robertsamples/indx-cad

INDX-CAD is a collection of reverse engineered CAD files for a 3D printer model originally released by Prusa. The original printable model was licensed under Creative Commons BY-SA 4.0 and uploaded to Printables, but the original file and any remixes based on it were later taken down from that site. This repository exists to preserve and continue that work in a different location. The author took Prusa's original 3D mesh, which is included here as a 3mf file for archival reasons, and worked backward from it to extract parametric geometry, the kind of CAD data that lets you edit individual features and dimensions rather than just move points on a mesh. That geometry was then converted into the STEP format, a standard file type used to move CAD models between different design programs. The README is upfront that this is not a finished, polished conversion. Parts that were originally CNC machined converted cleanly into parametric geometry, but parts that were injection molded, which tend to have more rounded, filleted edges, did not convert as well and still need work. The author describes actively improving the geometry over time and has deliberately chosen to host this project somewhere less visible than typical 3D printing file sites, rather than on Printables itself. Beyond the description and the archived original file, the README contains only a few reference images of the model and does not go into further detail about tools used, installation steps, or how to use the resulting files. Anyone interested in the actual CAD workflow or software involved would need to look at the files themselves.