K4 Engineering: Making the Invisible Visible.
Bridging the gap between physical reality and digital insight through 3D Design, 3D Printing, Hardware, Software, IoT — and a touch of Art.
Our Expertise
A studio at the intersection of disciplines.
Five capabilities, one toolkit — from first sketch to a connected, physical artefact.
3D Design & Prototyping
Parametric CAD, generative geometry, and rapid functional prototypes.
Advanced 3D Printing
FDM, SLA and SLS production for engineering-grade parts and enclosures.
Mechatronics & Hardware
Custom PCBs, sensors, actuators and embedded firmware for precise control.
Software & IoT Integration
Edge-to-cloud pipelines, real-time dashboards and automated control loops.
Artistic Data Visualization
Turning signals and datasets into sculptural, interactive experiences.
Featured Project
The Smart Tree — Interactive 3D Presentation Model
Presented at the Deutsche Baumpflegetage 2026 in Augsburg.
We designed and 3D-printed an interactive presentation model for an IoT tree-care system that measures sap flow and manages precision watering and supplements. Our model translates that real-time sensor data into a tangible, glowing trunk — giving visitors at the fair an intuitive, physical way to see the technology in action.
Methodology
From concept to a physical, interactive IoT model.
01 — Discover
Workshop the problem, the audience and the invisible signal to surface.
02 — Design
Mechanical CAD, PCB schematics and software architecture in parallel.
03 — Fabricate
3D-print enclosures, assemble electronics, flash firmware, iterate fast.
04 — Connect
Wire up IoT telemetry, cloud sync and control logic.
05 — Reveal
Ship a tangible, interactive model with live data — public-ready.
Have an invisible signal to surface?
Let's design the hardware, the software, and the story around it.