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--- public:spot_-_3d_printing:filament_recycling [2025-09-05 11:53] – Sebastien Martinerie
+++ public:spot_-_3d_printing:filament_recycling [2025-09-05 14:36] (current) – Sebastien Martinerie
@@ Line 21: / Line 21: @@
 This process is as follows:
+{{:public:spot_-_3d_printing:cycle_recyclage.png?nolink|}}
+**Results**
+  * Sorting and cleaning the waste are critical steps in order to reduce the difficulties and number of deffects at the end.
+  * Extruding a new filament from waste is particularly difficult, especially with PETG. The process is very sensitive.
+  * At the end, we are able to extrude good filament made 100% of waste (without adding virgin material) and with no loss of material properties!
+  * Because of all these factors, our spools still present some deffects (diameter change, presence of foreign objects) that can clog the 3D printers' nozzles.
+  * Now we are working on quality control: detection and correction of the deffect.
+The project is still in progress but hopefully we will be able to let students try our in-house filament before the end of 2025.
+**How you can contribute**
+  * As a SPOT user, you already contribute by giving us some raw material. But PLEASE, throw your plastic parts carefully! **PURE PET-G ONLY!! NO GLUE; NO SCREWS, NO INSERTS!!**
+  * As a Master student, you can contribute by doing a semester project with us! Ask the coach for available projects.
+  * You can also join the [[https://www.epfl.ch/schools/sv/fr/science-de-la-vie/a-propos/bureau-de-durabilite/plast-it-back-2/|Plast it back]] group of students who is focusing on plastic recycling.