I am hoping to make my own stackable coasters, by creating a sketchup model, exporting it to a STL file and getting it sent off to be 3D printed. When uploaded to the 3D printing website, it claims the file is ‘Broken’.
I am a newbie to sketchup and 3D modelling so any help would be much appreciated! Thanks
coaster 3.skp (1.3 MB)