Prusa i3 mk2 ANTIVIBRATION FEET by Prusa Research

i was looking for an anti noise feet for my printer and turns out prusa research already made one. but the thing about the files they shared is stl file is a solid and gcode files are distorted. i think gcode was made by hand and instead of offsetting they moved the vectors.

the link to prusa research files: http://www.prusa3d.com/prusa-i3-printable-parts/
gcode distortion: https://prnt.sc/hrbmvv

maybe solid stl model can be printed as just a shell and without caps but i only use PrusaCon