Category Archives: project 3

P3: Klapper/Lewis Fabrication

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After a few modifications on the skin, we imported the skyscraper from Maya to Rhino. To fabricate the upper portion of the tower, we took contours at regular intervals to make the floor plates. To make the skin, we used a panelizing grasshopper script and created flat, perforated plates to wrap around the building. The panels were unrolled, flattened, and sent to Autocad to make laser-cutting vectors. The chipboard pieces will then be folded and glued to make the prototype of the top portion of the tower.

fillit: better late than never….

Open rhino
Open grasshopper
In grasshopper double click and type fillet:  there will be two choices choose the one that is like the one in the screen capture above
In grasshopper double click and type slider:  number slider
In grasshopper Connect the slider button to the fillet button
In grasshopper double click and type curve: select curve from rhino
In grasshopper Connect the slider button to the fillet button
In rhino draw a polyline, it can have several corners, or only one.
In rhino select the polyline,  in grasshopper right click the curve button and select  “set one curve”
You should now see a curve at the corners of the polyline,  by playing with the slider button you can adjust the curve of the fillet.

P3_06_Qinglan luo_Offset Loose

-Open Grasshopper.

-Draw a surface in Rhino.

-Connect the surface with “srf” in Grasshooper.

-Select “Offset Loose” which under “Surface”.

-Drop line from “Srf”, plug into “S” on “Offset Losse”.

-Double clink, type in “Slider”, select “Number Slider”.

-Drop line from “Slider” plug into “D” on “Offset Loose”, change the range of slinder.

-Then could see a surface could be move out of the basic surface.

If I set an “Explode” tool I can see the point on each angle of that surface, but I did not figure out how to make those point moved individually. So I did not change the surface.


I started out by selecting Surface:

– Next select Sphere

– Next Select Vector

– Next Select Grid Triangular connect (P) from this to (B) of sphere

– Next double click and type slider connect to (R) of sphere

– next type (sec) and select brep plane now connect output (S) of sphere to (B) of section

– next type xy to make a plane and connect (P) to (P) of section

With this you can create a grid of spheres with the ability to change the size using the slider. and the section cut allows you to cut the shapes directly in the middle, you can hide the rest and just expose the cuts of the spheres for a pattern. both can be used to create 3 dimensional grided patterns of spheres or can be used with section cut to make a 2d pattern


In order to do this sweep, make two curvy parallel lines.  One is horizontal to the ground; the other is vertical.  Then, connect the ends of these curvy lines together by using striaght lines.  Next, click the “Sweep  2″ button.  The command bar will direct you to click the two lines you want the sweep to form between (the curvy lines), and then it will tell you to click the two boundary lines (the straight lines.  Finally, press enter and the sweep will show up.

In order to put these geometries also into grasshopper, you just need to create two line elements and two curve elements.  Set these lines and curves as the corresponding lines and curves in rhino.  Then, type “Sweep 2″ and connect as shown.

When I made my curve, though, I had a glitch.  I could not tag the line elements in Rhino.  Thus, I had to go back and erase the lines elements in Rhino and re-create the line tabs in Grasshopper.  Then, when I pressed “Set As”, I had to create new connector lines in Rhino.   Finally, I needed to right click in Grasshopper and “Bake” these lines to make them exist as real elements in Rhino.


To find the cylinder button in grasshopper go under the surface tab.  There will be another set of tabs within this, and the cylinder button is within the primitive tab.  Click the button that has a cylinder on it and simply place it in your grasshopper file.  From there I connected sliders to the cylinder in order to control some of its dimensions.

Extrude Point

In order to extrude a point, Grasshopper wanted me to create a planar surface in Rhino.

1) I used the four point surface tool and created the surface shown above.

2) I created a point within this surface.

3) I selected the surface and opened it in Grasshopper.

4) I then linked the “surface” command in grasshopper to my plane, and did the same thing with the point I created.

5) I connected these with the “extrude” command in Grasshopper and completed the circuit with a Brep.

This is the set-up needed when one wants to take a point out of a planar surface and extrude it.

Surface Box 2Pt

Step 1: From Rhino go into Grasshopper, click on surface and under primitive click Box 2Pt.

Step 2: Double click in Grasshopper. Type point. And insert a point. Do this twice.

Step 3: Go into Rhino and make two points. Place one in your perpective view and another in your front view. You must do this in order to obtain both the height and width of the box.

Step 4: Go back to Grasshopper. Right click one of the points, select “set one point”, click on one of the points in Rhino and repeat for the second point.

Step 5: Connect one of the points to the A spot in Grasshopper and the other point to the B spot. You have officially made a 2Pt Box!

Box 2Pt

Step 6: If you want to go even farther and be able to control the height and width of the box you can double click and type move in Grasshopper, do this twice. Then connect the move to the two places where the points were connected and connect the points to the G’s on the left side of the move.

Step 7: Double click again in Grasshopper and type in Unit Y. Do this twice. Connect the Y’s to the T spots on the move tool.

Step 8: Double click in Grasshopper and type slider. Do this twice. Then connect the sliders to the F on the Y tool. And now you can control the size of your box. You may need to right click the slider and choose edit to change your minimum and maximum amounts in order to change your box most drastically.

Box 2Pt Continued

P3_Samantha O’Connor_06

Definition – the Box 2Pt function in Grasshopper creates a box that is defined by two points, one for the height of the box and the other for the width of the box. This is a fairly simple command, but can be made more complex by controlling it’s measurements and you can even begin to explode the box and configure it that way.

p3_Domain Box_Ashley Sojda_06

For this command, I created a rectangle command and drew a rectangle in Rhino and then put in my command, domain box, and connected the two. From that on my rectangular plane a 3D cube was formed.

Planar surface

First you must make a curved line with rhino.  You then go onto grasshopper and link the curve to a curve node.

Next you must select the planar surface option in grasshopper and link the curve node into the side of the planar node that is labeled E.

You must then create a second curved line and loft it in rhino.  You then create a surface node in grasshopper and link the lofted surface of rhino to the grasshopper node.

The last step would then be to link the surface node to the planar surface node, connecting it to the side labeled S.