Ever wish you could see what you were modeling in real time or for

Ever wish you could see what you were modeling in real time or for your printer to print as you model? This paper shows some progress towards that goal.
https://www.youtube.com/attribution_link?a=EV1cG-6fIZ4&u=/watch?v%3Dlf3ViWEeKqc%26feature%3Dshare

This is interesting but there are obvious limitations such as you can only model additively, not subractive. You’re also limited by the clearances of the nozzle. I’m much more impressed with the printer design.

Real amazing