I more or less did this 2 weeks ago while testing the extruder for my 3d printer (and I'm no pioneer here). I used Kliment's (parent of thread) software to caus

I more or less did this 2 weeks ago while testing the extruder for my 3d printer (and I'm no pioneer here). I used Kliment's (parent of thread) software to cause filament to extrude from my 3d printer's nozzle (the hot end) while I tried to write letters to test it was working ok. Now someone is trying to claim this "new technology" is patentable.