Digital prototype of a physical 3D model

Before I started making a physical 3D model, I decided to make a digital 3D model in SketchUp. It helped me see how the building would look in a three-dimensional dimension, how people would enter the building and move in it. Also, the digital 3D model makes it possible to change the building a little if some of its elements do not fit and get the exact dimensions of the parts of the building that I can use by cutting parts of cardboard for a physical 3D model.

Final digital outcome (prototype)

Process 

I made this 3D model from the planes that I created by drawing lines and connecting them.

In this way I made a pyramid model. Before that, I decided on the sizes. I tried to choose sizes that would be comfortable for people inside. Therefore, I made an upright pyramid 8 m high (since there are two levels inside) and at an angle of 30 degrees in the corners, so that the space there could be used. I also drew a window on the front wall.

Then I removed the plane where the window should be because this plane was at an angle and I made a new plane at an angle of 90 degrees to the floor.

After that, I copied the pyramid and turned it over to get an inverted pyramid. Then I lowered it into the ground to make the floor plane, and also moved the back wall to get more floor area. Then I cut out the doors and glass openings. I did it by drawing lines in the place where I need it and then just deleted the planes that I got there. I also added materials.

Then I made ramp ways inside the pyramid. To do this, I drew the plane with lines and used the “movement” tool. I chose one of the lines and lifted it up. That's how I got the ramp.

Then I moved the back pyramid to the front one so that their walls crossed a little and chose the "intersection of faces" tool. This allowed me to get the same plane on the walls of the two pyramids. Then I moved the back pyramid to its previous place. After that, I drew the walls between the two pyramids with lines using the planes on the pyramids as navigation. I did it to get a group of rooms with an entrance, toilets and an elevator.

Then I drew the lines of the doors and walls inside using three axes of three-dimensional space.

After that, I made shelters outside near the building. I made them as a triangular shape to complement the composition on the sides of the building. To do this, I made a small pyramid in the same proportions as the big one and drew planes through it. After that, I selected the objects and used the "crossing of faces" tool. Then I removed the extra plane. 

Then I used the "offset" tool and got the same triangular shape inside each plane. Then I removed the inner planes and used the "extrusion" tool to make the thickness where the seats will be located.

Digital templates with dimensions

I also copied and moved all the faces of the 3D model to a new place and added dimensions to them with the "roulette" tool. Next, I'm going to use these elements as a drawing with dimensions for doing a physical 3D model.