the plan view, reference level view. Create reference. In this case, it's on phase. Careful with that. You need to be on the line. Wherever that line goes, you need to be on the line. So reference on phase. And just put a point using that midpoint or snap and click on Modify to finish. Oh, did I place it or not?

OK, so I have my point. Now I can proceed with step number 20, which is go into the front view. And now we need to set the phase of that point as my current work plane to draw on that work plane. So we're going to draw a model arc. In this way, it's not a reference line. Why? Because I need to see that arc in the vault family, right? So it needs to be a model arc.

So to draw that model arc, we do this. From the front view we do Create this type of arc, the second, the one that is named Center Ends Arc. No, I didn't set the plane. I mentioned that, but I didn't do it, right?

So to set the plane, I do Set, Pick a Plane. And I use the Tab key to find that plane of the point. When I see it, I click on it, and now that's my current work plane.

Now, step number 21-- create this type of arc. Let me see the settings. Click on adaptive point number two. First point of the midpoint. This is the first point. This is the second point. And this is the third point. And modify to finish.

Why is it only half? Because when we get to the point of creating the actual surfaces, we need half of each of these to create portions of the vault. This needs to be constrained, though, so we're going to constrain that in the next steps.

To constrain this, first we need a radius parameter, and then we need to lock the angular dimension. Let's do one thing first. Click on the arc. Convert this radius into a permanent dimension. And then convert that dimension into R, simply, which is the D divided by 2. So this is constrained.

And now we need to lock the angle. To lock the angle, we click on the arc. Click on this angular dimension. And now you need to find that little padlock, which sometimes gets lost. You see it? Oh, there you go. See that? You need to click on that angular dimension and lock that angle.

Thumbs up? Uh-oh. We're getting into more difficulties, right? You thought this was easy? No, it's not. OK. Did you did you get to lock the angular dimension and the radius? You need to have a parameter for the radius and lock the angular dimension, OK?

Now, let's do the other half. To do the other half, you don't need to create another radius, and you don't need to create another dimension. It will stay with the other half. It will stay put. So let's create the other half.

Create model, this type of arc. I need to be on work plane. This is important. And then we say from this point, we go to adaptive point 1, and we simply connect to the other arc and modify to finish. Because the other one is constrained, we don't need to apply constraints to the arc on the left.

Get your thumb ready because now is your first challenge. Does this work? Please move the adaptive point. If you did it right, the arc should stay put as an arc. You can do that in the 3D view. I go to a 3D view and click on the adaptive point and move it like this.

Did your arc collapse or it worked? Hey, my friends from Canada. Hello. Thumbs up? Ooh! How about this side? Wow! OK.

So if you had any difficulty with this first flexing exercise, you can use the Catch Up Family Arc-1-Semicircle. If you're proud of this family and you think it's good, then load this family into the vault using Load Into Project and close. It will ask you to save because we started with a template, right? So you need to save it in your My Families folder as "Arc-1-Semicircle."

So load it. Do you want to save changes? Yes, right? Because you need it. And the name of this is "Arc-1-Semicircle" in your My Families folder.

And now you are back in the host, right? Now it's your time to use your adaptive semicircle in plan view like this. My handout says that we should turn off dimensions for clarity. So let's do that. VG, Annotation Categories, Dimensions Of, and click OK.

Now let's use that Family 1 like this. From the project browser under generic models, find Arc-1-Semicircle. Click here. Right-click. Create Instance. Place on phase because we want to be on the phase of the node of the circle.

And then simply do this. These are the ribs, the first thing they build, the diagonals. So you're going from this point to that point. And then you're going from this point to that point and modify to finish. Go to a 3D view, and you should have something like this.

Thumbs, what? Up or down? Wow. This group is good. Really, really.

Ah, but second challenge-- you need to flex this. To flex it, go to Family Types. Get your thumb ready because you're going to change the value of x, which is the side of the vault. I have it as the equivalent of 18 feet, some five point something meters. Change that to 9, for example, and click Apply, and get your thumb ready.

Ooh, does it work? I don't see all of the thumbs. OK, double, double. OK, so that means that now the little square volt is parametric, and these two arcs that we did respond to those because they have these adaptive points.

What's next? Oh, what happened in the handout? Color changed to green, so that means that we need to start a new Revit family for Arc 2 pointed. Let's do this. Let's save this before we do anything. Let's save our beautiful family. And then let's do Arc 2 pointed.

File, New Family. From the data sets, from the templates folder, find the template for Arc 2 pointed. This one is not as easy as the first one.

Let's click on Open. And this is the template. I have already saved some steps, you see? I have already the two points and the reference line.

So that means that we can do step number 31 and skip couple of steps. You already know this. You need an instance reporting parameter between adaptive point 1 and 2. Please do that.

Create a line from this point to this point. Modify. And then we convert this into-- in this case, the name is R. Name is the radius of the arcs. Are we up to the same page? Thumbs up?

We are on step 32, so we have a reporting parameter that will control the radius of the arc. Oh, sorry. No. Sorry. It was not the radius. Parameter D. OK, 32. Create a line from here to here. And then I click on this and convert that into parameter D.

AUDIENCE: [INAUDIBLE]

ALFREDO MEDINA: Sorry?

AUDIENCE: [INAUDIBLE]

ALFREDO MEDINA: See? I need more water.

[LAUGHTER]

OK, I skipped one of the steps.

AUDIENCE: [INAUDIBLE]

ALFREDO MEDINA: We have a catch up family anyway. [LAUGHING]. So let's convert these two points into adaptive. Yes, thank you. I had skipped that step. Thank you very much. And now we can do the dimension. Create a line from this point to this point. Modify. And then this should be parameter D. Correct. Parameter D, not R. R was me without water, so I was not thinking properly. So yeah, convert this into D. Why? Because D is the distance between those two points, which we use for formulas and those things.

Now comes a little tricky thing. Let's go to a 3D view. Zoom in. And as for step 33, we're going to draw two reference points on phase on this line like this. Create reference on phase, Point, and I draw two points there-- 1 and 2.

Now, in family types, there is a point called P. That point P is going to do that distance that we need to control the center of the arc. This is based on proportions of the arc that you can read in chapter 1. There's an explanation of this in chapter 1.

So because I have only one parameter, P, I want to use P for both points. But one of the points is measuring the distance from the end, and the other one is from the beginning. So there's a little interesting trick-- is to click on one of the points and flip the direction so that both can work with the same distance, P.

Look at this. Select the point on the right, this one. And you see that little flip control? I haven't used it yet. At the moment, this point measures the distance from the beginning. See this?

When I click on the other, this one measures the distance from the beginning, too. So I cannot use the same value because they are different. So I click on one of them and use the flip control.

Now I can select both points and go here to the normalized curved parameter. Use this button to associate that distance to P, not to cost because it doesn't cost anything. So did you see that? Now both points are at the same distance controlled by only one parameter, not by two. Because now the goal is to do this. So that distance is from here to here is P. And also, from here to there is P as well. Now, each of these points need to be the center. This point is the center for this, and this point is the center for that arc.

So to do that, we go back to step 36. We go to the front elevation. And now we need to do this in two parts. First we're going to use this point as the center. First we need to make that point the work plane of my arc like this. Set, Pick a Plane. This plane-- I use the Tab key to find it. When I see that, I click. Now that becomes my work plane. Now I can use that as the center for my first arc, like this.

Create, Model, Same Type of Arc. Draw on work plane. And we go from here, and we stop right there. I want to see those thumbs. Ooh, so quickly. Wow.

OK, so now that you are so good with doing this, you need to do it again. Let's constrain the radius first. Let's click on this. Convert the radius into a parameter. Click on that. And convert this into R radius. And then do not constrain the dimensions yet because you will need to do that after the two arcs meet at the center. Don't lock the angular dimension yet.

Let's do the other arc. For the other arc, we need to make Set; Pick a Plane; Select this Work Plane; and then Model, Arc, from here, here, and here. Something like this is OK for now.

Please, in this case, don't do the thumbs. Let's do this if you have it correct. Wow. This is great.

Now we need to trim those two arcs. So let's do the typical trim by corner. Trim this to this and modify.

Now we need a radius for the other arc. Please do that. Select this. Create a dimension. Click on the dimension, and convert it into R. Now you have to radius controlling the arcs.

Now is the time to block the angle, please, because the angle is a certain angle, 76 something. So you click on this. Make that permanent. Click again and lock this. Don't forget to lock it. Click here. Click here, here, and lock that. Oh, beautiful.

Now comes the third challenge for you because you need to flex this. Does it work? This is not as easy as the first one. Your challenge is move the adaptive point. Did you get the arcs together, stay in the correct places? In this case, let's do this.

AUDIENCE: [INAUDIBLE]

ALFREDO MEDINA: Good? Wow. OK. Yeah, because this needs to move. And if it moves, the arc should stay put, right? That's why we're making the parametric vault because it needs to adapt to other vaults and other sizes and all that.

OK, so I didn't see all the thumbs. There are some thumbs down? No? OK, one here.

If you didn't get it to work, you have two options. You can try to fix it or call the lab assistant. Or you can use the catch up family. The catch up family is Arc-2-Pointed. So please close that family, and open from the catch up families Arc-2-Pointed, and you'll be even better than the rest of the class.

Let me go back to the workflow because the workflow is good to understand what we're doing. If Arc-2-Pointed is good, now we load it into the 4-part square vault, and there will be only one more arc to do. OK, so let's go load into project and close. Do you want to save the family? You can open the catch up family. The name of this one is [? Arc-2-Pointed. ?] Do you want to replace? Yes. OK. Are we there? Is it loaded already?

Now we're back into the blue color on the handout. OK, so on the handout, this is the arc that goes on the edges of the vault. Remember the rule. We don't have 182 years. We're going to do only front and right side and then move to the next step like this.

From the plan view, we use Arc-2-Pointed. Create Instance. And we go from here to there and from here to there. Modify to finish. We'll go to the 3D view. And you should have a pointed arc on the front and on the right. Good? I don't see all thumbs yet. OK.

Now is the second disappointment. If this is beautiful and you're proud of it, you have to close it because we're going to do the second jump to the fast forward family. So please close this. Close this. Do you want to save it? No. And then open. Vault Fast Forward to step 45 please. Families open. And now, if for some reason you were behind, now it's your opportunity to catch up with the rest of the class.

Go to the catch up families and open Fast Forward to Step 45. OK. Step 45 has all the arcs on the edges. And now we need to do the final arc, Arc-3-Middle. It took me a while to discover this arc 3 middle. You can't imagine how many hours and weeks. I don't even remember. But this is the key to make the geometry correct, this arc three in the middle. Otherwise, if you do evolved with just these without the other one in the middle, the ridge is straight, and it should be curved, right? Also, the surface between these two will be flat without that nice curvature that should have. So this is the key arc that completes the process.

So let's do that. File, New Family. Folder, folder templates, and the templates for Arc 3 in the middle. As you can see, I already did some steps to save time. We have the adaptive points already. So we're going to move to step 47. 47 is a line from this point to this point. Create my dimension. Convert that dimension into D report, correct?

Now let's go to a 3D view to do step 48. This arc is basically the same as number two, but it needs to be broken. So we do one. And in the family, we just create it again. So this family's just half of the previous family like this. So that means that the center of the arc is outside of the line. It is outside because we need to do this. You see how that point is outside of the line? Because the radius is 1.293. If you want to know why, please read chapter 1. [LAUGHS]. So that point needs to be outside of the dimension.

How do we do that? From the 3D view, we need to make the current work plane like this. Set. Just click there. When you see that plane, click on it. And now that is the current work plane.

Now we're going to put a point there. That point will be the center of the arc. So we put it there, and then we make it jump to the other side with that value 1.293, which is already in the family like this. Create reference point on work plane. Careful-- on work plane. And we put a point there and click on Modify. That is step 48.

Now we need to click on that new point that we created. And to make it jump to the other side, we use the offset property of the point. I find the offset property, find this Associate button and associate that to R, see? See the drawing on step 50? That's what we're doing. So that point is going to jump to the other side, OK? So that is the new center for the arc that we need. So again, don't worry if you get lost on this because we have catch up families.

Let's go to the front elevation, and basically we're going to do the same we did for the previous arc. We're going to say Set, Pick a Plane, and set this plane of the point as my current work plane. And then I do Create Model, Center Ends Arc from here to there until here. That's what we see in step 52. It's basically half of the other.

And we need to constrain the radius. We already know how to do that. Click here. Click here. Convert this into R. That's the radius.

And then click on the arc, and the angle-- it needs to be exactly perpendicular to this. So the angle is 76, 91. So click on that and lock it. That's it.

But third challenge-- flex it. Move the adaptive point. And show me a thumbs up or a thumbs down.

So if you move the adaptive point, notice the center point should move along, and the arc should stay the same. If you didn't get this to work, please open the Arc-3-Middle family from the catch up folder. But if you have it, be proud of it because this is the third arc. Now we have all three families. We're going to load this one into the vault. So this one is working.

Now we do load into project and close. Do you want to save changes? Yes. This is Arc-3-Middle.

And please notice this graphic over here. This arc is broken in two pieces. You need to do one part from here to there and the other part from this corner to that point.

Let's go to the floor plan view. And again, remember the rule is we're going to do this only twice. Looks like I missed one of the steps you did because I talk too much.

So let's do this middle arc like this. From the project browser, Arc-3-Middle, right-click Create Instance like this. Careful. Place on phase from-- see this point? From that point to this point in the center. And then go to the other corner and do from here to there. Click on Modify to finish, and you should have this.

You're not raising the thumbs so quickly as before. You are? OK. Thank you. Manuel, David, Samuel. I know some names. [LAUGHS].

So of course, notice on the handout, if we do more of this, you will end up with something like that, like a star in plan view. but we're going to do that next jump to fast forward families. So say goodbye to this family that you did. File, Close, No. And then please open-- oh, it was too soon to do that.

[LAUGHTER]

Now it's too late.

[INTERPOSING VOICES]

ALFREDO MEDINA: OK. Yeah. Let's open from the catch up families. Which was that? Fast forward? 60, 58, 45? Yeah. OK, it was not a disaster. Open fast forward to step 45. You should have the same thing. 45? You have the same?

OK, now we're going to do the ribs, the diagonals. This is what they build first. So we're going to follow the same order. To do the ribs, let's do this. Step 58. Step 58. We need a point on each of these diagonals like this. Create reference on phase because we want to be on the arc. On phase.

Create reference point on phase. Let's pull one point here, another point here, and click on Modify to finish. Now we need to put a profile there, the stone profile.

So let's say this one, for example-- we need to set that point. Set that work plane of the point and then, from the project browser, find Profile 3, Stone Arch Rib, right-click. Create Instance; on work plane here. See that? And put it on the point. But then you need to use the Tab key until the flat portion of the profile is up like that.

Thumbs up or down? OK. We don't want to see that profile in the model, right? So it's good to set that to non-visible. So you click on the profile and find the visible property and set that to No, because otherwise you will see that line in your arches.

Now is the moment to build the arc. Click on the diagonal on the semicircle. Press the Control key, and click on the profile. And do Create Form, Solid Form. And ta-da. So we have the first diagonal.

Do the same on the other side now that you know the steps. Set Create Instance. Place on work plane. Rib-- not visible.

And then click on the profile. Press the Control key, and click on the semicircle, and create form, solid form. And now you should have the two ribs.

How are you doing with this? Quiet. You're quiet. Good? Manuel, any difficulties? Oh, thumbs down. What happened?

Yes. If you get one of the ribs upside down or something, even after you create the form, go and select the profile, and use the Tab key until the flat portion of the profile is up. It will adapt to the form.

You're too quiet on this one. Samuel? Good? This side over there? Good? Double thumbs up? OK.

Now this becomes a little more tricky. Now you're going to do the arches on the edges. Again, to save time, we will do only front and right. This one has another property in because, depending on the position of this arc, sometimes you might need one profile or the other. We will see how to handle that.

Let's begin with the front arch. This is step 64. So let's do Create, Reference, On Phase, Point. And let's put a point here. And let's put another point on the right elevation. Remember the rule. We do only two.

Let's work on the front arch. Set-- let's set this point as the current work plane. And let's do this-- from the project browser, profile 1; Stone Arch A; right-click Create Instance; place on work plane; and we put it on that point, and we use the Tab key until the flat portion of the profile is up. One thumb up only. You? OK.

In this one, you're going to learn something different. Depending on the position of this, sometimes you need this profile or a bigger profile. How do you handle that? There is a family-type parameter already created in the template. So please apply that family-type parameter like this. Click on the profile, and go to Label. And you're going to say, OK, if this is the front, I have four labels or four parameters for each side of the vault. So for this one, it needs to be Profile for Arch Front, like this. That allows you to change the profile if you need to, because the other profile B is already loaded-- is a bigger profile. You can see that in chapter 1.

So when do you change it? If the vault faces the main nave of the cathedral, they use the bigger profile, the profile B. So this parameter allows you to swap one profile with the other.

So we do that. And then, also, remember you don't want to see this in the project, so make it not visible. And now let's create the arch. Let's do this. Select the line, and do Create Form, Solid Form.

Let's do the same on the other side. If necessary, you may need to do some orbit and find the proper plane. Remember, we put profile A on work plane. Careful that the flat portion of the profile needs to be up. Remember to provide a family-type parameter. This one is the right side and not visible. And then you select the profile and the arc and create solid form. Good? Thumbs up?

AUDIENCE: [INAUDIBLE]

ALFREDO MEDINA: I did. I already did.

AUDIENCE: [INAUDIBLE]

ALFREDO MEDINA: Right. Remember we're doing only front and right. Did you get this to work with the two ribs and two arches? Now is the time to fast forward. Sorry about that. Please close this and use vault fast forward to step 69. So let's close this. No. And then let's do Families, Open, Catch Up Families 69, Open. There you go. Now you have all the arches created.

And now, following the same rule, we're going to do only two vaults. Step number 70 says, for clarity, hide all the arches first. So let's select all the arches like this-- the ribs and the arches. And using the glasses icon, let's hide those arches so that you end up with the wireframe only.

Now let's look at the diagram on step 72. You need to select three elements. The first one is half of the pointed arc, number one. You press the Control key, and the second element is the middle arc. Press the Control key, and you select half of the semicircle, like this.

I might need to use a Tab key because I don't need the full pointed arc. I use the Tab key to find only one, like this. And then press the Control key, select the middle arc, and then use the Tab key to find only half of the diagonal, and then Create Form. There you go. Ta-da. It's taking shape.

Please do one more because we need to move forward to the next step. Maybe you can do the other half. This one-- press the Control key. This one-- press the Control key or Tab key until you have three elements selected and create form. Beautiful.

Ryan? Good? Thumbs up?

When you reset visibility, you start seeing the vault taking shape with all the vaults. Do you notice that there is a gap between the surface and the top of the arches? That's intentional. I'd put four inches because in the project you're going to do-- if we have the time-- roof by phase with four inches thickness going down, so that fills the gap. And the roof is exactly on top of the arches, which is exactly how they built it.

Let's fast forward step 76. Are you OK with this part? Yes. Let's close this, and let's open fast forward from the catch up families. Fast forward to 76. So here the vault is complete.

The vault is parametric in the sense that it is a square type of vault. If you change the size of x, it changes the size of the vault. But if you need this to be rectangular, you need to do a little change in the formula of one of the arches, and the center circle needs to be an ellipse instead of a circle. So you can use this as a base to produce other vaults of other figures, but this one, 4-square vaults, works very well.

So now is the moment of truth. Please open a project. So let's do File, Open, and Folder 4, Sample Project, Notre Dame Mass with Vaults. You see this that I have on the screen? Yes? Good? OK.

In the places where you see the shaded floor, in each of those bays is where this type of vault is used in the project in the cathedral. So we're going to go to Ceiling Plans Level 1 to place the first instance of the vault. We need to put it close to this, and then we align it between the C and D and 5 and 6. So let's go to ceiling plans level one. Using the switch windows, go to the Vault family, and load it into the project. We can use Load Into Project and close because we don't need it anymore. Well-- it's too late. OK.