BIMtopia
/CEE 120C/220C Parametric Design & Optimization | Spring 2026
CEE 120C/220C Parametric Design & Optimization | Spring 2026
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CEE 120C/220C - For the Teaching Team Use Only
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All Design Journal Entries | Spring 2026
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2026 Design Journal Entries | Spring 2026
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Sebastian Madrigal

Sebastian Madrigal

Journal Entry For
Module 3 - Give Me Shelter
ACC Folder Link
https://acc.autodesk.com/docs/files/projects/ef862b37-e023-4ef6-8ec3-3615621538bf?folderUrn=urn%3Aadsk.wipprod%3Afs.folder%3Aco.8UzbH9bCT12abwT2twJSdA&viewModel=detail&moduleId=folders
Link to Student
Madrigal, Sebastian
Files & media

The main image (which I found the nicest):

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Stage 1 - 2 units

For this module, I wanted to incorporate a design based on similar sine waves to that of the previous module. I therefore created a dual facade system that was based on two offset point series. The requested parameters such as height, length, width, curvature, amplitude, panel thicknesses, etc. were created to enable the user to choose a wide variety of customizations (both of the dimensions as well as the signature sine curve). For now, both facades maintain linear bases that make for a more simple design and constructability. However, some issues with slider limits arose due to overlapping geometry. This will be discussed further later in this journal entry.

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Stage 2 - 3 units

This stage consisted of setting a similar sine equation that defined the top to now define the bottom of each facade. With a ā€œNurbsCurveā€ operation to connect the top and bottom facade curvature, this stretched configuration introduced new challenges to the aforementioned overlapping geometry; so designers must be wary.

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Stage 3 - 4 units

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I do want to note that when creating more points, I would need to go into Revit to select ā€œFlipā€ for the new panels created from the new nodes. The above screenshot shows the product where some of my pre-existing panels were already manually flipped in Revit, but some of the new panels (toward the top of the facade) have yet to be flipped.

Note the overlapping tubes toward the top left of the image. A solution might be to limit point placements (or tube connections to the sine wave) to the closest extent of the sine curve. This function might resemble a program similar to the facade component of Module 2.
Note the overlapping tubes toward the top left of the image. A solution might be to limit point placements (or tube connections to the sine wave) to the closest extent of the sine curve. This function might resemble a program similar to the facade component of Module 2.
Note that similar issues appeared for fitting 22 points in a smaller length of 10ft. However, reducing the number of points (seen in the earlier figure) allowed the illustration to take place.
Note that similar issues appeared for fitting 22 points in a smaller length of 10ft. However, reducing the number of points (seen in the earlier figure) allowed the illustration to take place.

When experimenting with a length of 250ft, I encountered an error where my panels were unable to be created due to ā€œself-intersectingā€ geometry. Although my existing design parameters/sliders allow for some more extreme values, extreme curvatures would impose constructability challenges that are fortunately captured by this error. Therefore, the designer must toy with different iterations (driving amplitude, wave number, point number, etc.) to create a geometry that is physically constructible.

Bonus:

As an additional feature, parameters to define the facadeā€™s panel colors were included, allowing for colorful checkerboard designs.