Neat idea. Still needs a purge block of course, but I wonder if it could be altered to extrude it into another "purge filament" which could be used again as scr

Neat idea. Still needs a purge block of course, but I wonder if it could be altered to extrude it into another "purge filament" which could be used again as scratch filament. I guess there might be a limit on the number of times material can be extruded from a hot end before it starts to degrade?