A minor point: PETG isn't PET with added glycol. PET is made by polymerising ethylene glycol with terephthalic acid. PETG is made in the same way but with some or all of the glycol substituted by a different monomer, such as CHDM, which reduces the crystallinity. PETG is PET with less glycol.
@RaphaelRema2 жыл бұрын
Thanks for saving me money, as I was about to buy a spool of PCTG. Your channel is one of my favorites. Hope Prusa gives you some attention. Keep up the good work 👍
@Sjoerdtje Жыл бұрын
As pointed out by someone else, I honestly think that the addition of graphite affects the strength of the filament. If you looms for comparison at PLA, black matt is almost always the weakest filament. I'm now using PCTG clear myself and I'm really impressed by its strength tbh.
@workingTchr Жыл бұрын
Thanks, you're doing a great service not only for consumers making a decision but for producers who need to know that independents are keeping close track of them.
@PenguinFach2 жыл бұрын
Very comprehensive testing, but I think you should really have compared two clear unfilled filaments for this to be a fair test. Filament manufacturers base their materials claims on bulk raw plastics, and this never takes into account the changes that may take place when 3D printing, but fillers and pigments also modify filament properties and they can have a huge impact on characteristics. I printed some premium brand gold PETG a couple of years ago, and the micaceous filler used to give it sparkle so severely weakened the material that the resulting prints were unusable and shattered like spun sugar. I would be very interested to see this repeated with a clear PCTG to see if this makes a difference.
@MyTechFun2 жыл бұрын
Eh, PCTG too expensive just to repeat something like this. Specs are given independent from color anyway. (small channel like mine earns only few bucks per video and if I am not curious about the project, I don't want to invest and be minus with the budget). But if you will buy that nature PCTG and send it to me, I will be happy to test it. Currently I am more curious about Prusament filaments, collecting donations for it ;-)
@StanEby12 жыл бұрын
Turn the fan off and use an enclosure for PCTG. Would also be very, very interested to see the results using Essentium PCTG. If the results of printing the Fiberlogy fall well below the manufacturer's claims then one has to ask themselves 1) can the company be trusted? or 2) did I do it correctly? Call me Mr. Obvious, I know. I enjoy the videos and your methodology. All the best.
@MyTechFun2 жыл бұрын
I just followed the instructions about fan and enclosure (also Fiberlogy confirmed this to me before review, I asked them). About impact strength I asked that myself and it is good that I prepared additional test specimen. My testing method is good because in most cases it confirmed manufacturers specs (eSun, Polymaker)
@lorenzobruschetta99192 жыл бұрын
@@MyTechFun i’m sorry ti say, PCTG is total trash no matter how you print it. The hype is the same tam with CF nylons, or nylon in general, the creep os so much that’s basically unusable for any mid to long therm load applications. I tested almost every filament except for PEEK / Ultem and some exotic/ solubles. The conclusion i made after years of trial is that there’s 3 filaments you can really work with: -PLA for ahestetics -ABS for 99% of functional parts with an enclosure at least 65c, 85 is good, avoid ABS plus and stuff like this -Pure PC if you have at least 110 c chamber or Prusament PC blend if you can go at least 70 for mid dimension parts 50 for smaller Pretty much anything else is a toy and not suited for production purpose. PETG is funny cause has a beautiful color/finish but it’s a toy filament, you can use it around 45c continuous service, maybe 55/50 if blend is nearer to pure PET, around 80 if pure PET but you will need heated chamber so at that point go ABS
@dzitiatri2 жыл бұрын
@@lorenzobruschetta9919 I cannot read this nonsense. You probably mismatched PETG with ABS. Petg doesnt require heating chamber at all, as it prints like PLA, but has better impact strength and resistance to temperature. The Abs is even better but it requires VERY STRONG ISOLATED heating chamber with able to reach high heating temperature. It is also most toxic of all filaments as you can feel the nasty smell with a nose.
@lorenzobruschetta99192 жыл бұрын
@@dzitiatri i own a 3d printing business, we print thousands of parts and we are specialized over series and large parts, clearly you never done large prints with PET or PETG. EVERY material you print benefit from being printed in an environment brought at TG/Vicat. This is the only way to ensure perfect stress release and dimensional accuracy, resulting in higher mechanical properties and null warping. Some filaments, like PETG, PLA have such a low TG and stress forces when printed that it’s possible to print small to medium parts without any issue even in open style printers. This is possible due to the inertia of the molten mass deposited when printing wich increase the average temperature of the part enough to act like an annealing/post stress release process similar to printing in an heated environment. Also the inherent properties of the matherial, particularly styrene based polymers, have hi elongation at break and low stiffness combined with low tg wich are ideal properties when it comes to print open air, less when you have to bear loads at hi temp. However if you start printing very large parts, with PETG for instance, in an open style printer, the molten mass inertia and the build plate generated heat won’t be enough to keep the average part temperature near TG/Vicat, this will result in warping and low Z strenght up to delamination. You don’t believe me? Try to print a 500 cm3 part in PETG on an open style machine and you’ll discover a whole new world. That’s also one of the reason amateur open style machines are generally small sized. Btw that’s not just my opinion but basic polymer science itself. So before telling someone’s sayn nonsense maybe re evaluate the amount of experience you have in the field.
@dzitiatri2 жыл бұрын
@@lorenzobruschetta9919 I agree with you 100 percent, that all material print more precise in heated chamber. But you missed answering to your fault statement question. You wrote that "aroubd 80 if pure PET but you will need heated chamber". I printed thousands of parts too without heated chamber. Parts from 2cm till 12 cm diameter. And never had a problem. The biggest problem without heated chamber is if you use full infill and bug part then it will bend the whole heatbed and the part
@3dtechnologies1532 жыл бұрын
This comparison is not typical because fiberology petg i better then most other petg. Comparing pctg to other brands of petg will give you a bigger difference between the materials. Fiberology should be commended for providing this material in varieties of colors but at the same time they keep raising the cost. The cost now is significantly higher then it was in this video. Add the fact that you only get 750g instead 1kg of material and the cost is too high. I prefer working with pctg over petg as it does print better with less stringing and has a wide range of temperatures where it is effective (does require higher temps than petg but works well in a larger temp range). I like pctg and wish more companies would make it at a more reasonable price. Also wish fiberology would use 1kg spools and offer bigger ones.
@MyTechFun2 жыл бұрын
Thanks for useful info
@tavelkyosoba2 жыл бұрын
I've been using this PCTG for some time and it completely blows PETG out of the water. I print 270C with 5% cooling fan. I've also found it can be annealed but crystalizes VERY slowly. It takes a 3 hours at 120C to fully crystalize and shrinkage is around 5% (z is +5%) without packing. I salt pack anything that can collapse when soft and shrinkage that way is also minimal. I would be very interested to see some of your rigorous testing done on annealed samples as well!
@TheSmokintbird2 жыл бұрын
I have no idea if the hardness tests are useful or not but I hope you continue the tests anyway! Love your test videos
@uhu46772 жыл бұрын
Those results pretty much confirm my own tests. PCTG is basically the same as PETG. The claims of much better layer adhesion and much better impact resistance are both false.
@matushonko72232 жыл бұрын
essentium does seem to work out, based on CNC Kitchen- fiberology's does not, which is a shame
@koenvanduffel20842 жыл бұрын
I tested Fiberlogy PCTG and compared it to RealFilament PETG. Basically my conclusion (though by far not as extensively tested as you did) was the same. I had a hotend - extruder direct drive mount made of this Fiberlogy PCTG and found that the layers showed fatigue cracks after a few months of usage. The claim of unidirectional strength I did not see even I reduced the fan speed to achieve better layer adhesion.
@dzitiatri2 жыл бұрын
Thank you. I bought Lithuanian maker filalab pctg and will try to compare with petg. I heard essentium has good advertising, but never tested this out. Although I think filament makers are become a marketing gimmicks like all the other industries. I will still give it a try with flalab
@hashbringer9752 жыл бұрын
@@dzitiatri i used filalab pla as my first filament. absolutly loved it, gonna try their petg spools, hopefully it stands up to my expectation. also price wise it's pretty good here in latvia
@dzitiatri2 жыл бұрын
@@hashbringer975 they are quite good for the price. Better than devil design or spectrum.
@marijuanas2 жыл бұрын
Nice test, I haven't tried PCTG myself but love PETG!
@Factsfun-kg4xc7 ай бұрын
Textured PEI sheet is my go to for basically everything even for TPU its perfect.
@maximilian.arnold2 жыл бұрын
I really like your in depth technical videos.
@g.42792 жыл бұрын
That you for those results! I am very disappointed that PCTG is so unimpressive. I feel like you could get better results just by using a PETG blend that increases impact resistance. Similar to what companies do with PLA+.
@volando347 ай бұрын
Yeah, it's absolutely the color additives. This test didn't control for the one obvious factor and is thus completely invalid, which is a shame because it would be great to know these results from the same manufacturer even.
@runklestiltskin_24072 жыл бұрын
I love both of these fiberlogy materials
@dano57392 жыл бұрын
I noticed you printed the petg parts with 30% cooling and pctg with 50%. In my testing with pctg and petg cooling makes a huge difference in layer adhesion. For the most parts you probaly dont even need part cooling. So I am not sure this is a fair comparison
@StanEby12 жыл бұрын
I totally agree with DanO and also add that an enclosure is important for PCTG, IMHO.
@MyTechFun2 жыл бұрын
In these comparison videos I am just following the instructions from manufacturer. Before test I even contacted Fiberlogy about this question and they confirm this (no need for enclosure+fan speeds). If you have the enclosure, maybe ABS or ASA is a better choice.
@dano57392 жыл бұрын
i am not sure if using an enclosure has as much of an impact on strength and layer adhesion as turning off part cooling. I get it that you are using the suggested print settings, but in my testing it turns out that turning off the fan makes a huge difference.
@uhu46772 жыл бұрын
I tested 30% vs. 50% (MK3S+) on this PCTG, and it makes no difference to layer-adhesion. It only gets much better when turned off. As soon as I applied enough cooling to visibly improve overhangs, layer adhesion suffered (same for PCTG and PETG).
@dzitiatri2 жыл бұрын
@@uhu4677 the cooling is pain in the ass for all printing filaments i think. Although did you see any improvements from PCTG comparing to PETG ?
@dtaggartofRTD2 жыл бұрын
about matches my findings on the material. I'm tempted to give it another try now that I have a printer that can safely handle 270C print temperatures. I found that I got best results with the cooling fan completely off for everything except steep overhangs and bridging.
@user-uj4mg4mz8g Жыл бұрын
thank you for the honesty and clarity of these tests. these make a good choice very easy.
@Dramaican882 жыл бұрын
Great comparison video! I have only used Fiberlogy PETG dark red and dark blue before, because I wanted those colours for some specific prints. Printed ok, but nothing special. For PCTG, I think Essentium has a good version and Fiberlogy just tried to copy the idea, but I am not sure if they got the recipe right. I would not use their PCTG to be honest. I have found that RealFilaments and FormFutura PETG are quite good in quality and if I want to go cheap I go for Filament PM or Amazon basics that is surprisingly good for the price. Also I don't get why the use so much plastic for their spools, since a lot of companies are either going for cardboard spools or at least spools with holes like Prusament to use less plastic.
@MyTechFun2 жыл бұрын
Thanks for the tips, probably I will test Essentium too. And yes, I could mention that in the video, so much waste material stays in spool holder after it is empty. I like those new cardboard spools (for example Polymakers)
@santiagoblandon30222 жыл бұрын
Excelent videos! I can't thank you enough. I have a couple of questions: If the filaments print well at the higher end of the temperature range, why not print them at that temperature for improved layer adhesion? and the other question is: PCTG can crystallize, I wonder how the mechanical properties of PCTG improve when annealed.
@curtchauvin53032 жыл бұрын
wow , i had the same thoughts about the higher temp ...
@AndrewAHayes2 жыл бұрын
2 great questions!
@MyTechFun2 жыл бұрын
When I am doing a comparison video, I always try to test in the middle of recommended temperature range. That's what most users will do. Hi temp may also case problems with oozing, overhangs, stringing.. of course, I have a temp tower for that, but again, most stock Enders cannot print above 240C (in this case PETG) or if user have all metal hotend, atill have limitation of 260C by firmware (PCTG). If I do only one material full test, then this is also one of testing parameters (temp vs layer adhesion)
@AndrewAHayes2 жыл бұрын
@@MyTechFun Yes, I thought that taking the median temperature would be the prudent thing to do for the test considering there was no noticable changes in print quality across the three temperatures in the test tower, how ever in real world printing I would have taken the highest temperature possible before any quality degradation purley for the increased adhesion properties of higher temp plastic.
@santiagoblandon30222 жыл бұрын
Oh I see. Thanks!
@noggin732 жыл бұрын
Very nice. Those Fiberlogy spools have a lot of unnecessary plastic.
@volando347 ай бұрын
Yeah, those secondary roundover bobbins (that you can thankfully take off or they wouldn't fit into AMSs)... like, why??
@oneheadlight800010 ай бұрын
270, 30% fan gives excellent results for PCTG from my experience.
@veegee243 ай бұрын
What you're measuring there is not creep, it's stress relaxation.
@tonitom_re2 жыл бұрын
I like the filament from Fiberlogy but don't like their spools. Nice Video!
@MyTechFun2 жыл бұрын
Interesting, so many comments mentioned their spools. Wasting a lot of plastic.
@marcusbuschbeck11212 жыл бұрын
Wow, good Test. I am actially test it for my Cell Holders. I print it with 260 and the Results have a better haptict then PETG. But i used PETG from DasFilament in Comparison to this Filamentum PCTG. I will turn on testing..
@windmill104 ай бұрын
Great video. Only wish that somehow you could also test UV resistance. Because I am looking for filaments other than ASA for outdoor applications. But that would be a very longlasting and timeconsuming test. But maybe doable by hanging an object under load in different filaments outside for a couple of months in the spring and summer.
@antunrosovic72848 ай бұрын
Did you know the same type, same model and made by same producer filament, but different color have different properties because of different pigment? This difference should be even bigger if there is no pigment in a filament, I think you should repeat the test with the same color filaments.
@NickBR572 жыл бұрын
Very interesting and useful. Typical of Prusa to ignore you I guess - if you can't do something for Josef's personal reputation it's no deal.
@MyTechFun2 жыл бұрын
Eh, yes. Prusa product reviews you will see only on popular channels and I have a feeling that they may be sponsored too. Anyway, no reply from prusa so far, so I ordered all 4 prusament types (PLA, PETG, ASA and PC Blend). The PC Blend CF version will be in separate video. Maybe directly compared to non CF version.
@HerrBert859 ай бұрын
A german Channel testet Pctg also, and he has more Layer adhesion, printed with 270°
@GeneralPurposeVehicl2 жыл бұрын
12:09 You could not have asked for a better looking right angle bend and chamfer out of the PETG! Damn!
@abdullahhamad41082 жыл бұрын
hello !! about comparison .. i think there is wrong but not sure maybe you can correct me if i am wrong .. u need to make fan cooling test to see the best cooling for each filament different cooling speed will make different results !!! so i am not sure if that fair comparison!!! .. and by the way you are one of the best KZfaq especially in 3D ,, i have learned allots from your video .. regards
@MyTechFun2 жыл бұрын
Cooling affect mostly the layer adhesion. Those test specimens have very big overhang, it needs that cooling, close to max recommended value.
@avejst2 жыл бұрын
great video and test as always 👍 ASA could be an option too, Love that filament Love your relaxed approach 👍😀
@MyTechFun2 жыл бұрын
Thx, yes ASA is better than ABS (less warping and fumes)
@bigmanlittleduck2 жыл бұрын
Great video and analysis.
@olafmarzocchi6194Ай бұрын
A bit of a pity that PCTG, said to be more transparent, was not tested in transparent/natural colour..
@AndrewAHayes2 жыл бұрын
I like the design of that filament roll, although I would prefer recycled cardboard
@MyTechFun2 жыл бұрын
Looks like many others have same opinion
@uhu46772 жыл бұрын
I really HATE the design of the Fiberlogy rolls. They just waste space (often a problem in dry-filament-boxes), there are not many places to put the filament-end, and they offer no benefit at all.
@SianaGearz2 жыл бұрын
It's aesthetically pleasing but very wasteful. In a grand survey of empty-spool weights, theirs came in second after i forget which spool that doesn't exist any longer, and it was quite distant to the rest. There isn't even a lip to attach your own filament end-clip. To the end of reducing spool waste, they do offer Masterspool-compatible refills, so that's something you can take them up on.
@uhu46772 жыл бұрын
@@SianaGearz Honestly they should just change their design.
@dzitiatri2 жыл бұрын
@@uhu4677 i think the best if eu could just make recycle point. I have used over 100 spools and thrown them to plastic waste. But they could easily be recycled, because: they are from 1 single material , their are made from PC or ABS, easy shape to crush, they can be used to make filament or be reused. But whole EU and US, dont give a fuck as long as all makers can get cheap filament granules from china.
@bleach_drink_me Жыл бұрын
Was looking to get some pctg but looks like I will be better off buying petg. I was hoping for better from it. On second thought I may get some pctg for printing hotend carriages. Maybe not since I can print abs. I am trying to justify it to myself I guess. As for the hardness test, not sure it's useful but welcomed to see. If it doesn't add a lot of extra time please keep doing them.
@NvrchFotia2 жыл бұрын
Please do the impact test in both print orientations.
@lorenzobruschetta99192 жыл бұрын
For business purpose i use only FormFutura. Carboard spools on small to medium format spools very good filaments
@conorstewart2214 Жыл бұрын
@@lorenzobruschetta9919 okay? So what? That has nothing to do with the comment you replied to.
@BorisH2000UK Жыл бұрын
Hi Igor, great video, as always. Have you tried contacting Fiberlogy for comment on your results? Many people will be buying their PCTG filament (and paying a lot more) because of the specification. It would be interesting to know why Fiberlogy claim such a high impact resistance when your test results show a very different results.
@MyTechFun Жыл бұрын
They wasnt happy and they explain weaker results with assumption that I used too much part cooling (30% instead 25%). But even if so, that may affect only layer adhesion, not impact and other tests.
@BorisH2000UK Жыл бұрын
@@MyTechFun yeah, 30% part cooling instead of 25%, like that would make any real difference 🤣🤣🤣 Thanks for replying
@EK1H2 жыл бұрын
Part cooling is for trinkets
@crashoverride6413 Жыл бұрын
it's a very intresting test, 'cause i was trying to get PCTG - and got PETG (wrong label, at least a temp-tower - what i always print - showed that it was the wrong filament). i'm struggling a bit, 'cause "normal" settings can't be used here (i see wich you had there; irony, mine are a little bit higher for PETG - almost similar for PCTG (230°c), 'cause that was the temperature what was shown for me the best), i had to fiddle on several settings (print temperature (especially first layer), print speeds, bed temperature (especially first layer), cooling flow etc.) to get "usable" results. i might even had another spool of PETG here (different brand), so i'll see if that one is better - 'cause it seems, that my spool is from a bad quality (maybe even 'cause it was wrong labeled). for The spool design - it's nicht to look at, but bad when your printer (a artillery genius for my part) doesn't had a single "hook" for printing, as even 2 rolls - 'cause then the spool will brake itself a bit from scratching at the side of one of the spool-holders. maybe i can change that with a different part, 'cause it seems that's 'cause of the filament-runout-sensor (so i just need that to relocate). for my part, that shows me, that i might not try to get PCTG again (these little bit "more temperature" isn't something what i would need - it was easier the "talk that is a alternative and as easy to print as pla) - and might stay with PETG.
@rayongracer Жыл бұрын
That was dissapointing about pctg, i guess pla and petg plus the use of ASA in enclosure when need more thermal resistance and best uv resistance as I been doing is just to continue on.
@TachirosLament Жыл бұрын
Thanks!
@suphuregis2244 Жыл бұрын
Very helpful
@AndrzejBrudniak2 жыл бұрын
Interesting results. I use both of it and thought that their PCTG was much better. It feels like it is better but sadly not as good as advertised
@MyTechFun2 жыл бұрын
Yes, that was my conclusion too. I was expecting for much higher impact resistance :-(
@AndrzejBrudniak2 жыл бұрын
@@MyTechFun They also have CPE HT but it is more expensive , 0,75kg spool and only in one color. They compare it to PC but easier to print. It is also cheaper than PC Blend by +/- 25 euros
@uhu46772 жыл бұрын
@@AndrzejBrudniak The comparison to PC is probably bogus. I have CPE HT here. I print it at 290°C nozzle and 115°C bed (which is about the maximum of my MK3S+ ... higher might be even better). It warps a lot easier than PETG/PCTG. However I have yet to print PC to see, if that's even harder. The mechanical properties are VERY similar with one exception: When pulling it doesn't snap, but slowly yields. Didn't test the temperature resistence yet.
@AndrzejBrudniak2 жыл бұрын
@@uhu4677 PC Blend warps but for small parts is ok with a little brim without enclosure
@dzitiatri2 жыл бұрын
Thank you for logical review. In Lithuania we also have fiberlogy as Poland is our neighbour and it isn't very far to deliver from. I think it has one of the best qualities for it's price, just before prusa material. All devil design and spectrum and gembird were good, but they were unstable at the production during different time, usually with inconsistent diameter of filament, dusts humidity issues and etc. Also congrats to Hungary in elections for showing how they love their families, your country is my idol right now in the whole EU.
@davidnogueira38843 ай бұрын
Very good video and test 👍 Pctg is a garbage of material...i did test diferent brands of it and is a waste of money.. petg is 99% similar and much more cheaper.
@anarkiamusicmovie70362 жыл бұрын
Problem if they are variant for ISO IZOD 180, test can make with Edgewise or Flatwise, notched or not, and different size of notched, many constructor no indicate the precise Test, soo, all have different result, and some try to cheat you with big value in J/m.... xD
@spyrit355 ай бұрын
Aren't colorants basically impurities? Wouldn't the clear filament likely have an advantage due to the extra emphasis on eliminating impurities overall (for better clarity)? Either way, that PCTG underperformed, either because it's overrated or that manufacturer isn't very good at PCTG.
@Peter_Cetera3 ай бұрын
For me, PCTG is much more easier to print than PETG. I prefer PCTG.
@marklandsaat36962 жыл бұрын
Interesting video, but disappointing result for PCTG. Glad I know, I won’t have to try it.
@jirvin45052 жыл бұрын
Thanks
@MyTechFun2 жыл бұрын
Thank You Jeffrey! I am glad that you liked the video.
@FreeDubConnection3 күн бұрын
I am shocked by the results of the izod test. The technical notation is that Petg 5 kj/M2 a pctg 92kj/m2, Am I misunderstanding something, that your izod test results came out very similar?
@FreeDubConnection3 күн бұрын
For example, in CNC kitchen tests, PETG was below 5 and PCTG was below 25. What is wrong?
@MyTechFun3 күн бұрын
Technical notations are usualy for Charpy test. But, yes, in this case those 92 kJ/m2 sounds too much, even for Charpy.
@tonyhill83002 жыл бұрын
so not worth the extra expense
@NvrchFotia2 жыл бұрын
Polymaker polymax PETG is PCTG as well
@MyTechFun2 жыл бұрын
The goal was similar: more impact strength.
@uhu46772 жыл бұрын
PETG and PCTG is (basically) the same material. Check "Essentium Materials Guide: PCTG - Part 2". They explain, that when you start modifying PET with CHDM, it becomes PETG ... and if you add even more, it becomes PCTG. They make the distinction at 50%. But I doubt there's an absolute border. Who knows ... there might be PETG out there, which has actually more CHDM than the PCTG of Fiberlogy.
@NvrchFotia2 жыл бұрын
@@uhu4677 It needs a higher print temp and polymaker lists a petg print temp
@riba22334 ай бұрын
it really isn't
@NathanCroucher2 жыл бұрын
PETG wins
@peterkrause1933 ай бұрын
Your printing temperature is to low. Pctg musst Print with high temperature and 10 % blower. Your test is Bad.
@csupakabra410 ай бұрын
I really like your reviews but your accent and grammar is so painful. I think you should work on that to take this channel to the next level.
@MyTechFun10 ай бұрын
But it is Hunglish, you should understand. If not, you can always follow my Hungarian channel ;-) www.youtube.com/@3dnyomtatas
@Smackdabinu2 жыл бұрын
Thank you very much for your thorough, comprehensive, informative video. It’s amazing to see how dedicated you are to science of 3-D printing. You must team up with Stefan from CNC kitchen.
@viralvideo37392 жыл бұрын
He is much better than stefan. More honest and straightforward . Stefan uses science in a germanic way.
@ultra_busy Жыл бұрын
@@viralvideo3739Emoji's cannot express how I was laughing 🤣😂😆Thank you.
@workingTchr Жыл бұрын
@@viralvideo3739 What is the "Germanic way"? I'm curious as I've never heard that before.