Vortex funnel

Not MineFound: https://www.thingiverse.com/thing:5127683/filesSummaryWell a funnel, right? :)More pictures and some videos on my blog, questions and discussion also on reddit.Print SettingsPrinter brand:PrusaPrinter:I3 MK3SRafts:NoSupports:NoResolution:0.3Infill:0%Filament brand:PrusamentFilament color:Ocean BlueFilament material:PETGNotes:To be printed with 0.6mm nozzle, but 0.4 should also work fine.How I Designed ThisDesigned in FreeCAD 0.19source parametrized file attached too.