In this task I tried to use a variety of curves and lines to touch the points that were required in a really experimental way.
The use of different layers was a really important part of this task by using the curve boolean and trim to generate that effect.
I also decided to add some hatches to make my design more playful and to explore the program.
Since this was the first approach that I had with 3D printing, I tried to model geometries that would be too difficult to make by hand.
I used several tools that we learned to create solids, surfaces and curves in Rhino 7.
When printing, I decided to make the 3d printers to print at 150% speed to see how that could affect the result.
In this task I wanted to make this new volume to interact with the 3D printings that i previously did, that's why I decided to use that curve. Also to generate a more equilibrated composition in my paper sheet.
Here, I used the control points of the surface to make this organic shape that then i slice with the Contour tool.
I also engraved the hatch that was in the design since the beginning.
Here i started to make some experimentation with the use of Grasshopper.
I wanted to create a shape like a volcano that I could modify in the height, the scale, rotation and even the control points of the top curve.
As part of the experimentation with the 3D printers and Grasshopper I generated this cell structure by using voroni and multipipe. I failed in the 3D printing because of the angles and the lack of supports
For the design of my roof, I decided to use catenaries as the main element of my design inspired by the lecture "Arch-Cable". The use of trusses is also a main element in this proposal.
I had some trouble making the back trusses because of the order of the points that I finally solved by shifting the list and shortening it. This allowed me to have the points in order and simplified.
First I tried to keep the structure as similar as posible to my first designs but having the catenaries was not allowing me to make all the points to fit in the system.
Then i started using simpler trusses which i was never able to make work correctly in Karamba because of some trouble with non-rigid elements with no joint that I couldn't find the reason.
Finally, I decided to simplify the structure even more to be able to make the program work and also to make the hand calculations easier.
I simplified the structure to just rigid frames to make me possible to make the hand calculations and also for running the model in Karamba in the best way.
I first calculated the total load of one of the middle modules of the roof and then I divided it by the beams so i was able to get the point loads in each column and also for getting the Mf which then I used to get the Maximum statical moment of area about y-axis which allowed me to get the dimension of the steel cross sections with s300 steel in the beams.
After that, I calculated the columns using just the compression load and the reactions which gave me a really thin cross section that might change if we add other lateral forces and the bending in the columns.
After the hand calculations, I adjusted the cross sections to fit my preliminary dimensions and realized that they fit. Also, I could realize that the reactions and Mf are really close to the values that I got. Even with the slenderness of the columns, the structure just presents a maximum deformation less than 7 mm.
Furthermore, I could realize that even when all the columns in the system are working in compression, the ones on each end work in tension, which means that those ones could probably be even thinner.