For a number of reasons this isn't as useful as you might hope, many have been mentioned (the mass on the extruder head being perhaps the most killer)
That said it seems like it is fast enough that you could connect the filament coming out of it into a typical filament extruder head and use the slack available as a signal to turn on the filament maker or not.
That would mean you would always have "fresh" filament to work with, and in moist environments that can improve repeat ability since PLA especially doesn't "age" well in humid environments.
That said it seems like it is fast enough that you could connect the filament coming out of it into a typical filament extruder head and use the slack available as a signal to turn on the filament maker or not.
That would mean you would always have "fresh" filament to work with, and in moist environments that can improve repeat ability since PLA especially doesn't "age" well in humid environments.