Not only that Ben has already create several 3d printers, 3d printers also become more and more popular and also achievable.
Unfortunatly spooled 3d filament is a lot more expensive than pellets are.
Wouldnt it be create to build an machine that melts PLA pellets through an extruder and roll it up on a spool?
That would definetly save a lot of money over the time.
Best regards, Stefan
