I did a little reading up on it. Apparently it’s hard to make it work unless all the pieces you’re melting are the same size, and any impurity, even dust, can cause issues. And that’s before you even get to the point where you’re trying to extrude a perfectly sized filament.
Also, given how cheap the filament is, there probably isn’t enough incentive to do this on a commercial scale. Otherwise someone could design a machine that could be sold to shops that sold 3d-printing stuff so they could recycle filament for their customers.
I did a little reading up on it. Apparently it’s hard to make it work unless all the pieces you’re melting are the same size, and any impurity, even dust, can cause issues. And that’s before you even get to the point where you’re trying to extrude a perfectly sized filament.
Also, given how cheap the filament is, there probably isn’t enough incentive to do this on a commercial scale. Otherwise someone could design a machine that could be sold to shops that sold 3d-printing stuff so they could recycle filament for their customers.