great design and cool "mechanics". the clamping mechanism for the filament is ingenious. Since I have no(!) idea how to programmatically create 3D structures or, no clue how to operate openSCAD .. how can I make the thread of the inner grommet longer?¿ I don't want to use the seethru ikea boxes and the wall thickness I have is about 8mm .. I have tried changing numbers but it just won't work ..
thanks for everything