Today, I am going to teach you basic parameters

and I'll teach you step by step how to set them in Revit

Lets start with new family

I am going to select generic model adaptive template

This one

you can select generic model aswell

But generic model adaptive is more advanced

I am going to start with this

Okay

If you want to know what is parametric family, why they are used, how they will help you?

You can read blog on this. You will find the link in the description of this video

Explore it, share it with your friends

Lets start.

First of all go to Reference Level

We will start with reference lines

Draw a rectangle

I am going to draw rectangle of 10'X10'

10'

10'

I am going to move rectangle to the center.

To the centre

Okay

Now set the dimension for the length

Set the dimension for the width and dimensions are very important for the paramter

Select the dimension

Go to label and add parameter

Name the parameter

I am going to name it Length

Select the other dimension, similarly go to label and add paramter

Again, name the paramter

I am going to name it Width.

Okay

Basic parameters are set

Let check parameter are working are not

Length is 10'

I want to change it to 12' and width to 8'

Press Apply, You can see the dimensions are changed

Changing Length to 8' and width to 12'

Both dimensions are changed

But you will notice that center point is out

If you want to fix the center point or you want to lock the center, we have to add more dimensions to it

Select the dimension

Select the left line, center line and right line

As I told you before dimension are very important

You will see this not equal symbol. Click this symbol to equalize the side

Now set the vertical side

Okay

Click not equal symbol to equalize this side aswell

Now the center point is fixed. You can see the rectangle is equally divided around the center point

Now again lets check our paramters

I am going to change length to 10' and width to 8'

Sizes are changed accordingly

Rectangle is equally divided around the center point

Now rectangle is fixed around the center point

This is how you set basic parameters, dimensions are very important.

Now lets set the parameter for height

Select the rectangle and create a solid form

Okay

The height of the solid form is 4' by default

Go to front elevation

Set the dimension for the height again.

Select the reference line and select the top line of solid form

Select the dimension and label it.

Name the paramter. I am going to name the parameter Height

Lets check all the parameters again

I am going to change the height to 8'. Length to 8

and width to 12'

Okay

All the sizes are changed according to these points

This is the simple parametric family

I hope you enjoyed this video.

Please check my next video to learn more about cylindrical shape

I hope you enjoyed

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Good Luck