Turning 3D Print Waste into New Filament!
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- Опубліковано 15 тра 2024
- I tried to make new filament from the multi-color purging poop of my Bambu Lab printers, and it wasn't straightforward. Let's find out more!
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Chapters:
00:00 Introduction
00:47 Sponsor
01:44 3D Printing Waste
03:23 Shredding the Poop
04:34 Extrusion Batch 1
07:19 Filament Pelletizer
08:39 Extrusion Batch 2
10:41 Recycling Alternatives
#3Dprinting #Recycling
DISCLAIMER: Part of this video was sponsored by VoxelPLA.
FTC Disclaimer: A percentage of sales is made through Affiliate links - Наука та технологія
Want to get your 3D prints to the next level? Check out our Heat Set Inserts and Tools at cnckitchen.store (Free shipping worldwide starting at €100).QUESTION What are you doing with your 3D pointing waste?
*QUESTION* What are you doing with your 3D printing waste?
As of right now I'm saving all waste, sorted by color (and type, of course), in the original filament boxes, and I'm planning to store them all until I find a viable way to send them for recycling.
I'm sorting all my waste by polymer and color and manufacturer. Turns out the bags spools come in make for pretty convenient 3D printing waste bags!
They're starting to take up quite a lot of volume in my workspace though, I'm looking for a cheap (~
Can we shred the poops right after they are coming out of the nozzle initially? Whole process down the line would be way less involved
And the poop piles would take up way less space
additionally, since we know what color transition is performed every time we could add a simple sorting solution. In case of A1 mini, in theory, it could be as simple as 2mm difference on X axis allowing the poops to fall in their respective container
It will be interesting to run a heat deflection and material elongation tests on those compared to original material, as it was heated twice it's possible it is degraded significantly
We recycle PLA into filament in our facility in Buffalo,ny. If you’re ever in the area, we can show you how it’s done at a big scale. You’ve got all the parts of the process figured out! Moisture is a huge part of it
It‘s time that Bambu or some other company is getting an affordable filament extrude / recycling station on the market asap! Maybe not for the biggest/thickest parts but at least for the poop!
Can just grind them down smaller?
yeah let people pay just because a company uses an idiotic wasteful system
3D printing waste is tiny compared to the rest of the plastic waste you make in everyday life
I thought about the same thing. I have always wondered if it was possible to recycle all the filament waste.
Maybe CNC Kitchen can make a filament recycler. However, at the current rate, I'm pretty sure Bambulabs will probably be the first to make a mass-market filament recycler.
If I remember correctly, you can have, at most, 30% of old plastic in a recycled part for it to have appropriate behaviour.
Haha I knew there had to be a reason for collecting so many poops! That filament dimensional accuracy is so hard to nail, but you're getting closer and closer! Really encouraging, considering there are zero methods of recycling print waste currently (at least none here in Aus)...
No, we in aus have DC engineering 3D printing for pla and terracycle for abs recycling
i feel like if he put some virgin material in it may have been more consistent
australia or austria?
@@chromyl_chloride No kangaroos in Austria
@@chromyl_chloride note: Aus means australia, Aut means Austria :)
I don't own a 3D printer but the fact that you are trying to recycle and use as much of the filament as possible is great.
Helpful tip, put the magnet in a small bag before dropping it in. It makes cleaning it of debris much easier-- just invert the bag.
Good point.
i've always wanted to have a 3d printer but despised so much the idea of generating so much plastic residue, i'm glad to see some 3d print youtuber taking the interest on reducing such harmful waste.
Thats my biggest hang up too. I am glad my local filament supplier makes their own PLA and takes back scraps for recycling.
@@instanoodles wow that's so nice of them.
Please don't get a printer. The community doesn't need more cry babies.
Given you've got the tools to do so, I'd love to see what re-melting it over and over again does to the mechanical properties of the filament. Does the layer strength drop? Perhaps the filament becomes more prone to shattering. I think it'd be a cool thing to test!
I should do: "how often can you recycle PLA?"
@@CNCKitchenyes!
I once went to an industrial 3D print conference, and there someone from ESA explained that they have a 3D printer on the ISS and that they recycle their printed parts. And the mechanical properties actually get better! But it was with PEEK 🙂
@@CNCKitchenyes please ❤
@@CNCKitchen or "how many times can you recycle PLA?", but yes, it'd be really interesting! :)
Lowering your purge volumes in Bambu studio also helps. If your willing to spend some time to figure out how much of a purge length you actually need. In my experience I found that for many solid colors, halfling the extrusion distance worked well. But in some situations I went and further refined this getting down to 1/8th of the original purge distances. It does also allow you to set purge volume based on the filament colors involved in the change. So say a very dark like black to a transparent might require a greater purge than to another solid color. I generally don't use a purge block either.
This has worked very well for me. Just need to watch out for highly contrasting colors but around 15-25% default purge volumes has greatly decreased waste.
How do you get rid of the purge block though. In Bambi studio.
@@EndlessGames13 Disable the purge tower under other settings
The question of recycling the 3D-printing waste was actually the major one to keep me from considering 3D-printing as an acceptable hobby. I'm pleasantly surprised that people are working around this issue - and are finding numerous of creative ways of using the waste, moreover recycling it back to the cable. Keep up great work!
Well PLA is biodegradable, wouldn't stop me from buying it but I don't have much money
@@hypercoder-gaming ah yeah, that's a good point :D
Thanks Stefan. I have boxes of failed prints sorted by colour and filament type and live in hope that one day it can be recycled. I've been sorting my failed prints this way from day one. So it is good to see progress here.
Always love these recycling videos, can't wait for this to be realistic for everyone with a more accessible version
Yeah it really annoys me that he won't make a video about recycling at a hobbyist cost level
Edit, it looks like he's going to make a video for one that's now cost friendly
A big problem for making this scale is being able to seperate plastics from eachother. If you're a filament recycler taking in plastic from different sources, you cant really trust that those people are giving you clean, properly sorted filament. A technology for sorting, splitting, or not caring about mixed polymers is an important step
I think another issue is likely that say ABS is not ABS is not ABS. That is I figure that one cannot just pitch their Polymaker into the same bin as their Atomic or Inland or Fusion Filaments.
They do sort plastics at recycling plants. Different plastics either have different densities that can be sorted, or absorb different wavelengths of light
Moisture was one of my first concerns. Glad you caught it! Definitely a ton of work and energy used to make this recycled filament, but still a really cool idea and result.
I do appreciate this line of thinking! I hope to see a stronger recycling market. No reason to allow any plastic waste.
The one suggestion is to do the drying procedure after the poop has been pelletized. Since pellets are smaller, the PLA will have a greater surface area to allow water to escape.
The Filament Extruder has two air cooling fans (4:48), with one sucking in warmer air from the extruder itself. Wonder if utilizing a copper spiral coil with cold water flowing, and the hot filament passed down the centre of the spiral, air from fans would be much cooler, greatly shortening the elastic portion of filament between the extruder and the rollers, which should tighten tolerance on the filament diameter. Another option would be to pump a small stream liquid nitrogen into the area. liquid nitrogen would quickly turn into a cold gas.
recycled material like this would be perfect for a lot of what I do, most of my prints are functional things so I really dont care what color they are or even if they are perfect so long as they are dimensionally accurate enough to do what I need.
I'd buy recycled material if it was cheaper, instead it's more expensive than just buying fresh filament.
I use Recycling Fabriks recycled filaments A LOT and I truly love this filament. I've had zero problems so far and its great to know that this is 100% recycled filament.
Thanks for sharing!
yeah...but the thing is what do you do with your waste ??
@@themountain59 easy, recycling fabrik provides shipping labels for free to their customers. They'll then use my waste to produce new filaments
They cost too much, at those prices I buy the originals
@@MauryXman Just had a look at Recycling Fabriks prices. Bundles for 18€/kg, 2.5kg spools for 18.80€/kg and the normal 1kg spools for 20€ is not cheap but still quite reasonable in my opinion. Definitely something I will consider buying in the future.
Part of the filament recycling process should include a hollow sink that matches the _intended_ diametre which it is pulled through and as blobs are encountered with a sensor before it, vary the speed of the outfeed to ensure the finished product is more consistent.
This can be achieved with using metal tubes encasing an induction heating coil, then controlling the temperature of that coil. Once heated and pulled through, a fan and perforated / slotted metal outfeed tube immediately cools down the plastic to lock the diametre in, and it should be a better result once spooled.
More videos of this kind are appreciated! We really need a home solution for filament waste! Also, please discuss material degradation and the limited number of times filament can be recycled!
It would be interesting to see how combining old plastic bottles into the mix affects recycling of PET filament and how reliable the filament thickness is as a result.
its always amazing to see that you cover so many aspects of 3d printing.
I’d really like to see strength tests on the cons batch. If the coupons have roughly the same strength, I wouldn’t mind printing functional parts with it at all. Fascia and more decorative prints, I’d stick with the virgin material, but structural bits not seen by the end user, or parts I just make for the shop, I’d love a recycle option.
I think I totally would buy recycled materials, especially if the colors were funky af. I think it's very cool to have weird colored prints, I can always paint them if I need them to be a different color!
Unfortunately, where I live, there aren't a lot of people doing 3D prints, let alone recycling! So I just have to wait for 3D printing to catch up I guess.
I am collecting my 3D printing trash until I have enough to be economical to buy a recycler. Recycler are also, slowly getting cheaper, so the two should cross eventually in value.
I half expected that you'd have to mix virgin material into the recycled material, just so that it flows better in the machine. You might be able to get a really good consistent diameter pelletizing and then mixing with some virgin material, so that the mechanical properties aren't too degraded.
There are a good number of extra precautionary steps to make this process even cleaner, and having the extrusion tool that measures diameter variance is perfect for finding correlating factors. Wearing gloves to prevent sweat and oils from contaminating the pellets would help, having a dedicated space for holding and handling all of the plastics to consolidate vapor for easy filtration would help, and just knowing that tackling the moisture issue is enough to provide a workable PLA filament from scraps is so encouraging. I'd love to see more experimentation, especially with materials like carbon fiber and graphene
Well done dude, I did a master project regarding exactly that in 2015, but you have gotten a much better quality filament than I did back in the day.
This is such a cool effort! Thank you for documenting your recycling process, it was such a labour of love!
I've been printing with PLA for 4 years now and I've been separating scrap by color and storing it in totes. I'm still hoping someone in my area will be able to recycle the stuff back into usable filament one day but meanwhile the scrap pile grows larger! The good news is that as time goes on and my skills improve and printer quality is steadily improving I don't produce as much scrap as I once did. I like your ideas of extruding twice and extracting moisture; good points!
There was the Filastruder here in the US that looked similar to the ARTME, but they've been out of stock for a while, and I was planning on building my own extruder. I use a lot pf plastic and print a lotta big stuff, so being able to make and recycle my own plastic I think will help me cut down the cost of the hobby. Thanks for doing this series covering all your trials with extrusion!
This stuff is so important for the 3D printing community. Thanks for sharing your successes and failures on this.
You're very welcome
great vid, Stefan. thank you.
seeing how much value you give us throughout your many experiments, have you ever wondered how you'd go about drying filament in the microwave or is it a flat out bad idea?
im literally trying different things to try and recycle/reuse/repurpuse waste extruded filament, and this shows up! Thank you for this video!
I feel like easy, affordable & effective at-home recycling solutions are on their way soon!
What an amazing and interesting video, this not only is very inspiring to see that it is possible and is quite informative on the process of recycling, but is also amazing to see that companies are willing to put in the work to recycle filament on a national scale. Hopefully other industries can learn from this.
that's amazing, i mean for test prints or for small one this type of recycling filament is one if not the best option.
I don't print massively often, but right from the very first test print I ever did, every bit of waste plastic has been kept in a lidded tub, waiting for the day that recycling it could become viable at home.
It looks like we're still not quite there yet with the machines needed to get something that won't keep causing jams, but we're slowly coming closer to a workable process.
I definitely like the idea of the "pelletiser" - a similar mechanism with a robust design could make a very fine addition towards the production of reused filament in a small workshop.
I think the filament pullet mechanism might need to have rollers that also act somewhat as a mould that squashed the filament into the correct (or at least more consistent) size, cool it down immediately past there, pass that through the diameter sensor with another pair of rollers, and then spool it.
Great video as always
I have bought recycle filament from Prusa and PM filament, with no issues.
Thanks for sharing your experiences with all of us 🙂
wait is poop the actual term? I'm three days into this hobby and already decided that that is what I'm calling it but good to see the feeling is common
Yes Poop(TM) is registered by Bambulab. Other brands have to find something else in the future. Maybe like PooPoo or Pupu,, doody-doo something like that. :D
I love the new music after the intro. It feels more modern and fresh.
We already divide our waste up into different plastics, and keep it in large ziploc bags with dessicant for eventual recycling. A fun idea I had was that I started to separately collect all the fails/supports/bed adhesion scrap from my various silk PLA prints to reuse in other ways. I'm experimenting with making decorative items and costume jewelry parts (like spangles or faux feather/enamel inlay bits) out of the waste. Also I'm lucky to live near a filament recycling company, in St Louis, so when we have enough, recycling will be relatively painless.
This is a fantastic video ! Its a no brainer to reuse your failed prints. Indeed its a technically challenging process, but you have made a great start !
"Der Weg ist das Ziel" - nice Video. Love the journey!
Amazing! Before this video I was just throwing my failed prints away, but now I am going to save them for something else! Thanks 😍😁
Well done!
We need more affordable solutions for this. Recycling and reuse is becoming more and more important as more users get into 3D printing!
True, and if you look at the viewing numbers on all the videos Stephan made on this topic you could assume there is a fairly large market to cover... just saying :-)
I have an artme 3d MK1 filament extruder and it works really well , i also used the filament on my bambu p1s and the prints were awesome !
Many times in industry they mix shredded material with original material granules. It does help even out differences in material properties and it also helps with flow in hopper.
You should try a mix of 75% regrind and 25% virgin to start, if the flow still is not what you’d like, bump up the virgin a little.
Also, another way of catching any stray metal shreds is to place a magnet on the outside of the feed hopper, near the mouth so the metal is captured before heating.
This plastic can also be sorted before being ground, if you want to keep a uniform color in your media.
Thanks, that was very interesting. I collect my printwaste from beginning on, I sort it in black, white and mixed, based on my consumption. Now I wait that some friend comes to the idea to recycle it.
I don't usually paint my prints so I do like having the different colours myself (or just print in a neutral grey). But if the end goal for someone is to paint their models then I can definitely see a recycled filament being a popular choice.
I’ve saved all my failed prints/supports/brims etc. I first run them through a wood chipper then through a P5 shredder to make the pieces smaller. Then the plan is to run them though an extruder (should arrive in the next week 🤞). I don’t care what the colour is since I’ll use all the recycled filament for prototyping.
I´m also looking forward to get one of the Artme 3D Filament extruders after I finally finish building my Shredder. Gonna be an interresting Video!
Recycling filament gets even more interesting for other materials like petg or abs as those are not bio based materials but rather oil based, so the environmental aspect is greater there. Pla is after all starch based and can be composted in a suitable composter (not that thing in your garden).
As someone who is about to add 3D prints to my small business, this info is extremely helpful! You have probably saved me literal days of hassle and headache trying to find a way to be economic about printer waste! Thank you so much! 👍
Edit: What I meant to say was that because of your work I now realize it's far more economical for a small print business like myself to send my printer waste to someone else to make into filament, rather than struggling to try to do it myself.
You wanted to say that he proved recycling to be nonsense.
@@juliusvalentinas
No. He proved recycling to be Work, to be a large task that I severely underestimated.
Recycling is very worthwhile, I'm just not equipped to recycle my own print waste. This video helped me understand that fact before I would have wasted many days and several dollars attempting such a task.
Now I intend to send any future print waste off to be recycled by more qualified hands.
Nice idea!
When you collect the poops you know which color is is (mainly) if no better solution you could monitor the motion of the filament rolls. Why don’t you sort the poops while printing? That would give you the possibility to control the resulting color better. Instead of brown you could get red, green, blue, grey or similar results.
I think Bambu should look more into ways to reduce filament waste, as well as the time taken to swap colors. While people seem to like the AMS, perhaps it is reliable, it's also one of the slowest and most wasteful ways to change colors. In the meantime, Prusa is working on a new MMU system that will hopefully be more reliable than the MMU2, as well as having a tool changer system on the XL.
Very interesting. Here's a small idea from me. Per layer, at the end, on the inside, for infill, THIS is where that last "waste" stuff should be used. But this clearly demands the slicer to be very smart and planned in regard towards this as a method. To be clear, past the start and the end OR thin sections, the infill will often take up a lot of space inside. I'd deem that a safe area to swap filament on the inside so the print can just continue. If one could code this in with some thickness parameters for when it should shred off a blob OR dispose the transition into the infill structure? Sure this would make the waste decrease significantly right? 🤔
I would be the guy keeping all my similar color in different bags for recycling- so cool! you could even do a color changing filament if you load bits of different colors one after the other
Excellent video, Stefan; I'm really looking forward to the Artme build!
Thanks, I'm excited, too!
Really looking forward to your thoughts on that other filament system. The market needs an affordable way to recycle prints at home.
after seeing your video i collected bigger failed prints and started collecting all prints from then. as soon as possible i will send my waste to recycling fabrik. they are realtively near me (Niedersachsen) and i will buy rPLA now, when my existing pla is gone. thanks mate. i avoided 3d printing for years because of the waste, but now i can print with a clean conscience. thanks!
I hate waiting for a month to get my new Prusa printers to America. I guess i'll find out about filament pooping someday... i'm going to make my own shredder and extruder because you inspired me! 😊
*new cnc kitchen video*
SPRINGS TO THE COMPUTER
I really want a filament extruder so bad, i want to experiment with crazy filament! but it's so expensive...
that artme video is so exciting!
I suggest installing a second extruder and printing internal perimeters and filling with recycled plastic. This can be done with a large nozzle to avoid clogging.
Isnt a lot of the clogging already happening before melt in the heatbreak/extruder/bowden tube? A larger nozzle alone wont help, not sure if there are hotends and extruders with explicitly larger tolerances on filament.
These videos are so important to bring to attention that this is indeed possible! In my country, we don't have any company that recycles 3D printing scraps sadly... But it could actually be doable, if the company got some grant or funding, which they often do, especially if it's related to environmental concerns, to get some good professional equipment
All these proyects are amazing to me. Great video
I've been saving my scrap since I first started printing, hoping I would be able to recycle it myself. I only use PLA and seperate the light colors from the dark. I use lots of pastel colors and hope to make a guitar body mold that I can fill with shreds, heat up and press together. But there aren't a lot of options for compact at home shredders.
11:42 Nice; I guess it's a good thing I've been separating my different color 3D print waste into separate bags, looks like I'll have a place to send it now
I have a "Box of shame" with all failed prints, I might start sending my scrap to Recycling Fabrik, thank you for that tipp!
Come on Bambulabs !!!!!
Hop on the recycling bandwagon.....Make it affordable and I'll be 1st in line to make that purchase
Would love to see this DIY filament recycle process perfected. I've been storing a bunch of failed prints and printer poops over the past couple of years because it seems like we're on the verge of a breakthrough.
Thanks so much for sharing this! My very comment on Twitter where you showed this mask was " I want to see the poop". Thanks a ton!
I have bought Overture's Eco Black before.
Its partially made from leftover material.
It seemed to work as well as the normal stuff.
Really great video! I think it's great to recycle..rather than doing the more common thing of chucking them out and having them end up in a landfill!
This is so cool. I wish I just had a DIY home system to do this. I hate throwing failed prints away.
The printed Majora's Mask looks awesome. It's crazy how far 3D printing has come
To get a perfect dimension filament, I would suggest forcing it through a set of rolling dies that set its diameter to exactly what you're after. Set up a set of rubber wheels in a push-pull config, and force it through a circular rolling die.
Great video... Its nice that someone actually shows how difficult it actually is to recylce stuff and more importantly that it is possible... All i wonder is if you had added some virgin material to it would it be easier requiring less steps...(an idea for a video i guess)
i think communal maker spaces need to become more widespread. this kind of thing only makes sense for industrial users or as a part of a communal project.
That would be so great to have one in every city!
Thank you for adding subtitles :D.
You are getting me excited. Looking forward to the arame-3d review. As an education professional of younger children I would love to have an accessible and practical working machine to shred and produce filament out of PLA waste or PET bottles.
Recycle! Reuse!! Repurpose!!! 👏👏👏
Loved this ❤❤❤
This is the video I needed. THANKS !
I am wondering, what is the impact on material properties after recycling. Layer adhesion, strength, melting temperature...
Great video! I wish the recycling were easier.
Jealous of all your equipment :D I just finished a year of cnc schooling and i miss having access to the workshop i hope i can get together my own litte mini machines at home someday :D I like this channel alot :D
Great video! I have three bins with failed prints/supports (ASA, ABS, PETG) waiting me to try and tackle the recycling issue 😂
Thank you this video is very helpful. I just got a 3D printer myself
The waste and added time is part of the reason why even though i have a x1c with AMS, i just don't really do multicolour anymore unless it's required. the idea of it is great but in practice it's just a pain. Looking for an idex or multi-tool machine for the next upgrade, whenever that comes up.
I wanted to start a small recycling process for Switzerland as sending our failed prints to Germany was way to expensive. Unfortunately 3DEVO refuses to sell me a machine. So I would be happy to know more about other options which aren’t company grade material.
Massive effort, but good result. Well done!
Great video! I don't want to do multi-material printing mostly because of all the garbage produced.
I hope in the future that this will be more affordable/accessible.
Closed loop supply chain wow it’s so efficient!
Great video! ❤
I saved all my 3D print waste, because I hope to recycle it one day. The ARTME 3D extruder is on my wish list, so I’m looking forward to your video bot that.
The most funny thing is, that with you first two batches which had major diameter differences you printed an owl.
I‘m not sure if this was planned sarcasm or just a lucky accident but its funny as hell 😂
Totally respect the process.
Some other people I know that recycle their own filament use a Blendtec blender to grind the filament into tiny pieces after drying the filament scraps and p00p. They say that blender turns the filament into tiny particles that melt easily. The blenders use to be famous for the videos where the blend iPhones, whole frozen fish, garden tools, gold balls, etc... so I don't doubt their power to grind filament.
Really hope that resin printing can get some sort of recycling system going on!
That green is actually quite pretty!
Wonder if pulling the filament through stages of Bowden tubes might help in ensuring a uniform diameter when they're being cooled.
I got tired of stuff getting stuck in my short tube, so I simply drilled it out after it hardened a bit from a bit of use... The nozzle itself has a 4mm intake, it is the teflon tube that gets the blockages unless it is something stuck in the nozzle tip.
Hi there! I just discovered your channel. Nice videos, they are very informative and insightful. Vielen dank!
You’re welcome!
we have been working for several years in our lab with fully recycled filament. So the fact that it was possible has been known for a long time. It's also a lot easier if you get thousands and thousands of dollars worth of equipment for free
Nice project. Wouldn’t be surprised if in a few years diy recycled filament becomes easier in a similar way printers themself have evolved to be more user friendly.
On a side note I’ve been having great success recycling plastic drinks bottles into PET1 filament using a mk6 recreator by JRT3D. We don’t have any bottle deposit scheme here in the UK so not loosing money on the bottles. The resulting PET1 filament seems to be more heat resistant than ABS/ASA
I was thinking of using my old coffee grinder from the Breville Oracle (not the simple blade type, this has turbine style teeth). I have a spare which is technically not good enough for coffee grinding but may work for shredding plastic to very fine granules.
you could use a poop color sorter on the output with some coding, it would be closer to it's original colour than poop
9:20 if you're going to put desiccant in a vaccum, I would suggest creating a false floor with the desiccant underneath so the evaporation falls to the floor and when opening the lid, the re-condensation then absorbs into the desiccant with the plastic above since vapor in a vacuum I would think would drop to the floor bed