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RepRapMicron (μRepRap) is an open-source project extending RepRap to achieve micron-scale 3D printing using 3D-printed flexure mechanisms, OpenSCAD models, and GCODE/GRBL tooling. The PIKA version, now in fourth Alpha, offers print-in-place kinematic assemblies with micron-precision motion and functional sub-4μm resin droplet deposition.
An experiment with coding agents using CadQuery and OpenSCAD revealed that visual renders and tool status reports missed critical CAD defects, which were only caught by numerical checks like volume measurements.
The author describes how to mount a pen to a 3D printer to write postcards, including designing a pen adapter in OpenSCAD and using Inkscape and svg2gcode to generate G-code. The project overcomes a homing safety issue with custom control software.
ModelRift benchmarks LLMs on generating OpenSCAD code for the Pantheon, with Antigravity 2.0 achieving the top result.
A blind developer describes using AI coding tools to build a production web platform for generating 3D-printable braille objects. He emphasizes that AI compressed the implementation loop without replacing domain expertise, accessibility judgment, or lived experience, highlighting how AI can empower domain experts with limited engineering resources.