This is a adapter for bushings, eg. broncebearing.
I've paused the print at 19.75mm and inserted the broncebushings, then resumed printing.
I used http://prusaprinters.org/color-print/ for that.
make a few tests while adjusting the inner diameter of the adapter, be sure the inserted bushing fits in tight!
bronce_bushing_adapter.scad | 4.7KB | |
bronce_bushing_adapter.stl | 295.7KB |