Kupros Launches Cu29 V2, a Conductive Filament for 3D Printed Electronics

Kupros is trying to turn desktop 3D printers into electronics manufacturing platforms.

The Indiana-based company has released Cu29 V2, a second-generation conductive filament that prints on standard consumer FFF and FDM machines. The goal is to move beyond simple conductive traces and into embedded electronics, conformal antennas, and sensors.

Cu29 is an all-metal conductive filament. The first generation proved the concept was possible. The second generation addresses the workflow friction that early adopters encountered. Kupros CEO Ramsdell said the company spent the last year printing, breaking things, rebuilding them, and listening to users to understand where the process slowed them down.

The new workflow is patent-pending. It expands Cu29 beyond traces into embedded electronics, meaning users could print functional circuitry directly inside a part during a standard FDM job. Test articles have already been sent to Oak Ridge National Laboratory for evaluation.

If the approach works at scale, it changes what a desktop 3D printer can do. Instead of only mechanical parts, the machine becomes a platform for producing functional electronic components. That is a shift from the current market of conductive filaments, which mostly offer limited trace printing with questionable reliability.

The initial batch of 90 kilograms of Cu29 V2 has already sold out, suggesting real demand from engineers and researchers who want to experiment with printed electronics without industrial equipment.