When using the 3D printer, material is left over, e.g. from support structures, bed adhesion or from failed prints. What to do with those?
Especially in shared spaces, like a FabLab or Makerspace, the amount of leftover material sums up quickly.
Most importantly, the material should be collected unmixed.
There are companies that recycling the leftover materials into new filament (e.g. https://recyclingfabrik.com/).
However, there are also ways to recycle the materials at home in to new filament. This is a rather complex and expensive process though. In the video above you can see the different steps.
A local school in Flensburg is recycling the PLA leftovers from biat and FabLab IDEENREICH. Former biat students have worked on the machines that they needed.
📚 You can find a little article about the project here