Stop Buying Filament, Use This 6x CHEAPER Alternative instead

My Pellet Extruder will be available on July 28th at 12:00 AM Eastern Time. More info can be found on my website: ➡ greenboy3d.de/

we should skip the PLA production step and just chemically produce PLA at the tip of the nozzle from Lactic acid and a catalyst 😂

I have access to literal tons of both engineering and commodity resins for free that's thrown away from my workplace. I think you 100% need to pick a nozzle that's optimal for pellet extrusion more so than maintaining broad compatibility.

Idea: try adding some new pellets to your shredded waste, somewhere between 10-40% of new pellets. This is normally done in recycling as it increases quality of the end product by a lot. And 90% of recycled material will still safe a lot of waste

I love your attitude of just getting things done rather than getting stuck in making the prints perfectly clean 😃

My 2 cents on your question about "standard nozzles": not critical, especially if they are suboptimal for this extrusion technique. Most important is a pellet extruder with optimal heating & retraction results. So if that means a different nozzle type, so be it. Fantastic work by the way ! 👍 Been saving a ton of PLA parts in the hope of recycling them into new prints. But nothing out there seems affordable in terms of time , money or reliability. Most require recycling into filament first, which feels like a dead end for consumers: too many issues, too time consuming, somewhat expensive. Your approach that just requires careful grinding seems the most promising to me so far. And seems good enough for my prototyping workflow for functional parts: many iterations, no need for perfect surface quality. Thanks for your 2 years of effort on this front !

Put me down as "don't care" about nozzle compatibility. Nozzles are cheap, they last a long time, and if a special extruder needs a special nozzle, I can understand that. As long as I can GET them, or I can modify standard ones to work. Are you thinking of tapering the inner profile? What would make a standard work better on a pellet extruder?

this makes utter sense when recycling, you reduce one step and won't reheat the plastic again saving it from losing it physical properties

Honestly the majority of new printers have proprietary nozzles, so if an optimal nozzle can be close in price, i dont see it being an issue. Really interested in this for an option for my sunlu s8 with a bigger nozzle to print my failed prontd

Cool to see progress on this! Reg.nozzle: why not just make custom nozzles that use m6 threads? You maintain compatibility, and you can also get the characteristics you want

This channel ought to have 500k+ subscribers. Good job at pawing the way for pallet extrusion on consumer grade printers.

Supporting standard nozzles will bring more people in, so in the short term that's probably the better plan, but the next step will be to develop custom nozzles and setups that work better.

For recycling it's typically done by mixing the old plastic into a new batch. You could try how well the system works at different ratios of old and new. Ideally ofc you would want to shred it to similar granule size, but the hopper and screw system should be able to handle varying sizes. Would like to see some tests on this. Recycling old plastic inhouse can be a huge saving overall. For the nozzle question, I think you should aim to have optimal nozzle for the printing and not be chained by universality. If the system becomes widely used then it becomes the new standard :)

Great work on this! Look forward to supporting you in the future. Survey done, I hope you got many responses with valuable information. Keep up the awesome work you are doing!

Oh man - Subscribed! Great content! Look forward to see what else you work on, and following along your progress! Really would like to experience your setup! Heading down similar journey. Thanks for being down similar paths, the world needs it!

Love your work keep doing a good job improving our 3D printing community I plan on using this design on a personal project in the future.

The retraction explanation makes perfect sense when you consider that reversing the conveyer screw in a pellet extruder is functionally doing the same thing as a "retract" move on a filament extruder; namely, they both are reducing the pressure inside the melt chamber. Which is the real goal of a "retract" move anyways.

This is absolutely amazing! I can't wait to hear more about this and eventually try it.

this should be watched by all big 3d companies. Whoever makes this reliable and with quality will win everything.

I used to work at Tektronix, and there was a shade of color the used a lot on plastic molded parts that we called "Tek blue". I learned one day that they made this by mixing medium blue, white, and black RIT fabric dye (the dry powdered version) to get this color. Of course, those were injection molded parts, so I don't know how that would work here.