Extrude-Transform Polygons: CorkScrew

thingiverse

Renosis noted that optimizing the extrusion process in OpenSCAD could be achieved by directly manipulating polygons, resulting in faster rendering times and smaller file sizes. For a simple triangle, I'm now able to extrude it along the Z-axis while translating and rotating within the X-Y plane, ensuring seamless matching and minimum face count. This approach allows for controlling object smoothness directly, similar to OpenSCAD's $fn system variable. As a result, compiled files render quickly in minutes rather than hours, even for high polycounts, while STL file sizes are significantly reduced (183 KB), importing seamlessly into OpenSCAD. The code for this series is clean and easily experimentable due to the fast compilation time. For further information and access to the GitHub repository, visit https://github.com/syvwlch/Thingiverse-Projects/tree/master/ExtrudePolygon.