Stop Buying Filament, Use This 6x CHEAPER Alternative instead

Рет қаралды 97,707

Күн бұрын

Pellet 3D Printing offers much more than people can currently imagine, this video will give you a better understanding of the "why".
MY PELLET EXTRUDER SURVEY: ➡️ greenboy3d.de/
Join the Greenboy3D Discord Community HERE ➨ / discord
You can additionally support my project on Patreon / greenboy3d
00:00 Intro
00:52 Differences Pellet and Filament 3D Printing
01:58 Can it Retract?
03:41 Max Flow Rate?
05:02 Max Speed?
06:34 Recycling failed 3D Prints
09:11 Custom Coloring

Пікірлер: 568

@greenboy3d Ай бұрын

Contribute to the Development by answering MY PELLET EXTRUDER SURVEY: ➡ greenboy3d.de/

@madison66 Ай бұрын

Hi My idea for coloring is using different color inkjet bottles they feeding directly from side your extruder simply using stepper motor pumps. So you can run the color(s) slow or higher speed, or in a mix of different colors into the extruder.

@greenboy3d Ай бұрын

@madison66 hmm🤔

@BurkeDEV Ай бұрын

@@madison66 a similar thought occured to me also. Realistically, for any innovative 3d printing system to try and take on the giants like prusa, creality, or bambu labs, then it needs to have an answer to multi material or multi colour systems with a user experience at least half way as refined. Automated side feeding of colourant into the feeder could be part of that.

@muatok9904 Ай бұрын

@@madison66 theoretically you would only need red blue yellow black and white to make any color combination you could use two or more print heads to achieve full color 3d prints

@madison66 Ай бұрын

@@muatok9904 same way like an inkjet printer does, so there's no need of rocket sience

@Embassy_of_Jupiter Ай бұрын

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

@wilsistermans1118 Ай бұрын

Lactic acid does not exist in a pure form. It will always forms chains (polymerisation). You could make a kind of PLA from cornstarch, water, vinegar and glycerol. But... It is very hard do that in a controlled way which is needed for printing. The PLA also has a bad quality, because the chains are very short.

@edeniaAJ Ай бұрын

@@wilsistermans1118Water, starch, and glycerin does *not* produce PLA. Instead, when you partiality hydrolyse starch it breaks amylopectin into amylose and dextrin. I've made multiple videos on my channel about Thermoplastic starch. Really interesting material, but completely different from PLA

@greenboy3d Ай бұрын

😅

@enochbooher6509 Ай бұрын

Pure pla is kinda mid for 3d printing so you’d also need to produce the other plastics that go into it

@bliantfive Ай бұрын

Why stop there? Why not genetically modify the corn used to produce pla to grow warhammer minis?

@SNESChalmers147 Ай бұрын

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.

@andrikurniawan531 Ай бұрын

What place u work for?

@sirrodneyffing1 Ай бұрын

Absolutely. This gives so many benefits overall, a small compromise is no problem.

@greenboy3d Ай бұрын

Thank you for your feedback🙂 What would you like to see next?

@psxtuneservice Ай бұрын

1kg PETG cost here 6-9 usd per kg. That is so cheap, if it would be free, I would not print more. In the company we also put hugh amounts of PA6 and POM in the junk

@BingusBongusMan Ай бұрын

Special nozzle all the way. If a standard platform for pellet extruders eventually comes out as a result too, it just means this will have set the ground for that standard! If there is demand, standardization will come, and people will prefer the performance gain and the eventual affordability.

@Kurckie Ай бұрын

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

@greenboy3d Ай бұрын

And I love you comment ❤ What would you like to see next?

@Kurckie Ай бұрын

@@greenboy3d I'm quite interested in more details on shredding the plastic to make it workable, or is it really as simple as just throwing parts in a kitchen blender and sifting the result? I would also like to know more about your 2-year journey (what major hurdles did you encounter and how did you tackle them) to get at this point, and on how to get my hands on the result to be able to play with it.

@ulfpointner8141 Ай бұрын

@@Kurckie maybe another extruder just a little bit bigger where you can throw in bigger junks and then making consistent pellets not just dust...

@HolahkuTaigiTWFormosanDiplomat 19 күн бұрын

0.0.o

@Ducttape_Power Ай бұрын

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

@greenboy3d Ай бұрын

Thank you for your interesting input 🙂 What would you like to see next?

@p3chv0gel22 Ай бұрын

I mean, 100% recycled material or 90% recycled material should safe the same amount of waste, since you are propably using more waste than you produce (if over 90% of your prints are waste, you are propably doing Something wrong)

@raphofthehills4405 Ай бұрын

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 !

@wyzedfz1495 Ай бұрын

I agree on this. CNC Kitchen even tried to build a high flow nozzle out of a regular brass nozzle and a copper insert when HF nozzles were a novelty. So already manufactured nozzles can be adapted "quick and cheap" with a round copper insert by just press-fitting I guess, and new manufactured nozzles just with one hole less! I am sure that with the visibility you are earning through your videos, you can achieve something like that pretty easily. However, I would let the nozzle compatibility window open.

@cleanroomwizard2356 Ай бұрын

Agreed - for PLA the time and effort isn't worth it - aesthetic prints like cosplay items, busts, toys etc. wouldn't have the look or shape consistency needed, and the functional parts may not have the tolerances needed - it could be great for printing support or infill perhaps but then that introduces a whole other series of challenges in slicing or IDEX integration. I would recommend this extruder for printing thermoplastic elastomers that are too soft to turn into filament, or perhaps make printed parts from materials other than standard and widely available filaments.

@greenboy3d Ай бұрын

Thank you for your great input :)

@greenboy3d Ай бұрын

A question that can't get out of my mind is what people would do if they had a nozzle clog, which can happen on any 3D printer due to some particle blocking the nozzle hole. If the "special nozzle" is not easily available globally because only I am selling it, then this might be a problem. Any ideas?

@raphofthehills4405 Ай бұрын

@@greenboy3d depends on your goals, I guess. If it is to make money on nozzles then indeed it could become an impediment for buyers. If not, publishing the design specs will get a long way toward copycat nozzles appearing on aliexpress or ebay. With many biz models in between (partnering w 3D printing accessory distributors on each continent, selling through specialized online stores that have figured out worlwide buy & ship like CNC Kitchen's, etc). BUT the nozzle is only a tiny concerning piece in my opinion. How about other proprietary or uncommon parts of the extruder and providing spare parts for repair ? Like the extruder screw, or its housing ? Screw extruders do NOT have a great reputation on the hobby scene. So, as a buyer I'd be less worried about the nozzle (I'll likely find a way to unclog it) and more about whether I'd be able to get spare parts if anything breaks down ? Bambu Lab might be an example to ponder. The highly specialised parts in their printers initially turned many people off for fear of ending up with an expensive unrepairable dead paperweight. But their policy of selling most parts online at a reasonable price went a long way to assuage these fears. Maybe something can also be learned / copied from that ?

@BrightBlueJim Ай бұрын

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?

@idosu2835 Ай бұрын

I'd think something that's internally threaded to eliminate the extra unneeded melt area.

@greenboy3d Ай бұрын

@dominikl3406 Ай бұрын

@greenboy3d the idea to modify a stndard nozzle from @BrightBlueJim would be the easiest way in terms of accesability. Even when you break multiple ones during the process of modifying or if they clogged faster you can get a inexpensive replacement. The tapping tool could be a custom cadfile ready to cnc manufacture via different big manufactures, like JLC for example, same for special nozzles.

@idkwhatnonamemyself1951 Ай бұрын

⁠⁠@@greenboy3di mean if you’re the only one selling it it could be a problem, but if you can solve the distrubution option it wouldnt be an issue imo. You could look into if modifying a nozzle thats readily avaliable is an option because then people could just get that nozzle and modify it themselves if buying one from you isnt an option.

@ronaldhiser860 Ай бұрын

@@greenboy3d I work in blow molding. We use stainless steel screens and place them after the extrusion screw. This catches contaminants and solves your clog. Your only option after that is solvents when removing your nozzle.

@LuckyX0182 Ай бұрын

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

@greenboy3d Ай бұрын

What would you like to see next? :)

@satibel Ай бұрын

From tests I've seen reheating doesn't really reduce properties by a significant amount, the main issue with recycling is contaminants.

@ERIK-457 6 күн бұрын

@@satibel I think so is for metals and well, many other materials that melt at high temperatures, so i suppose it should be a similar story with plastic since it's so similar to those just in a much weaker and lighter (and cheaper) form

@satibel 5 күн бұрын

@@ERIK-457 yeah for metals the main issue is that most of them are alloys and you can't precisely control the quantity of each metal, so you have higher variance on properties with recycled metal compared to metal that is made from known sources.

@MikeKasprzak Ай бұрын

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.

@greenboy3d Ай бұрын

Thank you for your great input 🙂 What would you like to see next?

@MattJonesYT Ай бұрын

It's better to have something that works. If it doesn't work it doesn't matter if it uses a standard nozzle.

@TurboSunShine Ай бұрын

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

@greenboy3d Ай бұрын

@ZURAD Ай бұрын

@@greenboy3d Make many or get a manufacturing partner. If you want this to catch on it needs to be accessible.

@TurboSunShine Ай бұрын

@greenboy3d well, it's not like you can buy normal nozzles at the local super market either, i think as long as you maintain compatibility with standard nozzles, it should not be an issue, otherwise you can sell them in packs of 10, that gives people alot of time to order a new set when they need it. I suspect that the custom nozzle is going to be all about having as little fillament volume as possible to avoid oozing, right? In that case, it might be even easier to clear the nozzle, and it would make it even more a non issue :)

@GonnerMeLeggies Ай бұрын

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

@greenboy3d Ай бұрын

@Eduard_Kolesnikov Ай бұрын

@@greenboy3d Good point indeed. Humans on all the sides of the planet. may be you go as some success company do - make a cheap option and a pricy one. So you will also not let your interest go away for some ideas.

@talbech Ай бұрын

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

@greenboy3d Ай бұрын

Thank you for your kind words ❤ What would you like to see next?

@AngieRigby Ай бұрын

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!

@JRT3D Ай бұрын

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!

@REDWOLF_RC_ARMORY Ай бұрын

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.

@greenboy3d Ай бұрын

Thank you for your warming words ❤ What would you like to see next?

@thebiglj Ай бұрын

I support anything that makes 3d printing cheaper, simpler, faster, and more efficient. Keep up great work, and I will do my best to consistently support you.

@greenboy3d Ай бұрын

Thank you ❤

@sebombastic Ай бұрын

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

@oneandy2 22 күн бұрын

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.

@RealSnail3D Ай бұрын

Great job on this video! From the production to the information. Fantastic.

@greenboy3d Ай бұрын

Thank you for your warming words ❤ What would you like to see next?

@dalemac89 Ай бұрын

Thank you for answering my question in your previous video about retraction!

@greenboy3d Ай бұрын

no problem :)

@maggieMakesMechs Ай бұрын

Always excited when these videos drop. When are you releasing your design?

@ristopaasivirta9770 Ай бұрын

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 :)

@greenboy3d Ай бұрын

very interesting input 🙂 Thank you

@BrightBlueJim Ай бұрын

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.

@greenboy3d Ай бұрын

Thank you for your very interesting input 🙂 What would you like to see next?

@agnicholson Ай бұрын

This is super cool work you are doing! Consider me thoroughly impressed and in awe of your abilities! I love 3D printing and the amount of innovation and absolutely genius levels of ingenuity I've seen at so many levels within this community! Being able to purchase an AFFORDABLE pellet extruder that can be put onto many other brands of printers would be invaluable as a 3D printing oriented business owner. I'd especially love to see this become standard on some other printers like Prusa or Bambu, though I'd settle for a reliable conversion kit and I'd buy like 5x of them. Haha! Keep up the great work! I'll be keeping a close eye on this project for sure!

@BurkeDEV Ай бұрын

Amazing work! This is true innovation! I'm so excited for the future of this system!

@greenboy3d Ай бұрын

Thank you for your warming words ❤ What would you like to see next?

@BurkeDEV Ай бұрын

@@greenboy3d Perhaps a road map of your goals with this project and technology? Love to see the progress, but I also want to know your vision

@sierraecho884 Ай бұрын

Besides printing metals this is by far the best development in the 3D printing space since years. Kudos to you, keep up the good work.

@IPrint3dMinis Ай бұрын

Neat video, I love the amount of work folks put into FDM printers just to get a new way to print or not waste materials. I am not sure I would go through the trouble of doing all this, just to save a few bucks in materials, but I feel the pain of wasted materials as well. Resin printers create so much waste with support materials only being used and tossed. I love that you took and Ender 3V2 and did this, those things are like Honda Civics, cheap and easy to mod.

@evilpunk4767 Ай бұрын

Your explique so well ! I would love to try this pellet extruder !

@alext3767 4 күн бұрын

Hey, this is great! I was looking for a convenient pellet extruder. I currently recycle old plastic and create my own filament, but that is much more work than directly printing the shredded material.

@travisnguyen6053 Ай бұрын

This is good please keep working on this 2 year project

@greenboy3d Ай бұрын

I will :) What would you like to see next?

@ImageSC Ай бұрын

For the nozzle, maybe go with a CHT nozzle, since it has three channels in which the molten plastic flows through, meaning it might have more consistency in the heating and flow. As for the small discrepencies in the melting process, maybe add some small notches on the side of the extrusion screw so that any trapped air could be potentially allowed to bubble out or maybe as a way to control a bit of pressure. As for dying your batch, could try going with alcohol dyes and do it in the same format of mixing it in an enclosed jar/container.

@greenboy3d Ай бұрын

Thank you for your very interesting input 🙂 What would you like to see next?

@tomwagemans1872 Ай бұрын

Nice project. Subcribed!

@greenboy3d Ай бұрын

Thank you for your kind words ❤ What would you like to see next?

@habag1112 Ай бұрын

In this case, in terms of speed, I think a bed-slinger might actually perform better than a CoreXY. On a CoreXY the heavy toolhead would affect the resonances of both axis, which would limit accelerations. On a bed-slinger the heavy Y axis performs worse than the X, bottlenecking the X axis speeds. But in your case, both axis are heavy, so they don't limit each other, and because they're separate, it's probably going to be easier to deal with their respective resonances. But that's just my theory.

@greenboy3d Ай бұрын

True :) By the way, what would you like to see next?

@MrKennykyle1 Ай бұрын

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

@artevious Ай бұрын

Love this project and can’t wait I have an old Ender i could dedicate for this awesome project! I think having a quick swap that can change to other machines.

@greenboy3d Ай бұрын

Thank you for your kind words ❤ What would you like to see next?

@ameliabuns4058 Ай бұрын

I honestly think I could live with the reduced print speed if it prints consistently or great. but even right now it could be used in a tool changer? I also have an idea: i'm developing a pressure sensor for hotends that can optimize the flow and calibrate on the go based on hotend pressure, you could use one and then do a closed loop servo style hotend!

@greenboy3d Ай бұрын

Can you write me an email regarding your presure sensor please to kristian@greenboy3d.com :) I am interessted and also willing to pay for it

@ameliabuns4058 Ай бұрын

@@greenboy3d Sure!

@jasonjiang2013 Ай бұрын

Well done! A good enough print as shown in the video is insane. The possibility for community collection and reusing plastic is through the roof. There are a lot of nonprofits in Buffalo NY, that currently have 3d printers that would be interested in this project. Filament is the biggest cost right now which blocks us from legitimate local manufacturing. Since the injection molded parts are cheaper than just the filament, its hard for 3d printing to make sense This project could bring us closer to - buy nothing world I think a lot of 3d printing print farms are looking closely at this too! Could make their prices much more competitive and possible to break into more product categories, including more simple shapes.

@Krautech Ай бұрын

Honestly, if the nozzle is open source, it wont matter if you make it specific or universal, people can come out with their own to help improve etc. This is an awesome project and you're doing the community AND the environment a huge favor. Keep up the good work 👍💪

@iam-music Ай бұрын

Vielen Dank and greetz from Sydney. This is really important. I prototype...a LOT and Im over throwing out the, by now, 100s of kilos just to test and trial. "Good Enough" would be asbolutely fine until I have a release candidate of the design. GREAT WORK!

@habag1112 Ай бұрын

I calculated 112g/h = 38.3 mm^3/s, am I correct? Calculations below: Assuming PLA density is 1.24g/cm^3: 112g * 1.24 = 138cm^3/h 138 / 60 = 2.3cm^3/min 2.3 / 60 = 0.0383cm^3/s = 38.3mm^3/s flow It would be cool to see you perform the orcaslicer max flowrate test on different nozzle sizes. It makes it easier to see the actual limits of flowrate.

@cleanroomwizard2356 Ай бұрын

A bit of an overestimate on flow rate unfortunately - if the PLA is more than a gram per cm^3 then 112 g should represent less than 112 cm^3. I think the calculation should be as follows: 112 g/1.24 g/cm^3 = 90.3 cm^3 90.3 / 60 = 1.50 cm^3/min 1.5 / 60 = 0.025 cm^3/s = 25 mm^3/s Still better than many standard nozzles, but not matching top of the line high flow. I think beyond this, the cooling rates will be a bigger limits but with klipper input shaping the weight of the extruder may be much less of an issue than with previous firmware. Still a very impressive project in general!

@greenboy3d Ай бұрын

I'll look into the "orcaslicer max flowrate test", might test it this way next time. Thank you for your very interesting input 🙂 What would you like to see next?

@miniblocs80 Ай бұрын

Great video!

@AndrewAHayes Ай бұрын

I once read an article about an Indian university student who couldn't afford a 3D printer and so he designed and built his own, the only things he bought were the arduino chip to build his control board and the steppers, he was also having trouble affording filament and so he also designed and built a pellet extruder as he could get the pellets for pennies. I have a few old bedslingers that I would love to convert into pellet printers!

@gernhartreinholzen3992 12 күн бұрын

I’m all for recycling and reducing waste, also I like saving money, so I love it! Most prints just don't need good quality. Stuff like hooks, holders, storage containers and so on work just the same even with a +-1mm tolerance, so the reduced surface finish is no problem.

@VinceEdwards-vy6dl Ай бұрын

I would agree with most others that a more efficient nozzle would be preferred over a standard one.

@greenboy3d Ай бұрын

A question that can't get out of my mind is what people would if they had a nozzle clog, which can happen on any 3D printer due to some particle blocking the nozzle hole. If the "special nozzle" is not easily available globally because only I am selling, then this might be a problem. Any ideas?

@_Not_Retarded Ай бұрын

Nozzle clog can be solved by buying another one. Profit. Sell a 3D design of the nozzle for a substantial amount, or just publish it for free for the street cred

@ricardohnn 28 күн бұрын

I agree with him... It's a great idea to try to recycle the filaments residue, even if the prints doesn't get perfect

@LhunVideo Ай бұрын

This is really interesting. I wonder if you could make some GCODE that would use your pellet extruder to make spools too with a small addon. Seems like it would be a pretty handy thing to have around in general. Your screw style pellet extruder might actually be ideal for people's DIY filament recyclers, turning older printer parts into filament recyclers is of interest to a lot of people.

@jacobrollins37 Ай бұрын

I really like what you are trying to do. Even if the up front cost is most likely going to be more, the saving on the filament is huge. Making custom colors is interesting too. Are you using regular spray paint?

@greenboy3d Ай бұрын

Yes, regular acrylic based spray paint. But like I mention there are multiple ways and spray paint types... By the way, what would you like to see next?

@MrBaskins2010 Ай бұрын

method 4 was genius. this project is fire, not something i would ever have use for but so incredible

@gaveintothedarkness Ай бұрын

Great video! really hope this gets adopted in a larger scale than tinkerers.

@greenboy3d Ай бұрын

Thank you for your kind words ❤ What would you like to see next?

@platin2148 Ай бұрын

Question where do you get your pellets from i did see this stuff is more in the Tons to buy which is a bit too much. Other thing how much colors can one do and what fading does it have?

@TS_Mind_Swept Ай бұрын

I definitely would like to see this take off; even if I didn't use it so much, I can definitely see a place for it

@ogretheberserker2618 7 күн бұрын

I love what you got here. The problem is layer lines. I would like to see this mod on something really good with that. If it's your system then open-source it to see how you can compress it. Current superchargers come to mind with compression.

@yaliofek4384 Ай бұрын

this is amazing!

@tomsalzl6593 Ай бұрын

SAW VIDEO 1 AND NOW THIS!! Thank You! Can a pressure lift switch be added between the nozzle head assembly and the actual carrier mount guide rail? maybe this would be fore a different design. say 0.6 nozzle layer eight travel is 1.2. the stepper feed goes till the head is lifted ill the trigger head lift switch is tripped or lifted to that height, then the travel steppers are engaged to conduct gcode shape. maybe be do a reverse stepper feed code for retraction. Head should relax and lift switch switch off for next travel movement and no feed. Maybe CNC kitchen or Dr. Dflow. Dflow did a very large scale pellet printer. maybe this helps on the stringing retraction issue. micro optical type switch or nano like adjustable switch control to adjust layer height and retraction.. just ideas...

@greenboy3d Ай бұрын

Thank you for your very interesting input 🙂 What would you like to see next?

@MCChubbyUnicorn Ай бұрын

This is an awesome idea. It would be really nice to be able to actually make our own spools from pellets. Im sure you've already posted a video on why you didn't do that here.

@greenboy3d Ай бұрын

I can try that out, should I? :D

@ziggystardog 12 күн бұрын

I recently got a Magneto X printer, and your work seems tailored to using it as a test bed, since the linear motor can move some serious mass quickly.

@UntangleWORKS Ай бұрын

I had no idea this was I thing just a before seeing this. but very cool and promising project for sure. and yeah like others I would drop the standard nozzle if this means a better end product then that should be worth it for sure. and it's understandable that this will have his own set of pro and cons, just like a bowden vs direct drive and bed slingers and cor x y does. so that it's not going to break any speed records that is fine. it might get better over time also the project matures but it for sure got some good unique points. being material price and the custom coloring options are nice as well. I do wonder about the paint smell? when it heated up? or does it not seem to add extra fumes?

@ERIK-457 6 күн бұрын

I dont like too much all the "green" theme, but i like the idea of self-sufficiency, i might use recycled plastic for low quality prototypes and only use top quality expensive filament for things that i want to be more permanent and of higher quality, i am a fanatic of quality by the way

@CatGus Ай бұрын

great work friend really a great showcase of a a full stack of skills product design and manufacturing, marketing, and communication. God Speed

@darktrojan00 Ай бұрын

I wonder if it would be possible to do some injection molding with this setup?

@vindicted84 Ай бұрын

Let me ask a question can you just make standard filament roll with the pellets? If its available we can bypass many problems and use it with any machine without modifying the machine

@hellothere6627 Ай бұрын

I love the project and progress, I have two main questions. Does the extruder work well with flexibles? Why not buy a filament extruder and the cheap pellets and produce your own filament to use in standard printers? How much is the difference in cost between this nozzle and a good filament extruder?

@JWarren-iu4qe 20 күн бұрын

Yes I am highly interested Also, what about variable temp to accommodate different materials such as wax for lost wax method casting?

@ozzytheartist4780 Ай бұрын

Would melting spray painted pellets in your extruder not eventually gum up your extruder?

@herbertattema9890 14 күн бұрын

How well does it work with the cht nozzle. That would probably help with the oozing because of the extra resistance

@mohe81 Ай бұрын

This is exactly what I need. I have been saving all my PLA trash from supports, failed prints etc, since I started 3d printing, waiting for this product.

@greenboy3d Ай бұрын

Working on it :)

@Jetwow135 Ай бұрын

Where do you get the pellets from

@Eduard_Kolesnikov Ай бұрын

pellet extruder is number one priority, but its great that you thinking of an options

@jdandcoke Ай бұрын

Where are you buying the pellets from

@m14srv Ай бұрын

Can you mount the extruder motor on the frame and use a "flexible" linkage. Think flexible drill extender

@drolax Ай бұрын

Amazing! Now i w̶a̶n̶t̶ need to build this.

@stevenfaber3896 Ай бұрын

I would worry about off-gassing for using the various shake methods while the pellets are in the extruder. I thinnk a greater focus on post-painting and recycling already mostly off-gassed materials makes more sense.

@TechBuild Ай бұрын

I have collected around 8-9 kg of PLA waste in the course of 14 months and building an extruder to use them to print functional parts will be a much better use for them instead of giving them for recycling. I am very excited for the design files to come out and know where I can source the screw from so that I can recycle my waste into useful parts!

@greenboy3d Ай бұрын

Thank you for your warming words ❤ What would you like to see next?

@My1xT 8 күн бұрын

when you made that hook I immediately recognized it being the cnc kitchen one lol

@greenboy3d 8 күн бұрын

Maybe I should sent it to him for testing

@Atlessa Ай бұрын

So I just ordered my first printer (Creality Ender 3. I know, far from the best, but it fits in my budget) so of course I'm looking for videos on how to make the most of it, and this came up in recommended. Now while I find the premise intriguing, I seriously have to wonder where the heck I can actually get pellets for those prices, because no matter where I look (Amazon, Aliexpress, Wish) pellets and filament cost ABOUT the same per kg...

@Bluecommando10 9 күн бұрын

Make an adapter for your propriety "nozzle" that has multiple SKUs for every nozzle thread type. Boom done. Really cool idea man.

@Curtis_Brusque 6 сағат бұрын

How do you handle switching colors or materials?

@damonvanopdorp2905 Ай бұрын

Could we put a narrow "shim" into a standard nozzle? I'm thinking about a copper tube that reduces the internal diameter of the nozzle bore.

@greenboy3d Ай бұрын

Thank you for your very interesting input 🙂 What would you like to see next?

@nlingrel Ай бұрын

Have you tried running SLS powder through your extruder? There may be a use case for recycling waste powder.

@FPSG Ай бұрын

Nice. For recycled plastic the bulk density will be different. Building a small pelletizer extruder would be more consistent. I worked as a tool maker in an extrusion plant for 10 years. There are ways to make it more consistent but the complexity goes up.

@greenboy3d Ай бұрын

Thank you for your very interesting input 🙂 What would you like to see next?

@ChrisHarmon1 Ай бұрын

I see deals on bulk PLA for $8 a roll shipped. Long as you dry every roll, most stuff today doesn't clog or tangle like the cheap stuff back in 2014 when I started.

@edeniaAJ Ай бұрын

This is, frankly, truly awesome stuff. When I get the time, I definitely want to investigate this pellet extruder further. Do you intend to release the source material, etc? That would be really awesome, if I could make one myself eventually and try it out!

@greenboy3d Ай бұрын

The 3D Printed parts will be for free, but the other ones need to be purchased :) What would you like to see next?

@edeniaAJ Ай бұрын

@@greenboy3d hmm. Since it's already a pellet extruder, couldn't you design a custom extra wide nozzle for direct injection molding? Say you 3d print a prototype of something, but then you want to produce it in bulk, so you acquire a mold (you can actually resin print them), swap the nozzle, and then begin injecting. I just thought about it, since it already extrudes pellets it could be used for both printing and IM, all in the package of one device. You don't even need a plunger, just have the screw set to high speed? :) Additionally, I'd like to see some experiments with some more exotic materials (PC, Polyamides, etc,). Have you ever thought about buying some graphene powder and making some master batch pellets with something like polystyrene, and then combining that with the bulk material? I think you'd be surprised at the strength of graphene infused parts.

@Villecubing Ай бұрын

You can you make it work with normal nozzles and start making a custom nozzle after the release of the extruder

@greenboy3d Ай бұрын

Thank you for your very interesting input 🙂 What would you like to see next?

@Chris-oj7ro Ай бұрын

Nozzle compatibility across filament printers makes sense, but it does not have to be that way for a pellet extruder. It makes more sense for the pellet extruder that uses a different extrusion method to have a different nozzle. Then from there, hopefully all future pellet extruders would have the same nozzle compatibility. Maybe if you just keep the same threading, it can be up to the user to decide if they want to use an easily available filament nozzle, or a pellet nozzle.

@greenboy3d Ай бұрын

You've got a point here :) Any wishes for the next video?

@snowe.. Ай бұрын

You’re designing an entirely new hotend. A custom nozzle is not going to be the deciding factor in whether people choose your design or not.

@Mich665 Ай бұрын

most of the quality issues i see are common issues i see with my ender3 v2, looks mostly like you need to clean and fix your z-screw wobble. Even my upgraded board on my printer has given access to input shaping and pressure advance both of which very well may help a ton with quality. I wouldn't say quality isn't something that couldn't be achieved with the pellet extruder just may take some time to calibrate for. That being said, I also understand its not your focus right now, your working on developing it. as well as if a modified tip is going to make it work significantly better i would say go for it, but if the gain is negligible I would aim to keep standard, with plans for a possible upgrade?

@amm0j00.o7 23 күн бұрын

Try a little brass funnel that will fit inside the nozzle. Or match up.

@greenboy3d 23 күн бұрын

Good idea :)

@peterboy209 Ай бұрын

I think this is the way to go especially for large printvolume printers since the printmechanism is bulkier and the material is way cheaper. Mach weiter so, 👍

@greenboy3d Ай бұрын

Danke :) Was würdest du gerne als nächstes sehen?

@tistick Ай бұрын

Some of the problems you're running into are also issues in small extruders. I.e. if the extruder screw is running at 60 rpm, expect an uneven "squirt" of resin every 1 second out the end of the nozzle/die.This is why metering pumps are often used at the end of an extruder (to tightly monitor flow). The 3d filament printer brilliantly solves this issue inexpensively by using filament. The filament feeding system is acting as the gear pump. Another issue will be safety. If you build up pressure behind molten plastic that has frozen off at the nozzle, watch out. Randcastle has made a great miniature extruder for decades to learn some of the inherent issues.

@greenboy3d Ай бұрын

Thank you for your interesting input :) What would you like to see next?

@ottonguyen Ай бұрын

Great KZfaq video, I definitely could use a pellet extruded in my life for recycling prints. Also, how much will the upfront costs of building this extruder be? I’m just curious if the money I would spend on this would offset the cost of filament and recycling prints in the long run.

@ottonguyen Ай бұрын

One more thing- I think the thing to blame for your suboptimal print quality might be due to the gantry/printer itself. I saw a lot of z banding that may be a flaw of the Ender V2, not the pellet extruder.

@mhdm Ай бұрын

I think significantly better print quality is more important than full nozzle compatibility. However it would be great if you could maintain some level of compatibility, for example by keeping the M6 thread. Then the pellet extruder would work best with the custom nozzles but still function ok-ish with a common nozzle. Some compatibility would prevent complete downtime and allow the early adopters more ways to experiment - an easy one would be shortening common nozzles as from what you're saying a stubbier nozzle is closer to ideal.

@KoreyMacGill Ай бұрын

Makes me want to build an extruder. Then just buy pellets and colors. Would be awesome

@greenboy3d Ай бұрын

What would you like to see next?

@conorstewart2214 Ай бұрын

I think a possibly better option is to look at making filament yourself. If you can make filament then you can use any off the shelf printers or parts. Splitting it into separate steps is likely better. That also removes the print quality concern. Another option may be to put the pellet extruder on top of the printer and have it create filament that goes straight into a Bowden tube down to the hot end, although this would likely not be as good as making the filament separately.

@Macaroni_King Ай бұрын

Perhaps counterintuitive but would it not make sense to try to move away from 3D printing certain components altogether like the storage bin and just make it out of dense construction paper if it's far enough out of the way of heat for even better cost margins and infinitely easier to modify for any size/shape constraints than reprinting from scratch? Very exciting idea all around even so for a project.

@supercurioTube Ай бұрын

I just filled the form 😌 In short, for me it would be all about reducing waste from prototype prints: I would shred them and re-use the plastic. Most of the time, quality doesn't matter that much when prototyping iterations especially if you add some more tolerances if needed.

@greenboy3d Ай бұрын

Thank you for your input 🙂 What would you like to see next?

@supercurioTube Ай бұрын

@@greenboy3d I'd like to see how the shredding process could be optimized, maybe with finer particles, filters and multiple iterations to reduce variance in extrusion. I'm guessing that pellets are a convenient form factor but not made with tight tolerances. And maybe it's possible to increase the print quality by shredding everything, including pellets themselves into finer particles with tighter tolerances.

@treasend4126 27 күн бұрын

paint is flammable isn't? is it safe to heat it?

@LaunchpadMacQuack Ай бұрын

What is the actual maximum flow rate? Imo a flowrate >100mm^3/s is an appropriate goal and it will be very interesting for large formate prints where cost savings will be very significant and hav the potential of less drooping than comparable filament hotends/extruders.

@FernandoNSalgado 7 күн бұрын

You won me at the 8:41 . Now I want a 3d printer just to be a brat.

@greenboy3d 5 күн бұрын

😀

@MrZacktheJack 9 күн бұрын

You should check out the quantum delta 3d printer by Kilian Gosewisch, instead of moving the printhead it moves the entire bed on all axis and the extruder stays stationary, that way you can eliminate the size and weight constraints of your extruder.

@jov7733 Ай бұрын

Did we ever figure out what exactly is the mechanism behind the inconsistent extrusion? Some industrial pellet printers use a 3 zone extruder screw, they claim this improves surface quality. Also, just curious, is the screw edge sharp? And what happens to surface finish if you increase or decrease motor current?