Silk workbench NURBS Surface modeling tools focused on low degree and seam continuity 0.1.5 2023-09-17 edwardvmills GPL-3 https://github.com/edwardvmills/Silk http://edwardvmills.github.io/NURBSlib_EVM/ https://github.com/edwardvmills/Silk/wiki https://wiki.freecad.org/Silk_Workbench Silk workbench Silk NURBS Surface modeling tools focused on low degree and seam continuity ./ Resources/Icons/Silk.svg 0.18.0 curves nurbs