DNA DISCRETE NETWORK ASSEMBLY
SHAJAY BHOOSHAN STUDIO PHILIPP SIEDLER FEDERICO BORELLO BEGUM AYDINOGLU
DRL 2015/2017 ARCHITECTURAL ASSOCIATION
PROTOTYPE 1.0 MANUAL PROTOTYPING
This generation of prototype is introducing a new system which is consisting of 3 layers; skeleton, cable and wrapping. Cable(thread) system acts as a reinforcing layer for both wrapping and compression network. The prototype aims to explore variations of different qualities of surfaces by changing the parameters such as thread density, wrapping layers, threading sequences and type of geometry. All the sequences for threading and wrapping has been recorded in terms of consistency and comparability. Materials: MDF, Nylon fishing wire, LDPE Stretch Film
APPROACH 1 CHIDORI MANUAL PROTOTYPING
1,5 cm
0,2 cm
0,5 cm
30 cm
THREADING Threading is important in order to transfer the forces in all directions that are applied to compression network. After experimenting with different sequences and densities of threading, we evaluated the models in terms of strength and complexity. Using only the outline of the geometry and interpolating the naked edges, required tensile strength and equilibrium is maintained. Fishing wire has been used as a cable due to its preferable physical properties. Its high tensile strength makes the wire very hard to break and helping the system to carry maximum amount of loads. Threading also helps the system to generate wrapping paths and by that having a consistent wrapping sequence documentation has been achieved. AVERAGE BREAKING STRAIN 12oz 1lb 2oz 1lb 12oz 2lb 2lb 6oz 2lb 14oz 3lb 4oz 4lb 12oz 5lb 10oz 6lb 8oz 7lb 12oz 9lb 10lb 4oz 11lb 6oz DIAMETER 0.06mm 0.07mm 0.08mm 0.09mm 0.10mm 0.11mm 0.12mm 0.14mm 0.16mm 0.18mm 0.20mm 0.22mm 0.24mm 0.26mm
 STRESS vs STRAIN TEST FOR 4 KG  STRESS vs STRAIN TEST FOR 10 KG
Threadıng sequence In order to document and rebuild the threading and wrapping studies, a custom code has been generated. For this documentation system, directionality, start point, end point, knot location, type of interpolation, location of thread, snd location of stick are the parameters. This parameters has been coded for each relevant models for the prototype and set as a main documentation system for continous prototypes as well.
 PATH GENERATION LOGIC FOR WRAPPING
Plane Generation 2 Imaginary Plane/Plane Selection Path Reference Plane Generation 3
Threading Outline Face Generation Midpoints of Face Edges
All Reference Paths Plane Generation 1 Path References Path Generation for Wrapping
 THE CHIDORI NODE
The CHIDORI system has been considered as sticks interlocking strategy which guarantees the absence of a physical node but relies only on contact faces. This method allowed a fast and intuitive fabrication of small scale prototype without any use of nails or screws.
 HOOK SLOTTING STRATEGY The CHIDORI system has been considered as sticks interlocking strategy which guarantees the absence of a physical node but relies only on contact faces. This method allowed a fast and intuitive fabrication of small scale prototype without any use of nails or screws.
 Image 01 Robotically fabricated timber finger joint, Oliver David Krieg.
 Image 02 Robotically fabricated timber finger joint, ICD Uni Stuttgart.
 Image 03 Traditional hand made timber finger joint, David Stanton.
 solving different seam angles
+90° -90° 90°
 Finger joint bolder connection node
 Tetrahedron skeleton prototype
 Wrapped and wire-threaded tetrahedron
 Radiolaria from 20 tetrahedral nodes. Wrapped joint detail
 Wrapped radiolaria, 3 types of enclosure, semi-, fully-. closed and opened