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Got into 3D-printing a few years back. Intended to print some replacement parts, a few decorations and gadgets, and took care to not waste too much plastic. In the internet, there are pages dedicated to 3d models other people have printed. They were always a good inspiration on what could be done, and even if the model isn't exactly what you wanted, it was always a functioning prototype to test with.
Since last year, multicolour printers have gained popularity. They automatically change between 2 different colours, but to make sure nothing of the old colour is left in the system, every time they change it they print out a few grams of waste product.
It's a waste indeed if you look at the "poop bucket" of anyone who uses these types of printers. Idc if it's only the "technically recycleable PLA" they use, I don't like it. And now I have to manually filter out those models, and they can fill an entire page depending on what's the new trend right now.
On the flip side, I'm hopeful that the large scale waste people have will finally drive more local filament recycling services.
That is truly a shame and a waste.
There are options available in the slicer to wipe the byproduct into the infill of the models, that way you end up not wasting any of the material