HomeHacker News Show HN: I wrote a free book on mastering OpenSCAD https://ift.tt/3qSnk37 byHat hair -March 17, 2021 0 Show HN: I wrote a free book on mastering OpenSCAD https://ift.tt/3vBXfJ9 March 17, 2021 at 02:21PM Tags: Hacker News Facebook Twitter