Differences

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--- plasticrecycling [2022-05-31 23:33] – MirZa
+++ plasticrecycling [2022-05-31 23:49] – MirZa
@@ Line 2: / Line 2: @@
 The lab has a system for shredding and recycling 3D printing filaments. We're currently set up to process PLA and PETG.
+Warning: the product was made by Italians, the documentation/menu options are not always complete or in proper English. Some of the firmware code is also in Italian.
 ===== Sorting & Storage =====
@@ Line 8: / Line 10: @@
   * The optimal object for shredding is something with an uneven shape in all three dimensions and <40% infill. The further you get from that, the harder it will be to process.
-  * **Don't put any item that's too big for the shredder (about 10x10x15cm) in the recycling box.** If you can cut it down to that size, do it. If not, it needs to go in the rubbish.
+  * Cut up bigger stuff so it fits into the recycling box (10x10x15cm), otherwise throw it away.
-  * Anything that can be described as a "sheet" or "panel" - ie, big in two dimensions and small in the third - may be difficult to shred because the shredder teeth will struggle to grab it.
+  * A good tip for anything that is big and flat that the shredder teeth will struggle to grab is to lean the shredder about 30 degrees to the right so they slide into the teeth better
-  * Don't try to recycle anything flexible, like unprocessed filament or a failed first layer that came off the printer as a flimsy plastic sheet.
+  * <del> Don't try to recycle anything flexible, like unprocessed filament or a failed first layer that came off the printer as a flimsy plastic sheet. </del> Works fine
 If you want to recycle something but the box is full, either do some shredding or toss it in the bin - don't overwhelm the lab with unprocessed recycling.
+When you are shedding a new material, vacuum out the blades, hopper and collection drawer the materials don't mix.
 ===== Shredding =====
-The shredder is pretty simple to operate. Make sure it's plugged in and the drawer that holds the shredded bits is empty (don't worry about the tiny bits clinging staticly to the inner surface). Load a few objects into the hopper at the top, close the lid, flip the switch by the power cable, and press the button on the top.
+The shredder is pretty simple to operate. Make sure it's plugged in and the drawer that holds the shredded bits is empty (don't worry about the tiny bits clinging statically to the inner surface ((Todo: buy an alpha ray source to dissipate static charge)) ). Load a few objects into the hopper at the top, close the lid, flip the switch by the power cable, and press the button on the top.
-You should hear the motor struggling occasionally and running more slowly or backwards to clear jams. If you hear the steady sound of a motor unbothered by anything difficult in its path, stuff is probably jammed against the sides of the hopper and not actually reaching the shredder teeth. Press the button to turn the shredder off (DO NOT rely on the safety switch under the lid!!) and re-seat a few things.
+You should hear the motor struggling occasionally and running backwards to clear jams. If you hear the steady sound of a motor unbothered by anything difficult in its path, stuff is probably not actually reaching the shredder teeth. Press the button to turn the shredder off (DON'T rely on the safety switch under the lid, it's software controlled) and re-seat a few things.
-Remove the drawer from the bottom of the shredder and empty it into the appropriately labelled "shredded" bin.
+Empty the drawer from the bottom of the shredder into the bin labelled "shredded". There is an oval sieve I printed to filter out the bigger bits and feed them back into the shredder. Smaller pellets are easier to extrude. You can run them through the shredder 2-3 times to make it easier later.
 You can fill the hopper and leave it running, it will automatically turn off after a while of it detecting there is nothing to shred.
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 | HDPE | 200 | _ | 9 | 0.6 | no | |
 | HIPS | 200 | _ | 9 | 0.7 | no | |
-| PP   | _ | _ | _ |  _  | _ | |
+| PP   | _ | _ | _ | _ | _ | |
-| PET from bottles | up to 270 | _ | _ | _ | [[https://www.youtube.com/watch?v=HBCOyyY73e0]] |
+| PET from bottles | up to 270 | _ | _ | _ | _ |[[https://www.youtube.com/watch?v=HBCOyyY73e0]] |
 Add raw pellets 40-60% by weight. 100% recycled is also possible, but worse quality, not yet tested in the lab.