Wouldn't be the first time, promise it won't be the last.
I was reading that the earlier generations were concerned about the material being contaminated and not dispensing through the printheads if recycled - causing the printheads to clog.
Guess they fixed that problem.
LOL. Perhaps I was little harsh...
Yes, the early materials were somewhat to very expensive.
Yes, many of them are still difficult to recycle.
But today you can make serviceable filament from discarded soda bottles. There’s even a guy selling a bench-top shredder and extruder for that purpose.
Today the pallet of available materials is vast and the processes allow considerable variations in feedstock. One could tune their machine to make serviceable lost wax masters from ordinary paraffin or bee’s wax instead of the specialty waxes formulated for jewelery use.
Sintered powder machines can recycle all the unsintered material, with the only caveat being that the must be sieved to remove any damaged or stuck together grains. (and that you have to be careful to not mix differing formulations.
Like any other technology costs drop with experience and volume. You need to run as fast as you can just to stay caught up!