FDM and 3D printing in general is a rapid prototyping tool. Anyone who thinks we will see low-cost parts and products make by 3D printing will need to start by printing off a time machine. Sure the process will become faster but as Scotty famously said “ye canna break the lawsa physics!”
All this discussion of building things using printers has me confused. I always thought 3D printing was for rapid prototyping, not production. It’s pretty time consuming to lay down 40 micron layers. Time machine, indeed...but it might be easier to accelerate these printers to 0.99999C.
How do we know he isn’t the fellow who invented it?