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Robotic 3D Printing

Large-scale 3D printing using a robotic arm.

Year
2019
Role
Design engineering
Tags
Robotic ArmFabrication

Robotic 3D printing that treats transparent PLA as a material for shaping light.

This research treats printing as both fabrication and optics. A robotic arm extrudes transparent PLA at architectural scale, building layered surfaces that bend, catch, and scatter light.

Robotic arm extruding transparent PLA onto a large printed form.

The study compared samples across paths, densities, layer heights, and curvatures. Each one behaves differently under light, which makes the print settings themselves the optical variables.

Transparent PLA print samples mounted for comparison.

Scaled up, the effect becomes spatial. The transparent layers stop reading as test pieces and start to form a ring of refraction and shadow you can stand inside.

Large transparent PLA ring inspected from above.

The system ran on a KUKA KR90 R3100 arm with extrusion, temperature, and cooling controls over a fixed print board. Speed, heat, and filament behavior all showed up in the final surface.

Labeled KUKA robotic 3D printing system diagram with controls and print area.

Inspection was part of the work: we checked layer quality, transparency, and how each imperfection changed the way light moved through the form.

Team inspecting the layered transparent PLA surface.

We also built the end-effector itself: spool holder, extruder, hot end, fan, flange adapter, compressor, and PLA nozzle. The next step is taking the material findings into custom light performances.

Detailed adapter diagram for the robotic PLA extrusion tool.