I'm curious why they went with PLA with PETG. Usually PLA and PETG don't particularly like to stay together and since the benefit seems mostly cosmetic why did they not just do two colors of PLA?
Fair bet that this was all marketting. PLA won't bond to PETG and PETG won't bond to PLA. This was only ever aesthetic and once people realise that they are also forced to realise (as you have) that there were so many better options they had to pick from.
@@hot_wheelz it sounds like it could have some advantages in theory, like having the rigidity of pla but some of the toughness of petg. Just seems like they didn't really test that theory and just decided to use it just as marketing gimmick. Though maybe it can get better results when printed with hotter temperature or something, I'd wait cnc kitchen to test this with his more scientific approach before arriving to conclusions.
@@Iisakki3000 nice theory however no, because the layer adhesion is sooooo much worse, and you really can't fix that, any potential advantages are massively outweighed by the simple fact that PLA and PETG won't bond to each other.
thanks for the honesty with the filament. cant tell that while not a total fan that you also won't discourage anyone from trying it. I wonder how it would work if it was a pla and petg side by side like a dual extrusion instead of a core.
I just want to say how cool I think you are. You make 3d printing even more exciting than it already is. You inspire me with every video. :) I'm still pretty new to the 3d world but I am really enjoying it so far. I got my first spool of PET-G today so I am brushing up on the need to knows before I attempt to print with something new. I also got a spool of AMOLEN filament that I am super excited about. I just need to figure out what to print! Love you and your channel.
Yep, many of us have been saying for a while that this stuff is only good for aesthetic prints.... It works because the PLA bonds to the PLA but because the PLA to PLA surface area is significantly reduced, the layer adhesion and overall strength are both significantly reduced. The only machanical advantage is that it's slightly higher shock absorption because after extrusion, you're left with thousands of tiny petg strings all through the print which have a bit of bounce to them. This doesn't however, improve overall strength. All said it might look pretty in a few specific cases but that's literally all it's got going for it and as far as mechanical properties go, there's not a single use case where you wouldn't be vastly better off using a different filament, PLA or PETG on their own are both mechanically vastly superior than this mutt of a combination.
this is actually good, , i like hardness of PLA, and flexibility of PETG, this is a good combination, for household non straining stuff. Just like your printed vase with the petg core
With the new craze of the 3D printed basketball, it makes me wonder if there are tpu core pla or petg filaments? And if so, it would be nice to see if there are any benefits to to a tpu core. Great episode. Look forward to more.
Well done. For all sentiment/talk about "3D printing has gone mainstream", a lot of companies still just seem to throw things at a wall and see what sticks. Why they did 2 filament types that don't like to stick to each other? No idea. But hey, someone may have an interest and maybe there is some kind of benefit. Based on your tests, I'm not seeing it. And as someone with ~200 different spools, I would certainly not want to buy a filament to print only for it to look significantly different once printed.
id love to see a dual filament with part pla and part petg and see how it turns out. Thanks for this awsome content and id still be willing to try this stuff out.
I liked the look of the shadow purple (and knew my spouse would as well), so I already ordered some and have been printing with it. Seams nice, but had to print at 210 with a bed of 80+, all higher than normal. And I still get some bed adhesion issues, like to curl from the bed.
Is the heat resistance on par with petg, or closer to pla? If the heat resistance is on par with petg, but it prints as easy as pla, I could see that being a reason for the combo. The issue I see with printing it though, is that the two have different melting points, so are you overheating the pla to get the petg up to the proper temp, or is the petg being heated less than ideal which leads to less layer adhesion?!? I don't remember if you mentioned it, what temperature did you print the core filament at?
The thing is each layer looks like a sandwich of PLA-PETG-PLA with the top and bottom PLA bonded only through tiny walls at the edges, so the top and bottom PLA in the sandwich can remain bonded strong to adjacent print layers and separate from the PETG between them.
It would be interesting to do a tensile test with normal pla, pla with petg core, and petg. That would allow you to see exact data on stuff like yield strength, then again the orientation of prints is important.
Like a few people have said, it's probably weaker than the two separate materials PETG and PLA don't stick to eachother, so its like you had PLA with hollow layers, and PETG layers separate with plastic it can't bond too
PLA and PETG combination is a very odd choice. PLA and PETG don’t adhere well together. In fact, I typically use these two combinations as a support material for the other in a two head printer because it makes the support material much easier to remove. So the fact that you show poor layer adhesion does not surprise me one bit. What surprise me is why on earth did they think it was a good idea to blend these two materials together as a single filament in the first place.🤨
I think the combination of PLA and PETG is strange. These are two types op plastic which don't bond together very well. On multicolour printers using PLA as support for PETG prints (or the other way around) makes it very easy to remove the supports with (almost) no artefacts. For multi materials filament a core of TPU or nylon would be much more interesting.
I binge watch your shorts (mainly because im too broke to own a printer 😅) but i love your longer videos! The extra models and details about the filaments is so insightful 😄.
If you have $200 you can get the creality ender 3 v3 se but if you have $250 you can get the Bambu lab A1 mini without the ams which is much faster and much easier to use but it is smaller. Also, Aurora tech's website has great 3d printer recommendations for different price points.
![Gucci Mane & Sexyy Red - You Don't Love Me [Official Music Video]](http://i.ytimg.com/vi/j7IBqyFKT4c/mqdefault.jpg)
So glad to see a new longer format!
I'm curious why they went with PLA with PETG. Usually PLA and PETG don't particularly like to stay together and since the benefit seems mostly cosmetic why did they not just do two colors of PLA?
Fair bet that this was all marketting. PLA won't bond to PETG and PETG won't bond to PLA. This was only ever aesthetic and once people realise that they are also forced to realise (as you have) that there were so many better options they had to pick from.
@@hot_wheelz it sounds like it could have some advantages in theory, like having the rigidity of pla but some of the toughness of petg. Just seems like they didn't really test that theory and just decided to use it just as marketing gimmick. Though maybe it can get better results when printed with hotter temperature or something, I'd wait cnc kitchen to test this with his more scientific approach before arriving to conclusions.
@@Iisakki3000 nice theory however no, because the layer adhesion is sooooo much worse, and you really can't fix that, any potential advantages are massively outweighed by the simple fact that PLA and PETG won't bond to each other.
thanks for the honesty with the filament. cant tell that while not a total fan that you also won't discourage anyone from trying it. I wonder how it would work if it was a pla and petg side by side like a dual extrusion instead of a core.
I just want to say how cool I think you are. You make 3d printing even more exciting than it already is. You inspire me with every video. :) I'm still pretty new to the 3d world but I am really enjoying it so far. I got my first spool of PET-G today so I am brushing up on the need to knows before I attempt to print with something new. I also got a spool of AMOLEN filament that I am super excited about. I just need to figure out what to print! Love you and your channel.
Thanks for following up on this and testing it. Great video!
Yep, many of us have been saying for a while that this stuff is only good for aesthetic prints.... It works because the PLA bonds to the PLA but because the PLA to PLA surface area is significantly reduced, the layer adhesion and overall strength are both significantly reduced. The only machanical advantage is that it's slightly higher shock absorption because after extrusion, you're left with thousands of tiny petg strings all through the print which have a bit of bounce to them. This doesn't however, improve overall strength. All said it might look pretty in a few specific cases but that's literally all it's got going for it and as far as mechanical properties go, there's not a single use case where you wouldn't be vastly better off using a different filament, PLA or PETG on their own are both mechanically vastly superior than this mutt of a combination.
this is actually good, , i like hardness of PLA, and flexibility of PETG, this is a good combination, for household non straining stuff. Just like your printed vase with the petg core
Thank you for keeping us UpToDate on these new filaments.
Thanks for that thorough testing, I was curious how this filament was going to work.
The StrongHero3D PLA/PETG filaments I really like, Shadow Red most. Also they seem to hide layers better and seems stronger
With the new craze of the 3D printed basketball, it makes me wonder if there are tpu core pla or petg filaments?
And if so, it would be nice to see if there are any benefits to to a tpu core. Great episode. Look forward to more.
Well done. For all sentiment/talk about "3D printing has gone mainstream", a lot of companies still just seem to throw things at a wall and see what sticks. Why they did 2 filament types that don't like to stick to each other? No idea. But hey, someone may have an interest and maybe there is some kind of benefit. Based on your tests, I'm not seeing it. And as someone with ~200 different spools, I would certainly not want to buy a filament to print only for it to look significantly different once printed.
id love to see a dual filament with part pla and part petg and see how it turns out. Thanks for this awsome content and id still be willing to try this stuff out.
I liked the look of the shadow purple (and knew my spouse would as well), so I already ordered some and have been printing with it.
Seams nice, but had to print at 210 with a bed of 80+, all higher than normal. And I still get some bed adhesion issues, like to curl from the bed.
Thank you for testing this out. Can't say I'm surprised but it's nice to see someone compare the two to say for certain it's kind of a gimmick.
It would be great if you could anneal the parts to check for warping and strength
Is the heat resistance on par with petg, or closer to pla? If the heat resistance is on par with petg, but it prints as easy as pla, I could see that being a reason for the combo. The issue I see with printing it though, is that the two have different melting points, so are you overheating the pla to get the petg up to the proper temp, or is the petg being heated less than ideal which leads to less layer adhesion?!?
I don't remember if you mentioned it, what temperature did you print the core filament at?
Okay I like your channel so I subscribed! 😁
Thank you very much for the information, Courtney
Kinda surprised at the layer adhesion difference to be honest - it should still be PLA on PLA if the outer layer is PLA.
The thing is each layer looks like a sandwich of PLA-PETG-PLA with the top and bottom PLA bonded only through tiny walls at the edges, so the top and bottom PLA in the sandwich can remain bonded strong to adjacent print layers and separate from the PETG between them.
It would be interesting to do a tensile test with normal pla, pla with petg core, and petg. That would allow you to see exact data on stuff like yield strength, then again the orientation of prints is important.
Like a few people have said, it's probably weaker than the two separate materials
PETG and PLA don't stick to eachother, so its like you had PLA with hollow layers, and PETG layers separate with plastic it can't bond too
@@SuperSuperSpork that’s true, I am just curious to see the exact data
Can we get a video like this with the PLA + CF core
PLA and PETG combination is a very odd choice. PLA and PETG don’t adhere well together. In fact, I typically use these two combinations as a support material for the other in a two head printer because it makes the support material much easier to remove. So the fact that you show poor layer adhesion does not surprise me one bit. What surprise me is why on earth did they think it was a good idea to blend these two materials together as a single filament in the first place.🤨
I think the combination of PLA and PETG is strange. These are two types op plastic which don't bond together very well. On multicolour printers using PLA as support for PETG prints (or the other way around) makes it very easy to remove the supports with (almost) no artefacts.
For multi materials filament a core of TPU or nylon would be much more interesting.
only time i would use pla and petg together would be in a idex printer and using one of it as a support filament against the other.
I binge watch your shorts (mainly because im too broke to own a printer 😅) but i love your longer videos! The extra models and details about the filaments is so insightful 😄.
If you have $200 you can get the creality ender 3 v3 se but if you have $250 you can get the Bambu lab A1 mini without the ams which is much faster and much easier to use but it is smaller. Also, Aurora tech's website has great 3d printer recommendations for different price points.
すげー！
ROCKTOPUS NOOOOO!!!!!
Ur content is okay, but that adict look aint working. Hard to watch, fix it.
the f is wrong with you lol
@@robertschrauder7537 just stating the obvious, thats a user look she has going on. And its a shame to see it.
@@robertschrauder7537 honesty can be hard, doesnt mean its any less true. But you only want simp comments, that says allot.