We’ve all heard stories of the dangers of 3D printing, with fires from runaway hot ends or dodgy heated build plates being the main hazards. But what about the particulates? Can they actually…
Hmm I didnt know you could recycle filament. That is certainly positive. So that would mean you could take a 3D printed object and melt it down (?) and make something new out of it? Is it infinitely recyclable or does it lose certain properties? And is that easy to do and do people actually do that? (I don’t mean to sound negative, I’m genuinely curious)
This is coming from a big 3d printing nerd, but no, the average person is not able to reuse filament once it’s been used. There are commerically available machines made for turning bits of filament into reusable filament, but the process is incredibly difficult to manage on a hobby scale (you need to make sure your scrap is completely free of any debris or your filament will cause nonstop jams and clogs), the machines are very expensive, and you need a ton of scrap to get a usable amount of filament. I think that there are companies that offer recycling as a service, but again I can’t imagine it being viable on a hobbyist level.
I recognize that plastic waste is obviously a huge issue when it comes to 3d printing, and I agree that some aspects of the hobby can be deemed wasteful. One thing I think that is often overlooked though when it comes to this discussion is the reduction in shipping and handling waste 3d printing provides. Sure, I don’t really need that stupid Baby Yoda print, but if I was already going to buy a little figurine or plushy or whatever, at least the one I printed doesn’t come sealed between two pieces of form fit plastic, held together by plastic coated twist ties, all presented in a plastic-cardboard box with a see-through plastic window that was shipped from mainland China - all of which is getting tossed out. The total waste produced for printing the thing is measured solely in the amount of filament I used and the electricity used to keep the printer running; when you consider that most people print in PLA (which is supposed to be biodegradable) and have electricity subsidized in some shape or form through renewables, the hobby seems much less wasteful than the more popular form of consumerism (buying shit).
You can get a pellet printer as a 2nd printer, either as a modification to an existing printer or as a complete printer, and then you don’t have to worry about most of the difficulties of recycling your waste. Just ensure your keep different types of plastic separate and stored in dry containers just like you would store filament. Then you just need a shredder, which are pretty cheap, and you can create small plastic chunks that will work in the place of pellets. This avoids most of the cost and difficulty associated with recycling, which largely comes from the extrusion process.
If you wind up needing to dry the pellets, its basically the same process as for filament and removing contaminants is less of a concern.
If you also do injection molding, the pellets can also be used for that.
While creating new filament on hobbyist scale is difficult, finding other ways to reuse the plastic at the hobbyist scale isn’t hard. Just requires being willing to do it and a little bit of creativity.
Hmm I didnt know you could recycle filament. That is certainly positive. So that would mean you could take a 3D printed object and melt it down (?) and make something new out of it? Is it infinitely recyclable or does it lose certain properties? And is that easy to do and do people actually do that? (I don’t mean to sound negative, I’m genuinely curious)
This is coming from a big 3d printing nerd, but no, the average person is not able to reuse filament once it’s been used. There are commerically available machines made for turning bits of filament into reusable filament, but the process is incredibly difficult to manage on a hobby scale (you need to make sure your scrap is completely free of any debris or your filament will cause nonstop jams and clogs), the machines are very expensive, and you need a ton of scrap to get a usable amount of filament. I think that there are companies that offer recycling as a service, but again I can’t imagine it being viable on a hobbyist level.
I recognize that plastic waste is obviously a huge issue when it comes to 3d printing, and I agree that some aspects of the hobby can be deemed wasteful. One thing I think that is often overlooked though when it comes to this discussion is the reduction in shipping and handling waste 3d printing provides. Sure, I don’t really need that stupid Baby Yoda print, but if I was already going to buy a little figurine or plushy or whatever, at least the one I printed doesn’t come sealed between two pieces of form fit plastic, held together by plastic coated twist ties, all presented in a plastic-cardboard box with a see-through plastic window that was shipped from mainland China - all of which is getting tossed out. The total waste produced for printing the thing is measured solely in the amount of filament I used and the electricity used to keep the printer running; when you consider that most people print in PLA (which is supposed to be biodegradable) and have electricity subsidized in some shape or form through renewables, the hobby seems much less wasteful than the more popular form of consumerism (buying shit).
You can get a pellet printer as a 2nd printer, either as a modification to an existing printer or as a complete printer, and then you don’t have to worry about most of the difficulties of recycling your waste. Just ensure your keep different types of plastic separate and stored in dry containers just like you would store filament. Then you just need a shredder, which are pretty cheap, and you can create small plastic chunks that will work in the place of pellets. This avoids most of the cost and difficulty associated with recycling, which largely comes from the extrusion process.
If you wind up needing to dry the pellets, its basically the same process as for filament and removing contaminants is less of a concern.
If you also do injection molding, the pellets can also be used for that.
While creating new filament on hobbyist scale is difficult, finding other ways to reuse the plastic at the hobbyist scale isn’t hard. Just requires being willing to do it and a little bit of creativity.