4D Printer, Prusa with extended E-Axis
I was able to open the page. Below is a link to a YouTube video on that page. The page is all in German but the video has subtitles. I wonder if this might be something useful. Anyone else want to weigh in? It does look like a modification to a Prusa/Merlin X/Y with the extruder tilted on 45 degree angle.
The claim is that with some code modification and new Slicing mechanism you can print without ANY supports.