Bandstuhl

JHomes_Seating Assignment_Final_Page_01 Grasshopper Definitions

I created this chair using a series of grasshopper definitions where the geometry was based upon a brep of the chair’s general form. A series of sections were taken, with the density controlled by the number of sections cut through the form. Their XY angles determined by a “Random” function and their YZ angularity based upon the added slider. The sections generated were then offset, with thickness being determined by the amplitude of this offset. The sections were deplaned & the points on each line were reorder so that a loft between them would generate only flat bands and then a conditional statement was added such that any pairing that did not occur between two polylines with the same number of segments would be culled.

Design Driver - Angularity Design Driver - Density Design Driver - Amplitude (Thickness) Bandstuhl Replica

Number ( 8 ), Amplitude ( 2.34 ), Plane Rotation ( 67 )

Bandstuhl Replica - Thin

Number ( 15 ), Amplitude ( .75 ), Plane Rotation ( 14 )

Bandstuhl Barcode

Number ( 15 ), Amplitude ( .31 ), Plane Rotation ( Disconnected )

Band-Stuhl

Number ( 4 ), Amplitude ( 10 ), Plane Rotation ( Disconnected )Bandfuhl

Number ( 15 ), Amplitude ( 6.26 ), Plane Rotation ( Disconnected )

Parametric Bench

tokyobenchUsing the Frank Ghery Tokyo Bench as precedent I developed a parametric bench that could be fit to any input planar curve (or at least any that I tried – there is probably a curve out there that will break it.)

The Grasshopper Definition allowed the following parameters to be manipulated:

  1. Input Curve
  2. Density of “spine” elements in each section
  3. Rib count (also number of sections)
  4. Seat Depth 1
  5. Seat Depth 2
  6. Seat Height 1
  7. Seat Height 2
  8. Position of defining profiles relative to (t) on input curve
  9. Range of lengths of protruding end spines

Due to what I am currently guessing is a data matching problem the model runs a little heavy, so I did not animate the parameters. When I have a chance to refactor the definition I will document that process here.

Five Family Members

To keep things simple I only manipulate parameters 1-7 (with the exception of #5 where I went CRAZY)

bench01

bench02

bench03

bench04

bench05