Good work and nice presentation. Just a little hint, if maybe somehow come handy. The material at the feeder/hopper side (at the big extruders, there is usually heating zone 1), is room temperature and it gets melted by screw rubing it at the hot cylinder wall by decreasing a thread depth. That's why the temperatures can't be the same trough all cylinder. It coud work fine, but one of two things is surely happening. If the temperature is high enough, that material gets corectly melted at zone 1, then at the nozzle, the material is overheated. Or, if the material at the nozzle is fine, that means, that the matrial is not getting melted enough at the zone 1, so the thread decrease is forcing a hard material against the cylinder walls. That can damage the transmission or even break the screw (Did that at 90mm diameter screw). There are not 4 zones there for no reason. The temperature at the Z1/feeding must be higher than at z4/nozzle. With some PE-LD or similar materials, it is not such a big deal, but, PET is not that ""gummy". And one more thing. If your nozzle is yet not hot enough, try to lower the RPM, not increase it. That way the material stays in the cylinder longer, gets hotter, more liquid and the material itself heats the nozzle "from inside", which is much faster than waiting for a heater to do it. And also here, to raise the RPM or force feeding the material trough too cold nozzle, doesn't sound like some good idea to me. It might be expensive. I am not trying to teach you anything or being smart, my experiences are at bigger extruders. It's just a friendly mention, if maybe it can be of some use.
@@mactek6033 Agreed. Why the hell would anybody want to print with unmodified PET? If you want to recycle PET bottles, it would make more sense to use blow molding or something. If you can even afford these machines in the first place you'd not be that far off from being able to, from the sound of it...
@3devo … great project. It’s the beginning of cleaning up plastic bottles in for example Asian countries like Philippines. Still, the heating process seems not environment friendly. That part still needs to be developed to get a real eco friendly new product.
Great! I think your fume hood should be on all your processing stages. Pretty sure even grinding will flood the air with microparticulates of all that hormonal disruptor.
I like the idea but from a domestic point of view this is not sustainable for the cost of the machines which are so far the best designs i've seen but the cost needs a little tinkering and the troubleshooting that you are working on, i would love to be able to turn PET bottles into something useful as it's the kind of plastic waste that i produce the most of and i really like your mindset so i'll be watching your progress closely :)
3Devo doesn't wants to sell their extruders at all. I tried contacting them and their sales department is a disaster. They ask a thousand questions and even then they don't give a quote.Every time i email them they just reply with a different email with no follow-ups. Really sad to see the response but I at the same time I am happy because I found a much better supplier in China who designs a similar model with a few improvements and gives prompt reply. I have started recycling pet flakes without any issues as Chinese machine has proper feeder instead of gravitation vibration feeding which is a bad design for lighter material as it gets stuck in hopper. Pet is not a tricky material, its extruded all over the world, the technical team clearly dont have any background in plastic extrusion or recycling and practical issues that happen during extrusion
We purchased the 3Devo and it worked great for using the granule but when we used it for recycled PLA that was a bit tricky. They tried to help use and we spent more time developing the filament and were never successful. So very poor ROI for the cost. If you would like to try it I am selling mine.
I’d absolutely be interested but I’m afraid your price would be out of my range. These things are crazy expensive as it is and I wouldn’t expect you to let the machine go at a huge loss.
That is a pretty complicated process and the prices is crazy unless you have access to massive amounts of pet it would be cheaper just to buy filament.
Hi, What if the bottle wasn’t clean (like in an industrial process) How would you clean the grinned pet? What chemicals would you use? I’m trying to find information about it and it’s really hard to find Hope to hearing from you :)
very cool machines! but when i opened the website to look at prices of the machines i learned that the machines are quite expensive. and for the price of the machines i can buy filament for life for 3d printing
WWOOOOOOWWW man!!! This is fuckingly scary how this is awsome to me! I work in a polyester staple fabric, we make from 1 to 20 dTex around 2tons/h. We have pretty the exact process of melting and extruding the pet. Of course we have much more controlls than you, but it's a wow project, i will consider to buy it surely. Congrats again, let's clean da world!
Love the video, thank you so much for the effort! I have one suggestion. Do not use vacuum to collapse the bottles, use heat. Bottle 'blanks' are injection molded, but the blanks are then heated and expanded with air pressure in a mold to create the final form. If you heat up a PET bottle it tries to return to the 'blank' shape (it looks like a test tube). Take a look at the beginning of: "ruclips.net/video/9Eq4C9ch-vk/видео.html" for an example. The advantage of heat shrinking before grinding is a significant reduction in bubbles. After grinding you end up with hard lumps like pellets rather than thin stringy flakes.
I like it a lot, nice products and recycling PET is very environmentally friendly and easy as the average consumer uses and throws away lots of plastic bottles. However for the normal average consumer willing to recycle, I think the cost of a single machine is still too high unless one is 3D printing material intense prototypes. A nice cost for a single machine would be around $750 or around 3D printer costs.
Hi there, Yes, you can simply go to the menu and set any diameter you want between 0.50mm and 3.00mm. (including 1.75mm and 2.85mm, but also 1.76, 1.77,.....). Then, if the flow of plastic is stable with good settings, the optical diameter sensor will adjust the puller wheel speed automatically in order to stretch the filament enough to achieve the desired diameter. Keep in might though that in this case you might need to adjust the extrusion settings (heaters temperatures, screw rpm, fan cooling) until you have a nice flow of plastic again. I hope this helps.
Of course, from the environmental point of view, this makes sense if you are recycling several Kg of bottles at once. Throwing away ~1 Kg of DevoClean, old pellets and left over ground PET just to make one spool doesn’t add up. Nice device though.
2 things wrong I'm not a 3D printer yet. That I tune up to be and use recycled bottles would be the most cost-effective way for me to do it simplify your machine Moore I'm in the turn knob to program two simple
no, it works with any type of plastic although you may have to cut the plastic into chunks to get it to fit into the shredder. I'd imagine a hot wire cutter would be good for this
Hello We have one of your shredders. After washing the bottle on the inside - do we have to let it dry before feeding the shredder? This is unfortunately not clear in your video. Thank you very much.
Hi Khalil, Moisture can create different issues during the extrusion step, that is why we used our Airid dryer to dry the shredded parts. So yes you need to let the bottles dry out after you wash them but that alone might not be enough as the polymer will keep some of the moisture from the air. It is highly recommended to proceed with a drying step before the extrusion. Thank you.
@@3devo Hi Thank you for your help. I'm currently in Nicaragua with your shredder version 1.0 November 2017. We are not producing filament, because there is no market for that. That's why we are focusing on the flakes/granulates. How do you let the bottles dry out after washing? Do you have any specific tips? Because we're not gonna clean the bottle when it's entire, we cut it and then we wash it. This needs less water (herein Nicaragua sometimes there are water droughts). But now can't find a very efficient way to dry it - do you maybe have something in mind? Thanks a lot Khalil
Too much work for an expensive bunch of equipment with the possibility of negative results anyway. Who in there right mind would think this would save enough money to pay for itself. There is a $400 option online less complicated and less likely to make bad filament without running all that waste ran in this video.
The equipment is very expensive. If you want people to recycle at home, you need cheaper products. At least here in South America nobody is going to buy something for more than $1000
This is what happens when you put a man on salary. No relationship with customers or the industry just his paycheck.....this should only be for educational labs nothing more.
![Lil Uzi Vert - Chill Bae [Official Music Video]](http://i.ytimg.com/vi/D7F42F_JM3U/mqdefault.jpg)
Good work and nice presentation. Just a little hint, if maybe somehow come handy. The material at the feeder/hopper side (at the big extruders, there is usually heating zone 1), is room temperature and it gets melted by screw rubing it at the hot cylinder wall by decreasing a thread depth. That's why the temperatures can't be the same trough all cylinder. It coud work fine, but one of two things is surely happening. If the temperature is high enough, that material gets corectly melted at zone 1, then at the nozzle, the material is overheated. Or, if the material at the nozzle is fine, that means, that the matrial is not getting melted enough at the zone 1, so the thread decrease is forcing a hard material against the cylinder walls. That can damage the transmission or even break the screw (Did that at 90mm diameter screw). There are not 4 zones there for no reason. The temperature at the Z1/feeding must be higher than at z4/nozzle. With some PE-LD or similar materials, it is not such a big deal, but, PET is not that ""gummy".
And one more thing. If your nozzle is yet not hot enough, try to lower the RPM, not increase it. That way the material stays in the cylinder longer, gets hotter, more liquid and the material itself heats the nozzle "from inside", which is much faster than waiting for a heater to do it. And also here, to raise the RPM or force feeding the material trough too cold nozzle, doesn't sound like some good idea to me. It might be expensive.
I am not trying to teach you anything or being smart, my experiences are at bigger extruders. It's just a friendly mention, if maybe it can be of some use.
Y'all have no idea what this guy is doing here.This is the future ,imagine shredding your waste bottles and making stuff from it.This is great!
I'm not doing this. It's stupid.
@@mactek6033 Agreed. Why the hell would anybody want to print with unmodified PET? If you want to recycle PET bottles, it would make more sense to use blow molding or something. If you can even afford these machines in the first place you'd not be that far off from being able to, from the sound of it...
@3devo … great project. It’s the beginning of cleaning up plastic bottles in for example Asian countries like Philippines. Still, the heating process seems not environment friendly. That part still needs to be developed to get a real eco friendly new product.
Are you planning any products that are closer to a consumer price point anytime in the future?
Userfriendly equipment. 10/10.
Great!
I think your fume hood should be on all your processing stages.
Pretty sure even grinding will flood the air with microparticulates of all that hormonal disruptor.
I like the idea but from a domestic point of view this is not sustainable for the cost of the machines which are so far the best designs i've seen but the cost needs a little tinkering and the troubleshooting that you are working on, i would love to be able to turn PET bottles into something useful as it's the kind of plastic waste that i produce the most of and i really like your mindset so i'll be watching your progress closely :)
Can we use different brands of PET bottles and combine together for making filament in 3 devo machine
Very promising. Great progress so far. Wishing your team future success.
Good analysis, keep it up
3Devo doesn't wants to sell their extruders at all. I tried contacting them and their sales department is a disaster. They ask a thousand questions and even then they don't give a quote.Every time i email them they just reply with a different email with no follow-ups. Really sad to see the response but I at the same time I am happy because I found a much better supplier in China who designs a similar model with a few improvements and gives prompt reply. I have started recycling pet flakes without any issues as Chinese machine has proper feeder instead of gravitation vibration feeding which is a bad design for lighter material as it gets stuck in hopper. Pet is not a tricky material, its extruded all over the world, the technical team clearly dont have any background in plastic extrusion or recycling and practical issues that happen during extrusion
Hi 👋.can you help me?
We purchased the 3Devo and it worked great for using the
granule but when we used it for recycled PLA that was a bit tricky. They tried
to help use and we spent more time developing the filament and were never successful.
So very poor ROI for the cost. If you would like to try it I am selling mine.
i'm just living the exact same situation ....
I’d absolutely be interested but I’m afraid your price would be out of my range. These things are crazy expensive as it is and I wouldn’t expect you to let the machine go at a huge loss.
That is a pretty complicated process and the prices is crazy unless you have access to massive amounts of pet it would be cheaper just to buy filament.
Hi,
What if the bottle wasn’t clean (like in an industrial process)
How would you clean the grinned pet?
What chemicals would you use?
I’m trying to find information about it and it’s really hard to find
Hope to hearing from you :)
Using mineral spirits to remove oil adhesives
very cool machines!
but when i opened the website to look at prices of the machines i learned that the machines are quite expensive.
and for the price of the machines i can buy filament for life for 3d printing
WWOOOOOOWWW man!!! This is fuckingly scary how this is awsome to me! I work in a polyester staple fabric, we make from 1 to 20 dTex around 2tons/h. We have pretty the exact process of melting and extruding the pet. Of course we have much more controlls than you, but it's a wow project, i will consider to buy it surely. Congrats again, let's clean da world!
How do you UV protect PET after recycling into finished products?!!
I love the idea,it's a great one
can you just dry in the same container where you melt it? and then increase temperature just before melting
I'm interested in how can we improve colours values and whitening index of Polymer prepared from PET bottles. Can you help..??
Hi, do you have rpet filament to be ship here in the Philippines
Love the video, thank you so much for the effort! I have one suggestion. Do not use vacuum to collapse the bottles, use heat. Bottle 'blanks' are injection molded, but the blanks are then heated and expanded with air pressure in a mold to create the final form. If you heat up a PET bottle it tries to return to the 'blank' shape (it looks like a test tube). Take a look at the beginning of: "ruclips.net/video/9Eq4C9ch-vk/видео.html" for an example. The advantage of heat shrinking before grinding is a significant reduction in bubbles. After grinding you end up with hard lumps like pellets rather than thin stringy flakes.
I sub without second thought.
I'm looking everywhere for this kind of tutorial. Thank you.
Just a question...
How to make PET to PETG?
Read up on the chemistry dude.
its a different plastic iirc
I like it a lot, nice products and recycling PET is very environmentally friendly and easy as the average consumer uses and throws away lots of plastic bottles. However for the normal average consumer willing to recycle, I think the cost of a single machine is still too high unless one is 3D printing material intense prototypes. A nice cost for a single machine would be around $750 or around 3D printer costs.
These 3 machines are around 16k€. All of a sudden I don't feel like saving the planet :(
Wow thousands of dollars in equipment to turn free raw materials into substandard filament. Thanks !
what about precision of filament's diametr?
My question: can you change the diameter of de filement. My 3D printer can handle 1.75 mm
Hi there,
Yes, you can simply go to the menu and set any diameter you want between 0.50mm and 3.00mm. (including 1.75mm and 2.85mm, but also 1.76, 1.77,.....).
Then, if the flow of plastic is stable with good settings, the optical diameter sensor will adjust the puller wheel speed automatically in order to stretch the filament enough to achieve the desired diameter.
Keep in might though that in this case you might need to adjust the extrusion settings (heaters temperatures, screw rpm, fan cooling) until you have a nice flow of plastic again.
I hope this helps.
Of course, from the environmental point of view, this makes sense if you are recycling several Kg of bottles at once. Throwing away ~1 Kg of DevoClean, old pellets and left over ground PET just to make one spool doesn’t add up.
Nice device though.
Yeah. Tho 1kg is too much. But if we mic this with virgin petg it'd be recycled and spread over 1-3kg of pet
How much would this set up cost ?
2 things wrong I'm not a 3D printer yet. That I tune up to be and use recycled bottles would be the most cost-effective way for me to do it simplify your machine Moore I'm in the turn knob to program two simple
Is this only applicable for PET bottles?
I would expect PET fruit punnets and if properly washed, meat trays, may work too
no, it works with any type of plastic although you may have to cut the plastic into chunks to get it to fit into the shredder. I'd imagine a hot wire cutter would be good for this
how about shred plastic bags
Hello
We have one of your shredders. After washing the bottle on the inside - do we have to let it dry before feeding the shredder? This is unfortunately not clear in your video. Thank you very much.
Hi Khalil,
Moisture can create different issues during the extrusion step, that is why we used our Airid dryer to dry the shredded parts. So yes you need to let the bottles dry out after you wash them but that alone might not be enough as the polymer will keep some of the moisture from the air. It is highly recommended to proceed with a drying step before the extrusion.
Thank you.
@@3devo Hi
Thank you for your help. I'm currently in Nicaragua with your shredder version 1.0 November 2017. We are not producing filament, because there is no market for that. That's why we are focusing on the flakes/granulates.
How do you let the bottles dry out after washing? Do you have any specific tips? Because we're not gonna clean the bottle when it's entire, we cut it and then we wash it. This needs less water (herein Nicaragua sometimes there are water droughts). But now can't find a very efficient way to dry it - do you maybe have something in mind?
Thanks a lot
Khalil
???
Is the extruder have a linear screw shape or you made some variations like a tighter or wider passagge?
What species of pets are reccomended?
Gracias. Thanks. Merci.
6:30 Imagine bolts falling into the hopper while machine is working
Look like little bit complexe but I hope it will be the future
What I notice is that on the home page on their site they see a black man, but that below there is no black man who makes up the team.
What did you say your name was?
Really cool, but seems like a lot of work!
In countries that pay 10c per bottle pet bottles aren’t really an attractive source of plastic to upcycle
Very nice product, only problem: for privat people to expensive :)
👍💯
Oh P.E.T plastic.... thank gog
Too much work for an expensive bunch of equipment with the possibility of negative results anyway. Who in there right mind would think this would save enough money to pay for itself. There is a $400 option online less complicated and less likely to make bad filament without running all that waste ran in this video.
Hi
You are over complicating some of these steps
They also totally gloss over the fact that PET and PETG are not even the same material. PET is not typically used for 3d printers.
The equipment is very expensive. If you want people to recycle at home, you need cheaper products. At least here in South America nobody is going to buy something for more than $1000
the machines look good, the video is a disaster
I'm sorry I thought bottle caps are made from HDPE.
Too expensive.
PET not good for 3D product. need be PETG (include glycol)
140C to 5hours amazing
waste of energy :)
This is what happens when you put a man on salary. No relationship with customers or the industry just his paycheck.....this should only be for educational labs nothing more.
😁🤦
too much things
Too many equipment i want to do recycling but too many expences
To produce PET bottle bales, SINOBALER can help. You can view our various PET bottle balers at www.sinobaler.com/application/hollow-plastic-baler/