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 IoT System
Debuted at the Baumpflegetag Fair in Augsburg, May 2026.
We developed an innovative IoT sensor system that measures liquid and sap flow inside a tree in real-time. The system generates a comprehensive digital health profile for the tree and automatically controls precise watering and supplement values.
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.