Elevation model from a part of São Paulo

thingiverse

The X/Y scale is set at 1:50,000 and Z scale at 1:10,000 for easier terrain visualization. I created this using a QGIS shapefile in Rhino, utilizing the patch command to achieve this result. As a result, there might be some deviation from what you'd get with triangulated points, but let's face it - there will also be discrepancies between triangulated models and real-world terrain, so it doesn't make much of a difference in the end. Using the same method for generating larger models to be created on a CNC router would be great, but since my CNC router isn't finished yet, this serves as a suitable proof of concept. Models like these could really benefit a topography class. The model was printed with ABS plastic at 0.8mm nozzle size and 0.4mm layer height, but unfortunately, I forgot to enable retraction during the print process. To further develop this project, I'd like to create a PETG chocolate mold using vacuum forming based on this model.