A case study on the production of illuminated signage letters and large-format logos using industrial 3D printing.

Osnovne informacije
Location: Retail stores across Serbia
Client: Sinsay
Service: 3D Printing of Signage Letters and Logos
Format: Large format (interior and exterior logo signage)
Purpose: Signature Signage – Space Branding and Illuminated Signage
About the project
To support the branding of retail spaces, illuminated signage elements were produced for the Sinsay retail chain.
The project included the production of:
- An illuminated interior logo
- An exterior illuminated sign
- Illuminated department signs inside the stores
The project aimed to:
- Preserve the brand’s distinctive identity
- Achieve a high visual quality for all illuminated elements
- Ensure durable, structurally stable construction and easy maintenance


Challenge
Sinsay signage elements have distinctive shapes defined by the brand’s graphic standards, requiring:
- Precise reproduction of complex letterforms
- Consistency across all branding elements
- High-quality finishing and attention to detail, as the elements are positioned close to viewers
Additional challenges included:
- Coordinating interior and exterior signage to ensure a consistent visual appearance
- Achieving consistent illumination both indoors and outdoors
- Ensuring long-term durability in everyday use
Conventional production methods for these types of elements would require:
- Multiple production stages and less precise manual fabrication
- More complex joining of components due to limitations in conventional manufacturing methods
- Significantly longer production and delivery times
Result
For this project, industrial 3D printing of signage letters using high-quality, weather-resistant materials was employed.
This approach enabled:
✔ High-precision production of complex shapes
✔ A stable and uniform letter structure
✔ Fewer joints by producing letters as single pieces
✔ Easier quality control at every stage of production
The letter structure was designed as a combination of:
- 3D-printed PETG sidewalls
- Front panels made of translucent acrylic (Perspex/Plexiglas)
- PVC (Forex) backing panels
- High-quality illumination using LED modules with optical lenses


Technical Specifications
- Technology: Industrial 3D printing
- Sidewall material: PETG
- Front panel: Acrylic (Perspex/Plexiglas)
- Backing panel: PVC (Forex)
- Type: Illuminated logo and signage
- Location: Retail stores across Serbia
Result
The final result is illuminated logos and signage that:
✔ Preserve the brand’s authentic identity
✔ Offer a high level of manufacturing precision
✔ Ensure even and uniform illumination
✔ Maintain their visual quality over time
The combination of 3D printing and conventional materials delivered an outstanding visual effect.


Zašto je 3D štampa pravi izbor?
Advantages of 3D Printing
✔ High-precision production of complex shapes
✔ Fewer joints and improved structural stability
✔ Production Process Optimization
✔ High-quality finish
✔ Design Flexibility
✔ Eliminating imprecise, manual fabrication of individual components
Production Process
Analysis and Preparation
Dimensions and technical requirements are defined based on the required logo type.
3D Modeling
Preparing the model for precise fabrication of the letter sidewalls.
3D Printing
Large-format printing of components using PETG material.
Front Panel Fabrication
Laser cutting of the acrylic sign face.
Assembly and Lighting
Integration of LED lighting and final assembly.
Installation
Installing the signage indoors and on the building façade, with a suitable supporting structure wherever necessary.

Where Is This Approach Used?
This production method is most commonly used for:
- Restaurants and cafés
- Retail brands
- Hotels
- Shopping centres
- Commercial space branding
Looking for a Similar Solution?
Looking for a Similar Solution?
If you are planning to produce:
- Illuminated letters or shapes
- Logos
- Branding elements
Please send us:
- Dimensions
- Your logo
- Preferred colours
We will prepare a production proposal tailored to your needs.


3D Printing for Signage in Serbia
Grafix Belgrade provides industrial 3D printing of signage letters and logos for clients across Serbia.
We specialise in:
- Illuminated signage
- Large-format logos
- Projects for the hospitality and retail sectors