PET bottle to 3D printing filament - A complete solution from Tylman Design
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- เผยแพร่เมื่อ 8 พ.ค. 2024
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There are more and more recycling options available for DIYers to use with 3D printing. In this video, I test a range of products from Tylman Design. They include the PETmachine (PET strip to PET filament) and PETwelder + Mr Winder (filament joining and winding). Although a certain investment is needed to get going, these products and the process itself can be very effective.
Both kits were provided free of charge by Tylman Design for the purposes of me making this video. All opinions expressed are my own. teachingtechyt.github.io/revi...
0:00 Introduction
Recycling playlist: • Recycling
CNC Kitchen video: • PET Bottle Recycling: ...
0:59 Tylman Design
Website: tylmandesign.com/
Etsy store: www.etsy.com/shop/TylmanDesign
2:08 Building the PETmachine kit
5:45 The pultrusion process
6:20 Preparing bottles
7:30 Cutting PET strips
8:54 Using the PETmachine to pultrude filament
10:20 Printing PET filament
11:45 Building the PETwelder and Mr Winder
13:03 Joining PET
14:02 Joining PLA
14:29 Further printing
15:07 Is it worth it?
17:06 Conclusion
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I was just researching recycling bottles for printing the other day. This is a wonderful concept.
I use a Schrader valve in a bottle cap, lightly pressurize the bottle, then put the Schrader valve in a drill, turning it slowly while heating with the heat gun. Makes for a consistent smoothing without risking shrinkage of the PET.
I do this as well.
Я вообще не нагреваю бутылку перед разрезанием. Это лишнее. Подшипниковым бутылкорезом она режется без лишних действий.
Thank you so very much for bringing this PET recycling process into 3D printable filament to public attention. I have been using rPET made in this way with the Recreator3D project developed by Joshua Taylor, as a teaching project with my students and, if tuned properly, it can be a source of material for inexpensive projects. The students bring a PET bottle to class and leave with a useful part, like for instance some simple lab material. This isn't meant to replace bulk recycling done by our municipality, but just as a way to raising awareness for the problem of disposable plastic and the usefulness of such materials.
This is an insanely cool setup... BUT... Good lord this is a LOT of work to get a little filament. I'm gonna have to be honest, I don't think this is for me... BUT, I might have to try PET filament with my shredder and extruder combo... if I ever finish it... and see if that's easier :) Thanks for another great video Michael!
PET recycling from bottles, by shredding and extruding, seems to be quite a challenge, particularly in terms of consistency of filament diameter. It takes a new shredding step in order to get pellets of about the same size, that can be fed into the extruder again. Good luck with your project! We are excited to learn about the next developments!
@@NunoLanca One could simplify the process by using a pulltrusion system with suboptimal quality and then shred those strands, but that's most of the way there to a good pulltrusion machine already, and may be a bit cyclically redundant.
Extruding PET at home will be challenging at best because of crystalization.
@@Anonymous-qx5uk Agreed, it starts at 236C already.
The PETAmentor is alot simpler
These look really good. Had they been around a year ago I may have actually invested in one but truth be told I had a very enjoyable time building my own. One of my goals was to spend as little as possible to get as close as possible to "free filament" and the only parts I actually purpose bought were the bearings for the cutter and the temperature control for the heater. Other than that everything was made from repurposed items. i used an old 12V cordless drill I was going to throw out, a converted ATX power supply, a PWM dimmer from an LED light and some smaller bearings I salvaged from an old RC truck I had saved parts from. All told I have $12 invested into it...but WAY more than that in time. It was a fun project. Designing something, breaking it, redesigning and figuring out what works and what doesn't. Now I have a really good working system (although it is pig ugly) and I can regularly get free bottles from the recycling at work. I also inflate the bottles and found that 20psi is perfect. I put the valve end in a cordless drill to turn it slowly while heating with a heat gun. This stretches the bottle slightly and helps really smooth them out which makes for much better filament.
I hope to get one of these soon. Thank you for showing it off.
Congrats on 500k subs!!! You deserve it!
When i see that you uploaded a new video, i insta watch it and like it. Love your work man!
wow the documentation is really very well done.
Indeed, I was quite impressed by that! And people complain that this project costs money!
Congrats on 500K subs!!
I'm glad solutions like this have been created by people, but I think it should be the drink bottle manufacturers who are required to take these bottles back and handle all the cleanup and recycling of them. I've drastically reduced my use of items that come in PET bottles simple because it's too much waste for my liking. If it were easier to get the labels off and make sure the bottles were cleaned I'd probably do this myself. But since I rarely have these bottles in my house I don't think I'd get much use out of the pulltrusion device. I may pick up the welder & winder though! I have a ton of ends of rolls that I really want to weld together.
Of course it'd be better if the manufacturer would have to deal with the bottles at the end of their live. But unfortunately no one ever bothered making that actually their responsibility. Only recently there's even been talks about starting that, so we're still at least 10 years off from that being the case.
Until then it's up to folks like Tylman to figure things out that can work as a "bandaid" for the time being. The filament welder being a great piece for this, as the short amounts of bottle filament so far were the biggest reason to not bother in the first place.
As for getting the labels off, IF the label is made from paper, all that's needed is to soak them in dish soap'ed water. After a couple hours the label literally falls off on it's own. And the non-paper labels, at least over here in Germany, are usually not completely glued but basically just "tacked" together and to the bottle at the seam. So there's only a little ripping needed and some wiping after with something that dissolves the glue. I tend to use lighter fuel.
If they're plastic though and thoroughly glued to the bottle, then yeah, that's basically a middle finger from the manufacturer for this case... But I can't say that those are common over here. At least not with soda bottles as far as I know.
In EU the problem of pet bottles has been resolved (almost). It's not even feasable to do this. Every bottle has an extra recycling tax embeded in it's price witch you receive back when you recycle it. And every large store is obligated to have a recycling machine. So almost all pet bottles get recycled in an industrial maner, wich is way more efficient than any diy solution
Even outside Europe this stuff makes no sense, considering expenses and time, let's be honest. It's not the tax which makes the difference
I live in Europe and my country has no PET return process or tax/incentive for recycling it. This rPET filament making process can, however, be used in small scale as means of raising public awareness for the problems of plastic disposal and the importance of recycling. I believe this project fulfills this objective and it's not meant for large scale.
EU guidelines require countries to make sure a percentage of PET is recycled, I think countries are free to choose how to do this.
Where I live it's through a deposit on the bottles.
In the EU, *some countries* have *started* programmes that could resolve the plastic issue. It's far from everywhere and all the way.
This isn’t really feasible in countries that don’t recycle PET either. The yield is very low and the effort is very high, it is in no way economical or even remotely practical unless you go through lots of bottles
What a cool setup. I like it
Really interesting indeed! Thanks, Michael! 😃
This could help a LOT even with the environment!
Anyway, stay safe there with your family! 🖖😊
Excellent video Michael. I will share on my Socials.
Interesting machines, I think the real winner here is actually that automatic filament splicer and winder. The splicer is just really useful to have for a printfarm or makerspace that uses a lot of the same filaments whether or not they have a recycling setup especially for the really expensive filament. To really tap that market, the splicer would need to be able to hit the much higher temperatures required to be able to melt the really expensive engineering filaments like PEEK or Ultem. If the current design for the splicer can't do that, maybe a specialized version could be made for that, probably using a fair bit of metal for the parts close to the heat and extra heat shielding and cooling capability.
I have made the Pulltruder from recreator 3d and a soon as I watched this video I ordered the joiner and MR Winder they are due to arrive later today. Cant wait to make it and start to join the hundreds of lengths of pet I have produced with the Pulltruder.
Great review. I like the sentiment and this seems really well made. Having just weighed the usable portion of a 2L bottle and running the numbers... to produce 1kg of filament, at best I'm looking at *around* 45 bottles, 90 hours of pultrusion, 4.5 kWh of electricity, £1.13 added to my electric bill. Considering the time and effort, I'll pay for the convenience of readymade rolls and just hope my local council aren't dumping my empty bottles in landfill.
And the sheer amount of manual prep work. I can't believe home brew machines are worth the bother, let alone actually buying one.
This did at least prompt me to research how good my province is at recycling bottles. Turns out, it's very good. But I agree, this is a hobbyist's toy (which is *fine* , I spend a lot of time and money on hobby projects that are little more than toys), not an economically practical solution.
THANK YOU
What an amazing product!!
You always say you don’t have patience…I call BS on that😂
I would have like to hear you talk about the distinctive advantages of PET.
The whole food safe factor is wild. I’m not saying a 3d print would be safe, with all of its nooks and cranny’s.
That’s not saying some kind of chemical smoothing wouldn’t be good.
🇦🇺🤜🏼🤛🏼😎🍀🍀🍀☮️
I have a lot of experience with PET filament. I've made my own machine and went through many iterations and improvements. I do not understand how the machine in the video can be sold for $200. It doesn't come assembled, and you can easily find designs for such machines online and in fact some that are much better. From the video isn't obvious, but I think that the guy is using a standard 3D printer nozzle that is drilled. This in my experience is a huge mistake. While making my machine, I saw somewhere a guy using a brass bolt. I tried it and results are much better because the constricted portion of the filament path can be longer (around 10mm) and thus allow the plastic to take the new shape better. My filament comes out completely circular, completely transparent and you can print without adjusting the flow and you wouldn't even notice a difference since the gap in the middle is so small because I feed the widest strip possible. Second huge mistake is the filament cutter, those are terrible! Get a bearing cutter, it is silent and cuts the plastic way more precisely without that much effort. For anyone interested, you can find much more information on this topic on Russian forums. Also the filament splicer I haven't checked but I am pretty sure it is a Russian design or heavily inspired by it.
Yes! Can you pint me in the direction of projects like yours?? Thanks!
Yes you are correct but there is even better solution than bolt, 1.7mm MIG copper nozzle. Easily available, very long melt zone. Also bearing cutter is much better than blade cutter.
IMO, the biggest value here would be filament welder. I made my own machine and had no problems printing, but welding and spooling has been an issue. You can easily weld the two filaments, but the weld is brittle and too stiff and it either jams (if you make it too thick) or breaks (if you try and make it thinner). Also, spooling tends to not work as the filament tends to spring back. But the actual pulltrusion is not hard and like you said there are cheaper and better solutions. Bearing cutter being superior in every way, for example.
@@MatheusFP104 check out petamentor. It's free and open source and cheap to make. I didn't make that one, but it seems solid. The guy also produces kits and even finished machines.
@@MatheusFP104 There's also PETALOT project, IMO even better.
Have you seen the Slunaz FF1R filament welder? It was available on Kickstarter and I was one of the backers. It’s totally automated and for doing PET, it’s perfect! It’s made my task of processing a lot of small bottles became SO much easier and the welds it makes are perfect and sized so that they slide thru the PTFE tube and extruder just like commercial filament.
Thank you for bringing Slunaz project to out attention.
PET can be recycled and re-used near infinitely, unlike different types of plastic. As a printing target, this makes it very attractive, in that it is easily recycled. But given this, a machine that extrudes from pellets or ground scrap is more desirable than extruding from a strip derived from a bottle -- it's arguably simpler, and ensures the material can be recycled more than once.
While pet can be recycled infinitely, this does not apply to DIY stuff.
It takes an industrial process to increase the melt viscosity, because with each heat cycle the material becomes less viscous (going from honey consistency to water)
I still love pet for 3d prints but we have to be realistic. Also creating good filament from pet pellets is ridiculously hard. I've printed more pet material through a pellet printer than I've exteuded good filament, and I've tried extruding the filament for years
@@BelviGER Thank you for the additional context. What are the requirements to maintain the melt viscosity of recycled PET?
This is a very interesting topic.
@SeanLumly high temperature(200-210c) no moisture, no oxygen via either vacuum, nitrogen, or mixture of both, and keep it like that for 10-20 hours
It's also an exothermic reaction
@@BelviGER This seems involved, but unless I'm missing something, perhaps not out of the range of the enthusiast with access to (or the ability to mill) a valved metal container capable of withstanding vacuum, and a desktop kiln. And presumably this would only need to be employed when viscosity becomes an issue.
I used PET for the past 1,5 years in various diy projects. It shows clear signs of degradation (brittleness and discoloration) after heating it a couple of times in normal atmosphere.
I don't buy many drink bottles, so the PET cutter doesn't interest me that much, but the Welder and Winder is something I could definitely use. Very elegant, and while probably not the cheapest option out there, definitely seems like the easiest.
Interesting devices, I'm glad to see recycling is moving along in the right direction. Oh, btw, what model of Vise Grip wire strippers are you using in this video, I need to get a pair and Vice Grip/Irwin is a good brand.
Nice video. Honestly I'm more interested in the welder-winder combination than trying to recycle the PET bottles directly - all of American Cascadia has curbside recycling for PET, and our programme is pretty good. (Which is not to say anything bad about the device, this looks really good particularly for the price they're offering, and well doen to them and good luck to those who want this approach, I applaud it.)
But that winder and joiner, on the other hand - I'm terrible at filament welding and that looks _tasty_.
I did this for my high school project.
though mine was completely done by me.
It's quite an ambitious project! Congratulations!
This was both awesome and overwhelming to watch 😅
Default flow rate is low because of the air bubble generated in the middle of the PET straw. I use CHT nozzle, which fills the void with its core increasing the flow rate up to 10-12 mm3/s.
I wish there was a filament machine that could do this in 2 stages where it goes from pulltrusion to normal extruded filament so it is a solid filament strand instead of a rolled one.
I have been printing with PET for the last 2 years and I don't see myself buying filament anymore. My tip for you is to easy the wining process. PET tends to unroll as soon as it is loose. Just tie it in a small roll and put in an oven at 80C for 15 minutes and let it cools slowly. It will relax and keep the rolled shape. If you don't have an oven you can use, just let it sit on the printer bed at 80C, covered with a cardboard box.
It's not for me, but this looks like a well-thought-out solution. I'd like to see that pullstrusion process doubled up, with one bottle being stripped clockwise and another anticlockwise.
At first I thought that it's a cool idea for having a "free" filament from recycled bottles.
Then it hit me. I'd have to make a $300 plus investment for the hardware first. The filament in my country costs $12-15. So it's ~25 kg of filament. I don't think I would use such amount in 10 years...
Interesting about the filament shape 5:45... You know, you test adding a core to the filament 🤔 like glass fibers, or graphene, or another plastic to change the behaviour of the end product... 🎉
When I can I think I'll get this setup. When I learned that the filament is hollow I got to thinking if it would be possible to fill it in with a thinner slice of bottle. Particularly of a different color. I've seen some beautiful blue ones at the grocery. A clear sleeve over a translucent core would be rather interesting. I'm also wondering if it would be possible to make a custom hotend/nozzle to make my own bi/tri-color petgs because there doesn't seem to be a good selection like there is of pla. Taking bought spools and running them through this setup to get a new spool is what I'm getting at.
LOVE the Chopped shirt! Was the 180% flow for the smaller filament a guess? And did you find a solution for if you ended up with filament that is too big? I am struggling with consistency and finding a solution that will work with a larger tolerance than the +/- .02 that you get with store bought filaments.
This one isn't for me, but I'm glad that he made it.
Are you going to do a review of the Carvera Air?
I'm quite interested since I missed the early bird original Carvera and it turns out the released one _was_ actually more expensive, so I have a bit of fomo now with the little brother which is even more affordable.
I'd love to see your maker perspective especially to balance out between the first timer "Wow! thats amazing I can do it at home!" and the actual machine shop worker "That doesnt chuck 3 tons of steel per week, so useless".
FWIW this time I made sure to get one of the super early birds 😁
Recently there were some Shorts featuring a printer add-on that sits before the extruder and directly converts PET strips into filament as the printer needs it, but last I checked the uploader has refused to elaborate beyond the visual demonstration.
Sadly (in context of this video, or happily if you're an environmentalist) the chain for recycling PET bottles here has been working fine for over 30 years, for every bottle you buy you pay a small collateral (around €0.25 each) that you get back when you return it empty, it works quite well and they recently also introduced it for smaller (0.5L) bottles and aluminium cans, so it's way more cost-effective to just return the bottles and use the money to buy a roll of filament as well of the more energy efficient use of doing recycling in large scale.
But for countries without such a system and that still have tons of plastic bottles everywhere this seems like a great idea to start re-using this waste instead of just dumping it on a landfill or into the sea.
I'd gladly jump on this if Finland hadn't already solved the recycling issue lol. You pay extra in the form of a deposit for every plastic, glass and metal bottle/can that is returnable. You can return them to nearly any convenience store and get your money back. The amount of money is significant enough that making filament out of them would be somewhat financially detrimental. There is also no enviromental incentive for me personally to recycle the material, since my country already has a great infrastructure in place to do so.
About one and a half year ago, I've got my first 3D printer - Anet A8! (Seriously. It was a first place prize on RoboFinist 2022). I had A LOT of problems with this printer, and recently it stoped heating. Seems like either extruder MOSFET burned, or the ATMega got partially damaged. People say, that the only way to fix it, is to get a new motherboard, but I think, it's time for a new printer. Kinda want to try making a filament exturder out of my AnetA8
Probably still need a new board for it but I'd recommend something quick and cheap like the SKR mini E3 or even a second hand OEM Ender 3 board. An MKS Tinybee board could work too but people have had mixed results with that board. It doesn't even need to have the latest firmware either. A 3D printer can be repurposed as a pulstruder as long as it can run an extruder motor. From there, just attach that motor to a pulstruder instead and feed it gcode to just "extrude" filament. A rather boring job for something that still thinks it's a 3D printer lol
@@lajoyalobos2009 I wonder, if I can repurpose heated bed channel for it. Still feels kinda dangerous
I have remixed Joshua Taylor Recreator 3D into a Anet A8 version. You can find it in Printables. Feel free to check it out.
16:00 POLAND MENTIONED RAAAAHHHHHH
My feeling is that the prices of the equipment are fair for what they do, given that they'll be small-scale manufacturing for the kits. However, I seriously doubt there's any real economic value in the process.
Ignoring the cost of the labour involved in using this (which, if I'm being honest, is almost certainly a deal-breaker in and of itself) and in building this (which I'm willing to do because the building part would be fairly fun, I think), there's still the really long time needed to recoup costs. Getting the full combo will cost me 476$ CAD, shipped. I can buy PETG locally for around 22$ CAD. So I'd need to generate over 21.5 kg of PET before I broke even. But the math isn't done yet.
The internet tells me that a 2L pop bottle is around 40 to 50g of plastic, as of 2009. (It may be even less now, as there's been a *lot* of work put into reducing the input costs of things like pop bottles.) You didn't say this explicitly but the video suggests that the very tops and bottoms aren't usable. So if we assume that the bottle weighs 50g and 80% of that mass is usable, I'm getting 40g of filament per bottle. That means I need almost 540 2L bottles to make enough filament to break even. But... in Canada, I pay a 20 cent deposit when I buy that bottle, and if I don't return it to a recycling depot I'm out that money. 20 cents each on 540 bottles is 108$ in lost recycling fees... which is another 4kg of PET I need to recover that cost, Which is another 100 bottles. Which is another 20$ in lost recycling fees, so another kilo of PET I need, which is another 25 bottles and 5$ in recycling fees, and now I'm tired of doing this math so let's just say that's like 10 more bottles to get enough PET to cover all those fees. So 540 + 100 + 25 + 10 = 675 bottles.
I go through 1 to 2 2L pop bottles a week. Even at the high end of consumption, that works out to 337.5 weeks or about 6.5 *years* before I generate enough pop bottles to *recover my cost*.
And I honestly don't see most people managing it much faster, because even for folks who go through more PET than I do this is a *very* labour intensive process. I feel like it would be a minimum of 2 years to recover the costs. And you aren't even having a huge impact on the environment, because recycling PET at scale is something *we know how to do.*
Granted that I live in Alberta, which apparently is a world leader in this, and so there will be other jurisdictions that don't do nearly as good a job of dealing with waste PET. (83% of plastic bottles sold in Alberta get recycled, the internet tells me, compared with 60% in US states were there's a cost to the consumer and a measly 24% in US states where there's no bottle deposit) Someone living in such a place might well be able to make a measurable difference, at least on their own personal waste level. But realistically - PET is a materiel that can easily be dealt with in volume and at scale and the path to reducing plastic bottle waste is to picket your local government until they spend some money on recycling programs, not doing it yourself to make 3d printing material.
So this was really cool and a fun video and if the welder had existed in 2018 I might even have bought it (but now I don't *have* random ends of spools because I just let them run out in my X1C; even if I get the timing wrong the printer will sit there until I get home from work so I'm only losing time and a tiny amount of electricity). But there's just no use case here beyond "I want to be able to say I made this thing from a plastic bottle." Like any other home-recycling idea, the labour and equipment costs are just too high, and it will never be worth it. Recycling is a task that needs to be done at large volume, not in individual homes.
Recycling plastic for 3d printing would be so much easier with pellet printers. Have you looked into any of these out there? There's another TH-camr developing a consumer grade pellet extruder that looks promising, so you should really look into it since all you have to do is shred and dry used material to recycle instead of all this work just to use bottles. Really worth looking into.
@greenboy3d is the TH-camr mentioned.
@@xankersmith9194Yes . Following him closely.
ive seen something to this with in the last couple of years, using an old ender 3 board i had it still used some presliced gcode, and i see some similar resemblence to it, just a few differences, i did not like how the machine worked, and ended up tearing the machine part, luckily i only had a few bucks in it, that was just frame peices, printed parts, and a sacrafical mk8 heat block, alo i made a few caps with tire valves pumped them up, and using a drill, would spin the bottle as well as a heat gun to get a uniform thickness
it may have just been my setup, and some parts did break on me, but givven the nature of pete it is hard to process cuz of its issues with water vapor making it very brittle, though would make strong prints
yeah the recreator by JRT3D
i definetly like the ittiration and the steps further thats been taken with, it seen several things similar lately with automated joiners and winders really cool, and really is not too expensive compared to some other designs out there
but to help with getting a consistant thickness, after pressurizing attach to a drill and spin while using the heat gun should making things easier
Mostly interested in the splicer for regular filament
1st! Great video, greetings from Greece
Question around that mains wiring, if one was to hypothetically have a voron, are there any actual electricians who would even bother to check it out for you as a job? It is hard enough to get any tradie to do something regular properly, let alone something outside of the box in Australia.
Been interested in filament recycling recently and this might end up being the kit I go with. I just have a few questions such as the essentials kit comes with ALL of the hardware and all i would need to do is print and assemble everything? and would PETG be good enough to print with for the machines?
I have build two projects similar to this one, Recreator3D and PETamentor, and you can definitely print the parts out of PETG. Just note that this recycled PET is quite labor and time consuming and the yield is quite small, per bottle. On the plus side, rPET is quite sturdy and suitable for funcional parts.
I don't accumulate enough PET bottles for this to be an option.
But I send all my waste PLA to a filament recycling company, where I can directly buy recycled PLA - Haven't bought new PLA in ages.
Where is that company located?
There are many free and open source solutions for PET machines, why need to use paid one?
Everything has a cost and nothing is free. If it is, then you have to spend your time. For some of us, our time is far more valuable than the cost of a solution.
Nobody is forcing you to buy anything.
@@ahaveland The solution in the video was hugely time consuming too so that's not a great argument
@@oyuyuy That may be true, but it's not your time that's being consumed if others want to use it!
@@ahaveland So first you argue that time matters and now you argue that it doesn't? Hmm.
@@oyuyuy No I am not. It matters to some people and not to others. Is that so difficult to understand?
I love how ghetto/steampunk it looks
I'm curious if there is a way to insert a secondary material inside the PET tube that is formed from the bottle.
What is the hotend temperature while making filament.
Not really interested in PET bottle filament due to them being easily recyclable here. But I do like the filament joiner idea. However the joins didnt look that great, id really love a dedicated filament joiner that actually worked! I have so many leftover spools.
I'm thinking of making a filament machine of this type, but I run into the problem that there doesn't seem to be a 1.75mm extruder nozzle for sale that would be perfect to make
Just make your own by drilling out a brass nozzle to about 1.74mm, very simple to do.
Don't get a nozzle. Get a brass bolt, drill it with a 1.7mm drill bit and make the heated portion around 10mm. On the entrance drill the bolt with a larger bit to make a smooth chamfer. This will give you the best result.
@@KevinGroninga3D Thank you. I had been thinking about this possibility for a few days. I'm going to try that
@@Anonymous-qx5uk Thanks for the info. I'll try to do that
@@EderRSW My Recreator3D MK5 just uses the standard hotend from an Ender 3. I drilled the .4mm brass nozzle out to 1.7mm, then carefully wobbled the bit until the hole was just big enough to slide in a bit of commercially made filament (verify is 1.75mm). Then using some small countersink and smooth step bits, I funneled out the back of the nozzle and the aluminum heat block. This makes it easy to feed the thin narrow end of the PET ribbon into the back of the block and out of the nozzle so you can grab it with a pliers to get it started.
I feel like the 10c deposit shouldn't be the main factor in the machine paying for itself. Assuming your hobby time spent to process the plastic isn't worth much money to you, it'll slowly convert your free time into a cheap prototype material. It would take a lot of plastic bottles to get even a single kilogram out, but if online shopping is the fastest way to get filament in your area, it could even be the fastest way to get a very small amount of filament.
Please do one with VHS tape, straight from cassette ;)
This has been around for a few years now, I have made my own machine using an Arduino, have not bothered with joining as I have a smart run out sensor..... I used a few parts from jrtd3d...... Anything less than a 1L bottle is just not worth it.....
Subject is different but can you make a video for btt pad 7 with multiple instances?
While I don't doubt that it's a good machine, $200 to pulstrude PET seems quite a bit of a steep price to me. I built Function3D's pulstruder for probably less than a quarter of that and used far less filament to print the parts for it. That's just my two cents, YMMV. A cheap or unused 3D printer board (just needs to process very, very basic gcode), power supply, 1 stepper motor, hotend components and a simple screen and you're in business.
I can see some good use in the filament joiner though.
Still, you have to give credit to de designer for all the modeling and software/testing, plus quite a good work put into manuals. Considering the sourcing of the parts as well, I believe 200$ is a fair price.
So, this is just an ad then right?
This filament is empty inside. Why not put there some core? Like CF or nylon
I'm thinking about trying it
Nice, but tbh part with with removing the glue residue seems not very fun
it's not a problem.
Can it print miniatures?
$1000 and 3 months later you’ll have a whole reel of filament!😅
sadly takes hours to process a 5l water bottle that yields around 20g filament
One bottle cost here 25cent... its called Pfand 🤣👍
Granulation and screw remelting seems way better. At least it ignores bottle thickness and form limitations.
Nice way to turn 10c into 10$
Hi, can you give me stl. from pet cutter ? thanks
I'm all for recycling, but this not only looks like a nightmare, but an expensive nightmare. Both for the kit, and the amount of time it will cost you.
pet is one of the few plastics that are actually recycled, it's bit sad to see it scraped to make 3d prints that very probably won't be recycled
This rPET filament making process can be used in small scale as means of raising public awareness for the problems of plastic disposal and the importance of recycling.
@@NunoLanca It can be used to educate students, and change towards a more environmentally conscious society.
At 5.17 squiky old technology
Lol !
I made a Recreator3D for fun but the process of turnign the bottles into strips was too much of a hassle... I might try it again. This design looks to have all the same problems as the open source ones do, but it's more expensive and doesn't have the benefits of community modifications.
Why not recreator machine?
This tech makes sense for one use case - you cannot afford filament. Poor college students maybe? Kids with too much free time? Third world countries that have lots of PET bottles literally littered everywhere but cannot get filament cheaply shipped to their country would benefit from this type of system.
This process looks to have a very high energy and chemical usage making it worse environmentally than kerbside recycling.
This is fantastic. I believe the hobby needs to move away from the RGB-fest of emulating overclocked gaming PC's and towards functional, sustainable open source tech that we can spearhead such that it becomes affordable to all. If this stuff got half the attention that making dime-a-dozen busts of marvel characters in silk chromatic PLA did then I would be very happy.
You might want to scrub those clearly visible google drive URLs from your video. I'd guess they contain the designs he's trying to sell.
The amount of effort needed to recycle plastics (at home) is definitely not worth it. I get that 3d printer makers tend to have a guilty conscious when it comes to waste material, but there really is no feasible solution (except to just not give a shit)
Or you know just make a Recreator from Recreator3d and skip the annoying squeaking, weird noises inconsistencies etc…
I feel like the filament welder is the most useful part of this, just wish it was a bit simpler/cheaper.. Filament Welder Lite? BlargNaut
For me this is not viable at all. How many PETG rolls can I buy for just the price of all of this? Too much trouble to have nothing in return except wasted time and energy. The idea is cool, but the actual solution does not fit the purpose.
Gahhh!!! I HATE it when something is designed so the screws cut their own threads! Even seen it on Bambulab printers! It's an abomination! Use a nut and bolt or threaded insert for crying out loud!
Займаюсь вже 2 роки друком пластиком з бутлів. Половина що він показує це дурня. Багато чого не показує в кадр або швидко закінчує те що знімає бо там треш. Бо в мене таке було. Не хочу розписувати тут на 2 сторінки тексту, але він явно в цьому не спец.
If it isn't simple it wont happen ' not worth it
This literally makes _Zero sense_ -- human effort is just way way too valuable in comparison.
this is _extremely wasteful_ and actually achieves the opposite of purpose. How much plastic went to create these?
How much resources are being used by the human operating this?
And all for plastic which costs what maybe 1$ per kg and could be recycled on industrial scale with very minimal human effort?
This is fake green moronity at it's best. Destroy the world in the name of green values
Let's be honest : If this " shit " really cost 500$ in total, my 300$ 3d printer cost 3000$.
I still don't understand the motivation for this, it's TERRIBLE for the environment and it's not remotely economical.
Why do you think it's terrible for the environment?
@@jordini321 I don't think it is, I know it is. The machine itself is what? 2-3kg of plastic, metal and electronics? That alone is equivalent to a couple of hundred extruded bottles (18g/1,5L bottle according to the seller). But that's still a low estimate, since most of the material won't be good enough to use and since processing adds even more losses. You'd probably need to extrude 500+ bottles just to break even and I don't see anyone doing that. More likely is that people use the machine a couple of times, get tired of it and just end up creating 2-3kg of extra waste.
But even if you did extrude 500+ bottles, the fact remains that any recycling plant would put that PET to much better use than a consumer ever could anyway. The PET plastic could in fact be recycled 5+ times before degrading, which is a number you could only dream of when re-extruding PET filament. You're arguably just wasting the precious PET by attempting to make filament out of it.
Why? Complete waster of time and energy doing this.
I'm a teacher and have built a solution similar to this to raise awareness about plastic recycling. You should see kids faces when they realize that the bottle they brought to class is now a pipete holder in our lab.
@@NunoLanca Don't get me wrong. I'm totally in favor of plastic recycling. But only when it makes sense. In this video, how much plastic is used just to make the parts you need to make the plastic recycling machine? And how much energy? Plus the energy the machine itself uses? Only to eventually end up with a mediocre final product that probably created even more waste until you dial in the settings to use it. Recycling is great, when it makes sense. Personally, I'm a big fan of the 'thermal recycling' that some countries utilize. After all, most plastics originated from petroleum.
Thermal recycling is downcycling. Plastic is more valuable by volume than fuel.