Saw this on CL and thought it would be a good source for making ABS filament. I’m not sure if anyone here does that but if so…
I was going to query for information on how it could be done, but then realized that a quick search would be more efficient. Here are a couple of the links that interested me, in case anybody else was wondering.
The more highfalutin folks make filament out of Lego bricks. 
(seriously, though, that would have to be one of the LEAST economical sources for ABS)
Not if you watch for the garage sale with the 8 year old kid whose parents have stepped on those DAMNED BRICKS FOR LAST TIME!! last night…
Mitch @themitch22 can fill us in, but didn’t we build a machine for recycling ABS?
I thought @themitch22 was building a Filastruder at some point.
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Yes we have a filastruder, I haven’t had time to fix it and build the spool winder. You still have to grind the ABS down to 2-3mm pellet chunks to fit in the extruder and the ABS has to be clean and dry. Also we have 10lbs of virgin pellets to mix with the recycled stuff. I can’t guarantee filament consistency and that’s part of calibration.
Anyway I need to motivate myself to fix the filastruder to get it working. Yes I want to do a workshop on plastic recycling but it’s hard to do with our scale.
Extruder? You might say this machine 3D prints filament…
Technically. We can effectively make our own ABS filament for our printers but they have to be the right diameter, shape, and contaminate-free
If the filament isn’t pure, will it harm the printers or just give a bad print?
it will clog a nozzle, and usually when you are 80% finished with a print
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From old TVs? That’s great! I would love to have a look at this.