Fine Interlock Lestenec by Che Chia Hsu is a highly esteemed winner of the very prestigious 2025 Železna nagrada A' Design Award in Oblikovanje svetil in razsvetljave Competition Category.

ŽeleznaRazsvetljava· 2025

Fine Interlock Lestenec

by Che Chia Hsu

Železna nagrada A' Design Award Winner in Razsvetljava Category

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Verified Award Winner

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The Design

About Fine Interlock Lestenec

Zaradi tehničnih in strojnih omejitev se oblika tradicionalnih lesenih čepov ne more bistveno spreminjati. S kombiniranjem mehkih stopničastih čepov z metodami CNC obdelave se podre vtis konvencionalne čepne zveze, čepna obrt pa pridobi več možnosti v obliki in uporabi, kar ji resnično vdihne življenje. Navdihnjena z eksperimentalnim modeliranjem je oblika lastovičjega repa in učinek zvijanja dela podobna vijačni strukturi DNK, zato smo poskušali razvijati v tej smeri.

The Recognition

About the Železna nagrada A' Design Award

Fine Interlock Lestenec je prejemnik Železne nagrade A' Design Award, prestižnega priznanja, ki se podeljuje dobrim oblikovanjem, ki izpolnjujejo profesionalne in industrijske zahteve, pričakovane od dobro zasnovanih stvaritev. Prejemniki Železne nagrade kažejo veliko spretnost, visoko specializacijo, strokovno razumevanje in ustvarjalne zmožnosti svojih ustvarjalcev. Od Fine Interlock Lestenec se pričakuje, da bo visoko cenjena, občudovana in ljubljena stvaritev, ki je praktična in inovativna. To oblikovanje, nagrajeno z Železno nagrado A' Design Award, vključuje najboljše prakse panoge in ima kompetentne tehnične lastnosti, povezane s strokovnim znanjem in talentom. Zaradi svoje temeljitosti si Fine Interlock Lestenec zasluži spoštovanje in je zasnovan tako, da zagotavlja izboljšave kakovosti življenja, ki pomagajo narediti svet boljši kraj.

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties: Due to technical and machine limitations, the shape of traditional wooden tenons can’t change too much. By combining soft tenon steps with CNC processing methods, the impression of the conventional tenon joint is subverted, and tenon craft has more possibilities in shape and application, genuinely making it come alive.
Dimensions & Packaging: 840mm x 100mm x 20mm
Tags: Authentic, delicate, precise, unique, breathtaking
Production Technology: CNC processing is used to create more complex teno shapes.Aluminum was chosen as the primary material, and a mirror effect was achieved through polished chrome plating. Choosing the method of SLA printing, transparent soft resin can quickly produce transparent objects with complex shapes and grind the surface into a matte surface to improve its light-guiding effect.
Design Challenge: There are two biggest challenges during the development. The first challenge is that I have difficulties thinking outside the box and coming up with a unique design, so I seek ideas through numerous experiments. The second challenge is that the actual material is very heavy, so I must redesign the entire structure of my product
Research: In the beginning, I collected and studied numerous pieces of knowledge and ideas about the traditional technique of Chinese tenon joints through books. The next step to know better about the tenon joint was to learn how to perform this technique from a woodcraft master. After this, I used a 3D printer to test and verify my design and idea. In the final step, I consulted an ironworker’s ideas to apply the actual material to my design and make it work.
Inspiration: I am fascinated by the calculation and processing precision required for this traditional craft of woodworking joints, and the final product that is presented. Inspired by experimental modeling, I discovered that the shape of the dovetail joint and the twisting effect of the work are similar to the helical structure of DNA and thus tried to develop in this direction.
Project Duration: The project started in August 2024 in Taiwan and finished in january 2025 in Taiwan.
Operation Flow: You can see the light only come through the tenon joint which indicates the detail of the design and the main theme of the entire concept.