Astrolabe - medieval - reconstruction

An astrolabe is an astronomical instrument enabling the user to identify stars and planets and their positions as well as being an aid to navigation. I have based this model on an instrument in the collection of the British Museum (1909,0617.1) dating back to 1326 - click this link for more information https://www.britishmuseum.org/collection/object/H_1909-0617-1 To learn more about the use of these instruments click this link https://en.wikipedia.org/wiki/Astrolabe I have used images for reference that are copyright of the Trustees of the British Museum and they are for non commerial use only - so I have made this model 'non-commercial use' I made the model in Zbrush and created a set of alphas in Procreate on the ipad closely following the markings on the original instrument. I used these in Substance Painter to create the etched details. This model is not really for 3d printing - the markings will not appear on the print. Source: Objaverse 1.0 / Sketchfab星盘（astrolabe）是一类天文仪器，使用者可借助其识别恒星、行星并确定其位置，同时亦可充当航海辅助工具。 本模型的制作原型为大英博物馆（British Museum）馆藏编号1909,0617.1的一件天文仪器，其年代可追溯至1326年——点击此链接可获取更多相关信息：https://www.britishmuseum.org/collection/object/H_1909-0617-1 若欲了解此类仪器的具体使用方法，可点击此链接：https://en.wikipedia.org/wiki/Astrolabe 本项目所使用的参考图片版权归大英博物馆托管会所有，且仅可用于非商业用途，因此本模型亦仅允许非商业使用。 本模型使用Zbrush制作，并在iPad端通过Procreate创建了一组Alpha纹理（alphas），严格复刻了原仪器上的标记细节。随后我在Substance Painter中利用这些纹理制作了蚀刻纹路。需注意，本模型并不适用于3D打印——打印成品将无法显示其上的标记细节。 来源：Objaverse 1.0 / Sketchfab