Qidi PET-GF vs PET-CF, two great technical filaments by Qidi Tech

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  • Опубликовано: 24 янв 2025

Комментарии • 111

  • @Liberty4Ever
    @Liberty4Ever 14 дней назад +8

    I like that Qidi specifies 15% carbon fiber and 15% glass fiber, right on the box. Most filament manufacturers don't specify the fiber content of their reinforced filaments and micrographs indicate that many of them have almost a token amount of very short fibers which probably don't provide much benefit beyond a nicer looking surface finish.
    70 euros per kg seems expensive. In the US, I bought a kg of Tinmorry PETG-CF for $27 last week (thanks to a My Tech Fun video) and a kg of Siraya Tech PET-CF a month ago for $37.49.
    The heat resistance of the annealed fiber reinforced PET parts is very impressive.
    This channel is by far the best 3D printing material testing channel on RUclips. Thank you!

    • @riba2233
      @riba2233 14 дней назад +3

      I got 10 rolls of even better eryone PETG-CF for 15e per kg with vat included lol, incredible price. I now want PET-CF to drop to at least 30 haha

    • @Liberty4Ever
      @Liberty4Ever 14 дней назад

      @@riba2233 - That's a great price for PETG-CF! I'm just getting started with it, and may be using it for upcoming products, possibly with annealing for added high temperature performance. I just bought ten 1 kg spools of black PLA directly from Elegoo for US$95 with free shipping and no VAT 'cause 'Murica! I wish we could get 3 kg spools without paying more per kg.

    • @MiChAeLoKGB
      @MiChAeLoKGB 13 дней назад +1

      > 70 euros per kg seems expensive
      Don't forget that also includes ~20% VAT (some countries have even higher VAT, e.g. 23%), so price without VAT is about 58 EUR
      Another thing QIDI does is their bulk discounts, so if you get 3 or more, it's 55.99 EUR per roll (about 46 EUR without VAT), which is pretty ok, but I agree that it sucks if you just want to try one roll.
      I got few rolls during sale few months ago and one cost me about 50 EUR.

    • @Elliot00000
      @Elliot00000 13 дней назад

      @@riba2233 Where did you find that

    • @riba2233
      @riba2233 13 дней назад

      @@Elliot00000 their site

  • @guantanamobae530
    @guantanamobae530 15 дней назад +17

    Great testing as always! The PET-GF layer adhesion is impressive. I'll have to give it a try in some projects that I've been using Siraya PET-CF for.

    • @BelowAboveAverage
      @BelowAboveAverage 14 дней назад

      I've been using Atomic's carbon fiber PETG for a few years (19 1KG spools so far) and the layer adhesion is absolute fantastic. Worth a go if you're looking for something else to try.

  • @Timothy_Smith
    @Timothy_Smith 15 дней назад +8

    Thank you for this testing. That annealing process makes such a large temperature tolerance change. That is quite impressive.

  • @migueldias1873
    @migueldias1873 15 дней назад +5

    Lots of promising materials for future testing, what a time!

  • @Munichation
    @Munichation 15 дней назад +6

    Very good Video. Straight to the facts no blablabla. Great.

  • @802Garage
    @802Garage 14 дней назад +7

    PET-CF is like the new super material great all around. PET-GF looks good too. Qidi tends to only source very high quality filament. Annealing definitely has huge benefits!

    • @Liberty4Ever
      @Liberty4Ever 14 дней назад +2

      My Tech Fun is costing me money. I watch one of these videos and then I buy another kg of filament.
      We're starting to get some very good materials for FDM, and the PET-CF and PETG-CF prices have been falling and now don't cost much more than the material without carbon fiber.

    • @802Garage
      @802Garage 14 дней назад +1

      @Liberty4Ever I actually made a PET-CF data sheet comparison document, but I doubt I can share a link here hahaha. Qidi's is very good stuff though.

    • @Liberty4Ever
      @Liberty4Ever 14 дней назад

      @@802Garage - The difference in the cost of filament is minor in the cost of a product, and sometimes, less of a more expensive material can be used for the same strength and lower weight, which is a significant quality in some high performance products. I'm just now getting into PET-CF and PETG-CF. Our products have all been TPU for the last few years but I should be wrapping up the development of some products this winter that need material properties similar to PET-CF.

  • @koenvanduffel2084
    @koenvanduffel2084 15 дней назад +4

    The PET-GF is especially impressive with its layer adhesion. It outperforms or equals PPA-CF in nearly all tests (except the tensile strength and hook test if I am correct). Taking its price into account this looks like the best technical filament today.
    As you mention the impact strength is its only weakness but that is largely inherent: stiffness and impact resistance are very hard to marry.

    • @mjodr
      @mjodr 7 дней назад

      Yes, I have noticed after years of crawling datasheets and watching test videos like this, that you can pretty much say there is an inverse relationship between stiffness and impact resistance. I mean, if you think about the basic physics of it, it makes sense. Think about TPU. I like to search for a sweet spot where the stiffness is enough for the project, but the impact resistance is also high enough to survive the use case. For me, ASA has delivered that for a long time. I am super curious about trying PET or PET-GF now, though. I previously had my eye on PC, but these tests make PC not look like such an upgrade from ASA. I think for a long time PET was waiting in the shadows while everyone was playing with amateur-level PETG, and probably search results were poisoned by trying to auto-correct PET searches to PETG.

  • @TheSuperbbr
    @TheSuperbbr 14 дней назад +2

    Everytime perfect video. Probably the best chanel to have precise technical information on 3d printing technology.
    I'm an engineer and I know perfectly the amount of work it is to have such results.
    Thanks a lot

  • @Loner0sir
    @Loner0sir 13 дней назад +1

    thanks for the test. I was debating this exact filaments set and now I can get informed decisions

  • @MrJofArnold
    @MrJofArnold 15 дней назад +6

    PET and PET-CF are the only materials I've printed with the last 2.5 years and I don't plan to change that. Very printable, amazing properties, room temperature, doesn't stink. The only downsides are they are hard to paint and quite brittle. I hope these videos get more traction as pure PET is hard to find and can be insanely expensive in filament form despite being one of the most abundant plastics around

    • @riba2233
      @riba2233 15 дней назад +2

      Do you have a source of a better priced one?

    • @MrJofArnold
      @MrJofArnold 15 дней назад +1

      ​@@riba2233 Pure PET? Sadly not. Back in the day Amazon had their own brand which was super cheap and I have a few spools. Today you only have BASF selling it in Europe and it's quite expensive unless you buy it in 8kg spools (which is what I do). For PET-CF there's a lot of choice. The Qidi and Bambu stuff (which as of last year was almost certainly the same thing) are perfectly fine. The engineering-grade amorphous PET-CFs like the BASF ones are very expensive and I tend to only use them if I can get on offer and have particular projects in mind.

    • @riba2233
      @riba2233 14 дней назад

      @@MrJofArnold yeah I was thinking about pure PET, one would expect wide choice considering how cheap base material is.

    • @MrJofArnold
      @MrJofArnold 14 дней назад

      @@riba2233 Yeah, it's wild. Way way back it used to be super popular but now I'm the only one in various 3DP communities I've seen using it despite endlessly advocating with my beautiful shiny prints 😆. For applications that don't require high strength or high temp, it's better in my opinion than every other filament in every way. It's especially weird people DO use PETG - which is a real pain due to how it drips - instead of PET. The stuff is even locally recyclable!
      I really hope it takes off again as I'd love to be able to source it at low prices. Would change the hobby for me.

  • @PoseidonMade
    @PoseidonMade 15 дней назад +2

    Thank you so much Igor!! I just picked these up and got them in yesterday! These plus Qidi S-White make for an amazing combo in a multi material system for difficult to print objects that require supports. Thank you so much for the technical data and experimentation!!

  • @lorenzoancilli1340
    @lorenzoancilli1340 15 дней назад +1

    Great video as usual. This is becoming one of my favourite channel: a must goto reference.
    I'll support you on Patreon as soon as I can. Thank you

  • @FrozenByFire3
    @FrozenByFire3 15 дней назад +4

    Hell yes, finally the qidi materials are being tested. They are INCREDIBLE. I cant wait for the nylon testing. I gave the Ultra PA a try and holy crap..... Layer adhesion is insane. I get perfect isotropic parts at 0% cooling and 280C nozzle, however overhangs arent gonna happen with that to well. 10-15% cooling still keeps a good amount of layer adhesion while making print quality significantly better

    • @MyTechFun
      @MyTechFun  15 дней назад +4

      Oh, looks like I have to go to shopping again (Ultra PA)

    • @FrozenByFire3
      @FrozenByFire3 15 дней назад +1

      @MyTechFun if I could send pictures I would! The only time I've gotten this layer adhesion was with Poly maker CoPA and 3dxtech 6-66 copolymer. This stuff is a bit easier to print and doesn't have the moisture issues of those! Crazy material I must say, however fine tuning flow parameters is a must! Ever so slight overextrustion to get that 100% dense plastic might be needed (say perfect flow is 0.96, set to 0.965 instead)

    • @MyTechFun
      @MyTechFun  15 дней назад

      @@FrozenByFire3 Try posting pictures here: facebook.com/mytechfun.igor/

    • @mjodr
      @mjodr 7 дней назад

      "Perfect" isotropic? On FDM? You'll have to inform the FEA simulation nerds that make all the simulation software to make an exception, lol. Scratch that, nTop already allows me to specify isotropic, or custom levels of anisotropic or orthotropic. I just find it hard to believe with layers, even annealed. Even if only 5% less strength in the Z direction I would love to plug that into nTop and give it a whirl.

    • @FrozenByFire3
      @FrozenByFire3 6 дней назад +1

      @@mjodr yes. It's crazy to hear, but if layer times are lower enough and you print hot, breaks along the Z axis do not show any of breaking along the layers. Sure it may not be 100% the exact same tensile and elongation, but it's damn near close. Only a select few materials can achieve this. You should watch CNC kitchens video of Transparent Prints are Clearly Stronger. He show it quite well. And you can go even further than that with very specific nylons.

  • @KToMmi
    @KToMmi 15 дней назад +3

    Great results once again! I am absolutely loving the recent development in materials for FDM printing.

    • @MyTechFun
      @MyTechFun  15 дней назад

      Yes, thanks to development of 3D printers too. Remember, 2 years ago it was luxory to print on max 260°C

    • @KToMmi
      @KToMmi 14 дней назад

      @@MyTechFun I will still wait for the test of all PET-CF filaments on the A1 without enclosure if you want to quantify the difference in layer adhesion 😁

  • @theoverlord3839
    @theoverlord3839 14 дней назад

    Im really liking the video layouts! Keep up the good work!

  • @mjodr
    @mjodr 7 дней назад

    Wow, the annealing tests blew me away.

  • @FuIImatiK
    @FuIImatiK 13 дней назад +2

    thanks for testing. perhaps add in other brands / same type filament results for comparisons on the end.

  • @steveveritas8399
    @steveveritas8399 14 дней назад

    Never tried it, but now i will!

  • @grott3n0lm
    @grott3n0lm 15 дней назад +3

    Thanks again for your thorough research!
    Since i decided to get a Plus4 i wondered about the Qidi PET CF. But after i saw the mediocre performance of Bambus PET CF in the temperature test, i wasn't shure what to expect.
    No i have the data.
    I'm again very sursprised of the different performance from the same type of filaments just from other brands!
    I wanted to get PET CF from Siraya, after i saw your Video about it. Now i'm not that unhappy any more, that i didn't buy it in time and couldn't get it before it was sold out.
    Now i now exactly, if i needed temp resistance i would choose Siraya. For strength, especially layer adhesion, Qidi.

    • @riba2233
      @riba2233 15 дней назад

      Bambu petcf temp is not mediocre, you just need to anneal it like other petcf filaments.

    • @grott3n0lm
      @grott3n0lm 15 дней назад +1

      @@riba2233 Annealing an a regular basis is imo not worth the hassle and potential loss of the shape. If you have bigger parts this can easily happen afaik. For functional parts this is imo not a real option.
      I would just use Sirayas PET CF...

    • @riba2233
      @riba2233 15 дней назад

      @@grott3n0lm it is an option very much, they don't deform after annealing like pla for eg. There is no warranty that sirayas petcf has that temp resistance without annealing so you can't count on it.

    • @grott3n0lm
      @grott3n0lm 15 дней назад

      @@riba2233 Afaik it had it without annealing in Igors testing... Maybe i will try it sometime.

    • @riba2233
      @riba2233 15 дней назад +3

      @@grott3n0lm yes but it's still PET with its properties, sometimes it can anneal itself during printing but you can't know it and count on it.

  • @phlebas-uq6fv
    @phlebas-uq6fv 14 дней назад

    Thank you for taking a few min at the end to draw some conclusions - that was the one thing missing from your previous videos at times.

  • @debrasam5525
    @debrasam5525 15 дней назад +2

    Very good testing video. This helps answer my quedtion from last weeks video on GF v CF. I think I will have to purchase this.

  • @migueldias1873
    @migueldias1873 15 дней назад +10

    Did this filament just get the greatest layer adhesion strength that we have ever gotten in this test?

    • @lureup9973
      @lureup9973 15 дней назад +1

      My question as well

    • @riba2233
      @riba2233 15 дней назад

      Polymide copa might be a bit better, I have to check

    • @MrJofArnold
      @MrJofArnold 15 дней назад +1

      Pure PET is insane. I don't think anything I've printed in it has ever broken along the layer lines. PET-CF similar.

    • @mjodr
      @mjodr 7 дней назад +1

      I suspect TPU would be one of the few to beat it.

    • @riba2233
      @riba2233 7 дней назад

      @@mjodr no, it only has good relative layer adhesion, not absolute in value like this one

  • @monkeywrench1951
    @monkeywrench1951 11 дней назад +1

    eSun has a pure PET in amazon. One of the only reviews says it is softer than PETG. I always thought the G was for glycol and it was used to make it less brittle. It’d be nice to get your view here, and perhaps a test at sometime.

    • @MyTechFun
      @MyTechFun  11 дней назад

      When it will be available in EU store, I will order a spool for the testing. Maybe two (natural and black) esun3dstoreeu.com/products/pet

  • @warmesuppe
    @warmesuppe 15 дней назад

    Your channel is imho the most informative for Filament-tests!
    I have pet cf from materials4print, and it only held up to about 80°C in the oven, which was disappointing, but I will try to anneal it soon.

    • @MyTechFun
      @MyTechFun  15 дней назад +2

      Thank you, pity, that YT algorithm don't share your oppinion. About PET-CF, I am sure, that after annealing it will be much better in temperature test.

  • @J11P338E
    @J11P338E 12 дней назад +1

    Thank you very much about the research.

  • @gaveintothedarkness
    @gaveintothedarkness 15 дней назад +1

    outstanding testing methodology!

  • @LonnieHeadley
    @LonnieHeadley 14 дней назад +1

    Not QIDI, but I bought some Tinmorry PET-GF, and I also had really good luck. It is very dense and heavy and impressively strong. My only gripe is that it does have a smell to it when printing.

  • @Deathstroke069
    @Deathstroke069 14 дней назад

    Thank you habibi - love your content

  • @scorpioo4320
    @scorpioo4320 14 дней назад

    I should start testing too as I have a bit 😊overweight too haha.. Thanks for this vid 👍

  • @runklestiltskin_2407
    @runklestiltskin_2407 14 дней назад

    Insane materials

  • @ljubomirculibrk4097
    @ljubomirculibrk4097 15 дней назад +1

    Agree, its impressive. If price was a bit lower it whoud be a first choice for most uses. PA-CF has just beter toughness compared to PET-CF/GF, problem it has is water expansion, precision parts can be a bit problematic.

  • @The_Dutch_Pancake
    @The_Dutch_Pancake 15 дней назад

    Great, thank you for this review.👍
    At this moment I am nearly ready to order a QIDI Plus 4. Because the ease of post processing I like to use QIDI ABS and ABS-GF and for tech parts I consider QIDI PET-CF or something or some brand else.
    But now I am sure, it will be PET-CF. Only thing I would like to check if there is a significant difference between brands.

    • @MyTechFun
      @MyTechFun  15 дней назад +4

      I will have Polymaker PET too, then all 4 brands in one video (Bambu, Siraya, Qidi and Polymaker)

    • @The_Dutch_Pancake
      @The_Dutch_Pancake 15 дней назад

      @@MyTechFun Thank you, I quickly re-watched your review on the Bambu Pet-CF, most significant for me is the higher layer adhesion of the Qidi filament.
      I still have some weeks before I order, so I will wait till your video comes online.
      But so far I guess the Qidi PET-CF might be a good choice, there prices are reasonable and there products are always available.

  • @KimHarderFog
    @KimHarderFog 15 дней назад +1

    Crazy temperature resistance after annealing

  • @baderalafghani4564
    @baderalafghani4564 15 дней назад +1

    This filament is made by fusrock . Amazing video 👌🏻👌🏻👌🏻

  • @chatroux399
    @chatroux399 15 дней назад

    Really impressive!
    I hope you bought a spool of PPA from qidi, this filament looks really interesting as well.

    • @MyTechFun
      @MyTechFun  15 дней назад +3

      PPA and PPS yes. In the meantime, I got the suggestion for Ultra PA

    • @chatroux399
      @chatroux399 15 дней назад

      Fantastic!

  • @davidconner-shover51
    @davidconner-shover51 14 дней назад

    Have you tried the new Tullomer stuff lately? was considering

  • @joerogers1364
    @joerogers1364 14 дней назад

    I want to use this PET-CF to make a print in place expanding sword for my kids that doesn’t break in 2 minutes. Would this be a good candidate?

  • @50an6xy06r6n
    @50an6xy06r6n 14 дней назад

    Curious how annealing affects layer adhesion as well

    • @riba2233
      @riba2233 13 дней назад

      watch bambu pet-cf test

  • @tinkeringpoko
    @tinkeringpoko 15 дней назад

    Beyond 230C🤯

  • @Monkeyspass
    @Monkeyspass 12 дней назад

    Anecdotally I am using Fiberon/polymaker pet cf and getting pretty poor layer adhesion, so these results are interesting.

    • @natereinhold6180
      @natereinhold6180 12 дней назад

      I've recently started printing in this. My biggest issue is i have way too much cooling @ the lowest fan speed that my fans will kick on, which is 20%. Dual 5015s are excessive with room temps of 9c. Turn off cooling, and it's much better. I printed a hollow, honey comb styled grip that's has about 1.5mm thick webbing. It easily holds my 170lbs/77kg jumping/stomping on it.

  • @IvandelMuntSoler
    @IvandelMuntSoler 14 дней назад

    You dont need the weight, just a use a screw and an electric drilln (or a nema motor connected to an arduino), you'll have more control over your tests.

  • @SebastienChedalBornu
    @SebastienChedalBornu 15 дней назад

    for me the nozzle on the website is meant to use hardenedd stell and not brass one

  • @jasonh4534
    @jasonh4534 15 дней назад +1

    Still no Siraya Tech PPA?! You are just messing with me now! 😄
    I did some limited impromptu informal testing on the PPA recently.
    I have a part that is about 12-15mm wide 5mm thick and 60mm long. All the edges on one side has a fillet to smooth the transition so it isnt 5mm thick the whole width. There is a 5mm hole near one end of the part.
    I found a way to secure the part and hung a gallon jug full of water from the hole. There was minor deflection, and it didn't change over the course of a couple weeks. Afterwards when the weight was removed, the part went back to normal.
    Layer adhesion seems very good, as the parts does not break cleanly along layer lines. It cracks similar to molded plastic. It is still partially along the layer lines, but it deviates in a more jagged fasion. So it is still a weaker axis, just not as much as some other materials.
    So nothing rigorous, but I was impressed by it. Hopefully after you finish testing, I will have some numbers to associate with the material.

    • @MyTechFun
      @MyTechFun  15 дней назад +2

      Siraya PPA is here (all 3 types), but I have at least 4 filaments between (including Tullomer)

    • @jasonh4534
      @jasonh4534 15 дней назад +1

      @MyTechFun I am interested in the tullomer as well.
      I am also starting the process to build a new printer that can handle PEEK and Ultem.

  • @antonkukoba3378
    @antonkukoba3378 15 дней назад

    I wonder what numbers would be if you machined the pure carbon fiber composite and performed these tests.

    • @MyTechFun
      @MyTechFun  15 дней назад

      Then check this video: ruclips.net/video/8vHjrHDZdYg/видео.htmlsi=9J50A6jGBXa9lv1O

  • @abc121xyz
    @abc121xyz 15 дней назад

    Can you comment on the safety aspect? I have the CF one and I get a lot of micro splinters stuck in my hands that wont go for days, have you done any research on that?, long term usage that imply wear will also expose the splinters?

    • @riba2233
      @riba2233 15 дней назад

      non-issue health wise.

  • @sinansahin6423
    @sinansahin6423 9 дней назад

    Hello I love your content, can you please test Extrudr filament, They have a quite interesting Greentech/greentech pro collection wich promises high temperature resistancy while being a non warping and low temps printing filament (160C° heat resistand promised for 210-230C° printing temp) Have you already experienced filament from that brand ?

  • @1x1johnny
    @1x1johnny 14 дней назад

    I really enjoy your videos! A also started now with testing some non standard materials like ASA and PETG-CF. What is your opinion about the potential health issues around GF or CF, that they stuck to your skin, or that you inhale parts of it?

    • @riba2233
      @riba2233 14 дней назад

      non issue. don't inhale it obviously.

  • @IIXPARADOXII
    @IIXPARADOXII 15 дней назад

    Guys! Are there any cheap ovens for this annealing? Maybe anybody can tell which model are you using?

    • @IIXPARADOXII
      @IIXPARADOXII 15 дней назад

      And additionally would be great to test the lowest time needed for annealing to reach 200C resistance.

    • @MyTechFun
      @MyTechFun  15 дней назад +3

      Soon I will test Sunlu's new dryer, which can be used for annealing too (max 110°C)

    • @IIXPARADOXII
      @IIXPARADOXII 15 дней назад

      @@MyTechFun Nice, then if you can, please, test less annealing times to find the optimal one as the time is money. :) I am printing on X1C too, but Raise3D PET CF/GF and have amazing quality prints, but low HDT of it is like Achilles' heel. By the way I recommend you to think of trying some Raise3D materials, at least PET CF/GF had very good parameters and I think they were maybe the first who came with this material into the market. Thanks for your efforts, you are da man. =)

  • @weozol4065
    @weozol4065 2 дня назад

    Don't buy no filament in bulk, at this rate of innovation, next year something much better come along

  • @mark6302
    @mark6302 15 дней назад

    I love exotic filaments but I do not have the means to use them.

  • @huntliba
    @huntliba 15 дней назад

    6:43 We have a saying "Pikkus pole mõistus ja jämmus pole ramm" which roughly translates "Height is no intelligence and weight is no strength" :D

  • @baderalafghani4564
    @baderalafghani4564 15 дней назад +1

    This filament is made by fusrock

  • @jasonreed2190
    @jasonreed2190 15 дней назад +4

    @mytechfun I’d love a pet CF shootout to find which is the best available right now