LAYER ADHESION TESTED: Bambu Stock vs TZ 3.0 vs E3D HF ObXidian hotends (220C vs 240C)

[@dansaville3333]

I'm glad there is a channel doing actual testing and willing to show results from competing products, even including the cheap knock-offs.

[@PrintingPerspective]

Thank you. I do that because I love testing and want to know myself. It is always nice to find the true performance of the products based on proper testing data. :)

[@Eduard_Kolesnikov]

totally agree and love it too

[@АлександрЕфименко-щ9р]

Уважаемый и в итоге какой всё-таки производитель лучше то что слева то что посередине или то что справа..???​@@PrintingPerspective

[@josejimenez896]

Hey! Don't forget to anneal your PET-CF filament. As a semi-crystalline material, as printed it will be quite amorphous. If you want the insane stiffness noted in the TDS sheet, annealing is a REQUIREMENT. It's also fairly easy to do

[@PrintingPerspective]

I never looked into the annealing process, but thanks for the info I read up more about it. I looked up what Ultimaker writes about it and it says it gives "a stiffness increase of 10%". I checked the Bambu PET-CF TDS and yes their samples were annealed. I love comments like yours as they help me learn very quickly about important things in my busy schedule, thank you so much. :)

[@matthiwi6901]

what is the best annealing method in your eyes?

[@josejimenez896]

@@PrintingPerspective of course! For bambu its actually fairly simple. Basically, start at 80C hold for a bit depending on part size, and slowly increase in 10C increments every half hour till you get up to 120C. Hold for a bit. Slowly cool down. For everything else pet-cf from other brands. Chuck it in the over at 140C and send it

[@josejimenez896]

@@matthiwi6901 which brand Bambu: ramp up to 120c slowly. Everyone else: chuck it in at 140c and hold for a few hours. If you have thin walls, use sand or salt as support

[@matthiwi6901]

@@josejimenez896 i use eryone filament. does normal PETG Profit from this as well? 140 seems really Low but I will give it a try

[@DerekNheiley]

would love to see follow up video with two additional things; 1) add increasing layer pauses to test your theory of the previous layer being hotter because of faster flow / printing contributing to better adhesion 2) test 0.6 nozzle, and another filament such as PETG, PETG-CF and ASA :)

[@suivzmoi]

i think at the end of the day layer adhesion comes down to the a) true temperature of the filament when exiting the nozzle and also the b) temperature of the existing layer below. we cannot really measure a), but only the temperature of the block and all these tests we do assume it is equal to thermistor temperature even though we know it is not. that means we have hidden variables like 1)block material, 2)thermistor distance through the block to the heater element, 3)distance to the nozzle, 4) nozzle properties, 5)PID reaction time and maybe other things i can't think of at the moment that account for filament being printed at a lower temperature than requested. i strongly agree with you that better nozzle properties and longer melt zone length is the best move since it appears to be able to wash out all the other variables preventing any of them from becoming bottlenecks. when comparing hotends we cannot really change 1,2,&3 and can treat it as one black box variable and call it the performance of the hotend but perhaps we can stick to the same type of nozzle at least when doing testing so we can eliminate 4) when comparing hotends. i'm looking at 6:57 and wondering why Obxidian adhesion loss saturates at -30% while Bambu is actually accelerating to -70%. i am not satisfied that we cannot separate the nozzle variable from the hotend variables in order to explain this phenomenon. i suspect you feel the same way... i have a thought. i know from your past video(s) that very poor performance can be recovered by increasing the hotend temp. i think if you can measure 4'C difference inside the block itself (6:16) at high flow then the nozzle temp delta will be even higher and (a) will be yet even lower, maybe 10-20C lower with hardened steel nozzle at high flow. to me that is a clear indication that that Bambu's poor performance at 6:57 is suggesting that (a) is too low and potentially near the limit for this particular filament. i think that filaments have this hidden property that needs more investigation: what is the actual temperature required out of the nozzle for a particular filament to suddenly lose adhesion strength, call it "x"? we know from CNC kitchen in a 3yo video that his PLA achieved max layer adhesion at around 230C requested temperature with also pretty ok strength from as low as 200C, but huge loss at 190C, indicating that x exists. it is my guess that your purple PLA has an "x" quite close to the requested 220'C, maybe 200C. so if a hotend-nozzle combo that loses 20C out the nozzle produce strange graphs like accelerating loss of layer strength( 6:57) while a better combination will see layer strength loss saturate to a fixed loss like -30%. the numbers are just a guess of course, my point is your purple PLA maybe needs a slightly higher temperature to behave optimally, combined with the fact that bambu HS is not so good with the requested vs actual temp at high flow. as for b), the temperature of the existing layer below it can be controlled by ensuring the part fan is turned off and the model should ideally have smoothly increasing layer lengths in proportion to the increasing flow rate. this is to ensure consistent layer times at all levels. but i think this variable is not large in comparison to what happens to a) during high flow.

[@xilw3r]

bond strength depends on the new and previous layer temp, but also time. As in, how long the junction itself spends at above glass transition. The relationship is non-linear and also depends on things like strain in the plastic, of which there is plenty in FDM. Its a deep af science this polymer stuff. Half educated guesses, half statistics, half geniuses with their insight coming up with models to predict things.

[@coreyward]

Wow, super impressive. I didn't even know E3D was making Bambu-specific hotends. Ordered one after watching this video!

[@mosth8ed]

Yeah, I am about to order one right now as well. These kinds of videos are exactly the kind of thing I have been looking for.

[@JoshFisher567]

There is also a REVO version but it's super expensive and seems geared more to quick nozzle changes. I own the OnXidian and outside the higher flow rate, prints are slightly cleaner and the non stick diamond coating actually works on PETG so the price really is justified. The best thing is all you have to do is change the volumetric flow rate for faster prints. Obviously there are other settings to increase speed but that one setting alone results in faster prints.

[@MrBiggs-wu2kf]

How are you liking it?

[@mosth8ed]

@@MrBiggs-wu2kf It's made a huge difference, I have noticed. Especially when printing with 0.12 layer height. The prints are strong as hell (when using PLA+)

[@coreyward]

@@MrBiggs-wu2kf I haven’t really tested the strength claims, but I have been able to print PETG at 30 cubic mm per second in tests very successfully, and I’ve gone up to around 24mm3/s in actual prints and they seem strong. That’s with cheap Overture PETG. For PLA I’m usually not pushing speed limits because I’m printing production parts that need to be reasonably strong with good cosmetics without post processing. I was happy enough with the first that I got a second for my other X1C.

[@abitnutz6747]

I run the E3D ObXidian on my Bambu but I run the TZ 3.0 hotend on my TwoTrees SK1 and it performs really well.

[@Pacsuper7]

Your pragmatic engineering approach to the problem is truly inspiring. Thank you for sharing.

[@powersv2]

Proud of e3d innovating in the face of bambulab and sanjay’s absence.

[@gabriel4227495]

Nice Video, i use the E3D Hotend for 6 Months or so. The first thing i did, was a flow test, with the old and the new Hotend. Becaus i´m looking for stability, i always break pices out from the flow test to find out how slow i have to go until the pices dont break a long the layer lines. Stock was around 150mm/s and the E3D was just bending at 500mm/s. Thank you that i can finaly see this in numbers.

[@hjaltesrensen8214]

I really feel like this channel needs to be bigger, the amount of misinformation about printing benchmarks this guy disprooves is amazing, and as always with the numbers to back it up. Great video keep up the good work :D

[@xCopyCatz]

Great test, I was using the knock off cht hardensteel nozzle and was wondering why is my prints getting poor layer adhesions

[@PrintingPerspective]

Yeah, this was the biggest disappointed of this testing marathon. :/

[@smokehead5318]

@@PrintingPerspectiveis it enough to buy just decent cht clone nozzle for tz3 to improve that result?

[@sirseriously]

Same, I switched back to Bambu hot ends because the cht was giving me extrusion issues.

[@Max-lk2ro]

I also tried a knock off and went back to the stock 0.4 HT after a few issues.

[@Vez3D]

Good video man once again. Thanks for sharing your finding.

[@PrintingPerspective]

Thanks :)

Wow. Thank you for this. This was actually shocking for me and very insightful! I was shocked by how much layer adhesion drops in the stock hotend with flow rates above 10mm3/s... Given that I print, mostly, mechanical parts, I'll definitely make some changes after this video. Thank you for this

I'd love to see more of these filament/settings/hardware comparison videos, since you seem to have quite a nice setup to measure these kind of forces!

[@PrintingPerspective]

It also depend a lot on the filament and even a color of it and the print itself. If you printing something small with a lot of details you won't have any problems but when you start printing bigger practical prints where you spend extruding a lot and not slowing down or traveling much, then the adhesion suffers.

[@HackCausality]

To me it emphasized how important it is to actually pay attention to temperature. If you need a big strong part, go ahead and run PLA at 240. It won't be the end of the world.

[@AdiDobre90]

Thanks for this! I had the same results, althouh I did not have the numbers to show exactly what happens, this is my experience: - cht clones with hardened steel nozzle printed parts felt significantly weaker than stock hotend, so I stopped using it - cht clones with brass nozzle printed parts seemed fine, a bit better than the stock bambu hotend, I still use it for my Prusa mini - e3d's hotend printer parts seemd significantly stronger, I love it. I should note that I did not increase printing speeds on X1C, I use the standard Bambu profiles speed.

[@Mark4star1]

Normally I hate advertising in videos but always happy to see the services offered by PCBway. Just a pity they are not here in Australia although I know some of the guys here get parts etc from them.

[@timp2433]

I am sorry, I couldn't understand what the final decision was. Can someone explain?

[@youtubevanced4900]

I think it was, if you want improved layer adhesion, but the e3d hotend. Don’t bother with the knock off thing.

[@M.J.C.W.]

I just picked up one of the 0.4 E3D hotends for the X1C and it is wild how much faster you can push the prints. On most of the filaments, it moved it from 13 to 25 mm³/s per second. Honestly, I'm sure I could tune it to be even faster, but this is such a reduction in time that it doesn't even bug me right now. I did notice that the flow is so good that it ends up with extra stringers when it goes to purge filament. so you have to keep closer eye on it so it doesn't clog. I'm sure this could be mitigated with more retraction, but I just haven't tuned it like I said I just got it. I also have used the AliExpress CHT aftermarket nozzles and I wasn't impressed. I ended up going back to the stock bambu lab ones. might actually be a case where the more expensive 3ED was actually worth it.

[@TranquilityTerrace]

Can you share the link to buy the 0.4 E3D?

[@PrintingPerspective]

Thanks for sharing. If you care a lot about layer adhesion I think it is definitely worth it. :) I printed some Voron parts and my god how strong and shiny they were.

[@fernandotqp]

I was just thinking of buying a TZ 3.0 for a dragon burner... not anymore. It would be great if you could test other hotends and nozzles.

[@romainfichet5352]

as he mentioned tz3.0 with nickel coated nozzle is way stronger because of the better thermal conductivity. if you put a brass nozzle i think it will also be better. dont forget hardened steel isnt that good against copper and brass ;)

[@fernandotqp]

​@@romainfichet5352 Yeah, It does improve quite a bit with the copper plated ones. It's still not as high as the e3d. Would be interesting to see how much these findings translate to other hotend designs (rapido, revo...)

[@StylusEcho18]

THE best video about this E3D hotend on KZbin.

[@username9774]

Thank you for the testing, I was wondering about the performance of the tz 3.0 but didn't find much, thank you. I will propably stick to the dragon clones.

[@doobaloo1326]

I tried the 3.0 and wanted it to work. Tons of tuning and I still couldn’t get consistent results. 2.0 worked much better for me. Both setups had a CHT nozzle.

[@avejst]

Wow, great test! Thanks for sharing your experiences with all of us :-)

[@PrintingPerspective]

Thanks, I love testing stuff so hopefully you like seeing all kinds of results too. :)

[@DaveEtchells]

*GREAT* test! Completely changed my thinking about the E3D HF hotend, thanks for sharing!

[@SynthOSphere]

Amazing technical and scientific work! Very thorough. Thank you!

[@DonnyDonnMendoza]

I’d love to see these type of nozzles available for the A1/A1 mini as it’s easier to change the hot end on these machines. One might not be able to go quite as fast but it’d be great for layer adhesion.

[@PrintingPerspective]

A1 series have a way longer melt zone, I don't think they even need it, unless you print with bigger nozzles.

[@fikuss30]

you need test tz3 with CHT brass nozzle(i got 40mm3 flow test generic PLA but with hardened just 18mm3)

[@himanilsharma2147]

Hi actually I am planning to buy TZ3.0 hotends and Hardened steel CHT nozzles for them... Can you tell how is the actual hotend ..?? Is it good or bad and which kind of nozzles should I use

[@fikuss30]

@himanilsharma2147 use brass cht nozzle for max flow and hardened only for any fiber reinforcement filament or glow in the dark. I just use generic pla with bambu profile so they have higher flow limit and it's cool. Just don't bother with 0.2 nozzle it's bad. For 0.2 use bambu hotend

[@xSilas43]

As you had mentioned briefly, I think most of this comes from the nozzle material, the TZ and Bambu use the hardened steel vs coated e3d, I think the Bambu and TZ would perform similarly with a brass nozzle with cht, as you found the TZ with copper plated CHT performed significantly better vs the standard hardened steel, seems to all come down to thermal conductivity of the nozzle material itself. I believe they use standard v6 threads so maybe popping a v6 cht clone would be a quick and dirty test, would need different fan ducts though.

[@romainfichet5352]

me and my .2/.4/.6/.8/1mm fake cht hardened nozzle crying together

[@xSilas43]

@@romainfichet5352 I mean they're still good for wear resistance, you can also just turn up the heat to some degree to compensate.

[@haysoos123]

I agree, it’s been known for a while that hardened steel just isn’t that good with its poor thermal conductivity. It surprised me back then to learn that Bambu labs came with them by default.

[@Mikepet]

The Problem of a Nozzle that splits the filament in more sections i see, is that it would take WAY MORE Purge Filament to clean it out if you want to change Color.

[@barenekid9695]

As long as there have been 3d printers there have been BULLSHIT 'improved' hotends. Stock Bambu one is actually pretty damned good. Save your $$.

[@Hi-hw8tl]

Have you tested the revo clones? There is now a revo clone with a dragon mounting pattern for 25-40$ on ali

[@3DThird]

Wow! And I was thinking of going TZ 3.0 just a few minutes ago to upgrade my machine. I'll stick to the stock hotend for now.

[@isaakweller5797]

I would be extremely interested in a video measuring the layer strength between a traditional hotend and the Bambu Xobsidian high flow hot end with more specialized materials. The data from this video blew me away. I have the .6mm and I am excited to print stronger parts faster. The print profiles don't seem the best for .6mm though... Thanks for the video.

[@zerrano]

This is what real R&D looks like. Amazing job

[@impetus444]

You are doing the community a great service. Thank you for making these types of videos :)

[@mikimao5516]

Did you try the bambu clone with copper nozzles? Theoretically, the hardened nozzle does not transmit as much heat as the copper one. Maybe the problem of layer adhesion is there in the clone.

[@olafmarzocchi6194]

I was thinking back to this video... QIDI has copper plated with HS tip only. If you recover two clone CHT inserts and you enlarge the hole of the genuine QIDI to slide them in, what would be the result? 1) good outer material conductivity 2) good inner insert conductivity 3) HS tip which is the part under abrasive stress, so no big reduction in useful life.

[@tinkerman1790]

Thanks for putting in the effort to create this awesome, detailed product comparison! 👍🏻

[@gatosardinaful]

You just missed the tz V6 Any chance of testing it in a later video and comparing to these results?

[@mururoa7024]

Interesting results but PLA is useless to me. Care to do the exact same tests with ABS and PETG?

[@BramCohen]

What I really want to know is for multi-material prints which hotend will heat up/cool down the fastest when switching between PETG and PLA?

[@Damjanhd]

I still don't know what is most cost and print efficient here?? To change nozle only?

[@Victor_2019]

Your the next CNC kitchen! Thank you for testing this, love your content keep up the great work! love from Canada

[@PrintingPerspective]

Thanks, glad you enjoy the videos :)

[@FrodeBergetonNilsen]

That sure was different. Kind of raising all sorts of questions about stock print quality, which we hardly ever hear about. Thanks.

[@justtesting555]

Id love to see a comparison using the BIQU Panda Revo high flow hotend.

[@DrZylvon]

Amazing data. Love your channel

[@PrintingPerspective]

Glad you enjoy it! :)

[@linyongzheng]

Would love to see how a chimera TZ1.0 with diamondback or trianglelab zsd compares with the e3d hf ObX in terms of layer adhesion.

[@ozfunghi]

Glad i'm not going crazy. Ordered myself a dozen of clone CHT nozzles. They were on my printers for roughly two minutes, because the first moment i loaded up filament and pushed through by hand, i could already tell they actually blocked the filament rather than melt it. I have no idea how some 3D gurus who tested these, were claiming they worked even better than the original CHT nozzles.

[@Piccyman1]

So if we use the e3d Obxidian we can print @100mm /s without losing layer adhesion, and the BBL stock hotend is really only good for 67mm/s.

[@MrRocksalt]

Curious, if the flow is increased, and the temp as well, print at a speed where the cooling is at 100%, but only if the model is close to fail at that speed with that cooling. So, in other words, print at say 400mms. set the layer time and cooling parameters such that the model is on the cusp of fail from low cooling, then test the adhesion. Would there be a difference?

[@Derpynewb]

is the tz hotends issue the hotend or the nozzle? What happens with a genuine cht?

[@DesignPrototypeTest]

I think you are missing the point of a hardened nozzle. The fact that the nozzle with the copper insert was both (slightly) better performing for layer adhesion AND it can print abrasive filaments is kind of a big deal. Are you going to run Glow in the Dark filament or Carbon Fiber through your expensive E3D hotend? I think you will be quite unhappy with print quality after a couple of hours.

[@pirobot668beta]

Makes you long for the days of Ruby-tipped nozzles...

[@darkmatter7442]

I have the TZ "1.0" and TZ 3.0 both with hardened steel CHT nozzles. I've hoped to get better flow with v3 because of the higher wattage heater. But it didn't make a difference. I still had Nozzle Temperature malfunctions because the Heater couldn't keep the Temperature. I've also used the slice Boronitride paste, but it didn't change a thing. My only problem with the e3d obxidian is that you cannot change Nozzles. I've clogged already two CHT knock offs. If the Obxidian gets clogged, then I've thrown basically €100 down the drain. BTW, thank you for the informative test

[@PrintingPerspective]

Thanks. Well, buying 3 hotends that didn't make improvement to the stock is also basically down the drain. I am in the same boat as I have bought 1x tz 3, 2x tz 2. I would rather have one that actually good. E3D say you can do cold pull and geometry should allow you to do that to unclog it. On clones it is impossible to do because of the design. It would be interesting to know what is E3D policy about clogs that are unfixable.

[@darkmatter7442]

@@PrintingPerspective yes you do have a point. I’ve wasted €60 for clone hotends. If cold pulls are possible I may give e3d a shot.

[@18bagabooo]

I was about to buy a 0.6mm nozzle from bambu in order to speed up big prints, however harsh reality kicked in as even the 0.4mm nozzle, at 0.28mm layer heights for draft prints, already maxes out my flow rate. So 0.6mm wouldn't save that much time if any (some time I guess could be expected by less movements) - checked this video out, and now the 0.6mm e3d is on it's way.

[@lolipipan]

hey, i was thinking about an 0.6 instead of 0.4 also! since you seemed to have one, whats your thoughts on a 0.6 instead of 0.4 ?

[@18bagabooo]

@@lolipipan I can't really feel impact of higher nozzle when it comes to detail - with arachne wall generator turned on there's a video from Tom on it, you basically get same quality as you would do with the 0.4mm nozzle. My smallest prints usually are the gridfinity boxes and base - works perfect for it. any other big prints, the speed for me is the real winner. you can get let's say 30mm3/s with 0.4mm nozzle too, but you start going into 200+mm/s printing speeds, vs 0.6mm nozzle, I am still within the 100-150mm range, so naturally less speeding artifacts.

[@theshiznojudge]

I would be interested to know how well extrusion force correlates to layer adhesion. If it does corollate well, it could make tuning settings a lot easier without having to buy or build a strength tester and test with every filament and hotend combo.

[@PrintingPerspective]

That's a very good idea.

[@hydos0694]

it would be amazing if you can test triangle lab's range of nozzles. i would love to know what works best for adhesion overall

[@muncz]

Amazing methodology and test quality. Never expected that on vox populi tube

[@Liberty4Ever]

I am very impressed by the rigorous science used to determine results that matter. We live in a world where the debasement of science is part of a larger war on the truth so it restores my faith in humanity to see good test design, accurate measurements and an unbiased presentation of the data. Thank you. I subscribed for hopefully more 3D printing science and am working my way through your previous videos.

[@Shadow27374]

Can you test the BIQU Panda Revo Hotend?

[@PrintingPerspective]

I have the hotend, I have different nozzles, I just need to find time to test it. So sooner or later I will.

[@johnslugger]

*I print hotter if I need strength and print at recommended temperature when it needs to look good. I do every thing with a .6mm nozzle these days. Those .4mm nozzles are for beginners!*

[@mikecrane2782]

Really interesting results - well done and thanks for taking the time to do this.

[@suivzmoi]

will you pick up from MirageC and complete the extruder olympics?

[@skilledcamman4752]

I've been waiting for you to review the TZ 3.0

[@rhotix403]

Side Note: A shorter meltzone will lead to a more controlled extrusion. Prints will come out quite more beautiful. Ive tested this with the old Generation of printers at 30mm/s for Walls and 60 mm/s for Infill. Cant say if its the same for high-Speed printers though.

[@woutervossebeld4664]

Can you add some super high flow hotends to the test? Like a super volcano, Goliath, mosquito etc. those hotends might give very good layer adhesion at 50% of their maximum flow rate.

[@olafmarzocchi6194]

It would be interesting for once to fix the hardware and to change the material, since all channels always test PLA. Roughly speaking in % how should I scale for ABS, PETG and maybe another couple of materials? ABS is known to flow better, will it be impacted by speed less?

[@PrintingPerspective]

Testing ABS and PETG is so hard because you can't dump a lot of cooling as that affect layer adhesion. And without cooling test prints don't have time to cool down. Not to mention that for ABS you have to constantly monitor chamber temperature and different brand PETG filaments can heavily impact results. If a hotend can better heat PLA it will also heat better any other material.

[@BayAreaPEV]

I really want to say thank you for doing all the work to do with such extensive testing.I've used the v2.0 and V 3.0 and so far. I like the 3.0, because I've been able to use it to print PETG. At 22 mm per second. Honestly. Caught me off. Guard to strength is that much weaker. I never really noticed it Producing nervously weaker parts. Though now my wallet dislikes you.Because I honestly do you see myself ordering a .6mm .e3d hotend. I do you have a question because I noticed using the .4mm CHT insert hardened steel nozzle would require a great deal more purging. And sometimes even have a small blob from a previous color 5 layers into a new print. Would you recommend e3D nozzle for any multicolored printing?Or is the purge necessary too annoying ? Lastly do you think the e3d is any more susceptible to clogging when printing with carbon fiber filament? Thanks a lot for any info you can give. i'm very interested in getting that upgrade just a little nervous about spending that much but I do like the idea if it doesn't have huge major downsides.

[@PrintingPerspective]

I don't do multi color printing so it is hard to say. But yes you will have to purge more which will provide even more waste. Maybe just increase printing temperature slightly for multicolor. E3D hotend mostly shine for practical prints where layer adhesion is very important. About clogging, I never got a clog using 0.4 nozzle with bambu carbon fiber filaments where they don't say you can't use it. I wish E3D made 0.5mm hotends as 0.6mm one reduce print quality too much.

[@eanbutler4133]

Does this mean the panda revo has even better layer adhesion than E3D?

[@timmontano8792]

I rarely ever print with PETG. I would have like to have seen this same testing done with ABS filament

[@nakleh]

I picked up the ObXidian nozzle for my P1S and began testing last night.. I normally print Bambu PLA basic at 18 mm3/s. With the ObXidian nozzle the max flow rate test hit 40 mm3/s before showing *any* signs of issues! I ran the test at 210c, 220c, and 230c nozzle temps, 210c looked the best out of the 3 to me. How hot is TOO hot for this combo though? Is 240c a reasonable temperature? I normally print at 220 and have not gone over 230. Your chart at 7:24 shows 230c to have the highest tensile strength.

[@DaveEtchells]

Came here from the E3D site. Excellent(!) tests, I love your approach, new subscriber 👍👍👍

[@shenqiangshou]

Ha, so my laziness of not installing my after market cht clone months after receiving it was right on. Yeh laziness FTW! Thank you for this amazingly detailed test! Keep it up!

[@PrintingPerspective]

Haha!

[@olafmarzocchi6194]

The hardened genuine CHT also is using hardened steel insert in a copper shell. I fear it wouldn't score much better than the cheap CHT. I guess I'll have to actually do measurements once I get it. This makes me also think that it may be better to get a volcano CHT and cut 2 mm off it rather than using a QIDI adapter and a V6 genuine CHT. Or simply I'll print abrasives at 10-12 mm³/s

[@PrintingPerspective]

But here is the other way around, copper inside rather than outside shell on CHT.

[@olafmarzocchi6194]

@@PrintingPerspective can you get Bondtech to give you some genuine bimetal CHT?

[@olafmarzocchi6194]

@@PrintingPerspective yea but like you showed, thermal conductivity of metals is at least 20x the one of plastic so it's very likely that the swap of material for inner/outer matters little. For example the obxidian is made of brass, not copper,and beats every other one. I guess the e3d nozzle gets the boost from the shape and amount of surface, not much because of the material. As IMHO direct consequence, swapping copper and HS won't change performance too much between genuine and knock off chat. Tough choice, I'll try to get measurements on the stock before picking a replacement.

[@PrintingPerspective]

I always can ask, it would be another step in figuring out more about layer adhesion. But usually unless companies reach out to smaller creators themselves it is impossible even get any answer lol.

[@olafmarzocchi6194]

@@PrintingPerspective for completeness, I think the obxidian should not compete with the hardened steel nozzles: I found on the website that it's just a coated nozzle. They say it's harder and more resistant to wear, but also that fiber materials will wear it out. So not really the same field as hardened steel which will last a long time, except maybe with glass fibers.

[@eliasmarq007]

Wow an incredible video! amazing work collecting all the data! I wonder how the DiamondBack nozzles would stack up

[@EngineerWilky81]

Very interesting video. I'm still fairly new to the world of 3D printing so videos like these showing what happens at different speeds and temps is helpful when I start getting into fine tuning the print settings. I came across that Slice Engineering is coming out with a Mako hotend for Bambu Lab X and P series printers. Would be interesting to see what the results of using this hotend would be compared to the others in the video.

[@thejedijohn]

Can you explain the light green line on the graph marked "flow"? I didn't understand what that was measuring as opposed to the darker green line since both were marked as representing the stock hot end at 220c. What did I miss?

[@bobwatson1895]

Can someone please explain to me what "Print Speed" setting is being modified? I see so many different speeds in the slicer i.e: Infill, Outer Wall, Inner Wall etc.. How does one speed get extrapolated to these/which one do I change?

[@5doolar]

For the day day , its better the original or the 3.0 with cht ?

[@PrintingPerspective]

I went to the original on a couple of 3D printers, so the original. You just need to print at a higher temp, for PLA probably 230C would be enough.

[@Pappagar]

ill probably keep my 2.0 hotend with the HS nozzle on anyways, but this is good to know. mine is juupine though but probably the same manufacturer

[@PrintingPerspective]

I have bought couple of them from juupine official store and they are good quality.

[@supercurioTube]

I just caught up by watching a bunch of your recent videos, thank you so much for the testing methodology you designed iteratively! Measuring the layer adhesion is the real hotend evaluation approach 🤩

[@PhilippensTube]

Would this also apply to the Panda Revo hotend with ObXidian nozzle? I'm thinking about switching to the Revo system because of the easier nozzle swaps and the better flow capabilities of the ObXidian nozzles. I just wonder if your results would translate directly from the E3D ObXidian hotends to Panda Revo with ObXidian nozzles. Great video and solid research. This is what we're looking for! Your efforts are highly appreciated!

[@derieuZ]

Have you tested this hot end with a 60watt heater upgrade?

[@temeyork2351]

tz hotend’s titanium heatbreak make its all the way to the nozzle to ensure tight seal, which shortens the melt zone.

[@reyalPRON]

4:00 when choosing colors for graphs it seems more logical to use one color for flowrate (lets say blue) and the green for adhesion. this way its easier to read the graph when the colors are grouped :)

[@johnathanwadhams8621]

Love the videos man keep em coming! My lk5 pro is almost as awesome as yours! Few more parts and then the board,and I'm done!

[@TheFutureLooksGrimm]

QUESTION: If I understand correctly you are saying this Obsidian nozzle improves layer adhesion and the part printed will be stronger? I’m asking because I print miniature furniture like tables using 30% wood PLA and the legs are very fragile breaking easily. Therefore this would be a good nozzle for me to invest in?

[@PrintingPerspective]

It improves layer adhesion if you print fast. On small parts, you don't really print fast so rather just increase the print temperature, but wood PLA will always be way more brittle.

[@LiamRay10]

I would love to see you use a custom heater (something like the chcb-ot 70w) as I have found your max flow just massively.

[@LiamRay10]

And a lot of times the included 60w is just a dud 45w

[@moodberry]

You sir are a true scientist, allowing the results to speak for themselves. However, I left the video confused about what I should buy for the best results. Can you just tell us what machine, what nozzle, and what flow rates get the best results? The video leaves it all up to me, but then again, I am not an expert, so might not make the best choices. I am considering buying a Bambu printer.

[@tailswheelsandcflow]

Can I ask why you wouldn't run the tz3 at 220?!?! I need that data!!!

[@TechieNI]

I havnt tried the E3D nozzle but i have got the v1, v2 and v3 of the bambu compatible hotend and for me the v3 definitely can run the best out of those 3 and v2 and v3 can beat the stock in flow too with v3 doing the best. I don't have a method of testing strength like you other than just feeling with my hands but when I print PETG the bambu like to print at 12mm^3 but it will print around 15mm^3, the v2 slightly higher but the v3 will print perfectly fine to 23mm^3 and then runs into heating errors. I know most don't use PETG for speed or flow tests but its all I have tried thus far and so far the v3 with the cht clone seems to work good and the prints don't look any different and feel just as strong. Probably not what your looking for as I would need to test with PLA or ABS etc. but just thought I would say. I do like your tests and would consider getting the E3D but I'm not keen on its price.

[@mrrooter601]

e3d seems cool, but MAN that is pricy and it still has the insane downside of not having an interchangeable nozzle size. even for me, buying a v3 after my v2 broke (heatpipe insert stuck) and a new set of nozzles (2x .2 to .8), buying ANOTHER v2 with nickel inserts would still be less than one e3d with still just a single nozzle size.

[@TechieNI]

@@mrrooter601 Couldnt agree more and I see the full kit is now available from E3D now too at a higher cost of course. I just cant justify its cost. My V3 is doing me just fine for now thank God.

[@PrintingPerspective]

@TechieNI PETG inherently has great layer adhesion. Maybe that is because you can't feel the difference in strength? I don't know. I agree that E3D costs a lot, but considering its size the performance is just unreal. It comes down to if you can justify the price in your use case. Increasing the temperature on the stock Bambu hotend gives great results too.

[@crowguy506]

Well, there’s a reason the stock profile goes beyond 220. That’s too cold to begin with.

[@2b2c1d2]

so which one is actually good?

[@DrZylvon]

Hey I'd like to suggest an idea. How about every month/quarter, you'd post a video summarizing your findings, some sort of updated "state of the art" and/or have them organized in playlists. That's something I miss with youtube, content keeps adding up and it's difficult to summarize/to know what is still a current finding.

[@jbrande]

Maybe im wrong but layer adhesion is not dependant to the temp only? The nozzle should affect that... so its a matter of setting the right temperature in the TZ so it has a better adhesion... speed and quality is another thing, but is plastic bonding together why the nozzle should affect on that?

[@jbrande]

I know it takes to much time to do the tests but it would be nice to see at diferent temps how each one improves layer adhesion

[@VictorCaoCA]

Do you need to design new profiles or does E3D provide them?

[@AM-jw1lo]

Nice video, what would be revolutionary is someone working to increase layer adhesion, funny that with all the improvements we all live with a part that is incredably weak in one direction.

[@JohnSmith-rt5yq]

So i watched and still dont know.... Whicvh nozzle is best then? Obsidian?

[@jackie127cnjk5]

bambu P1SC When using a 0.2mm print head, AMS’s material replacement time is very long! Please provide a video tutorial to change the change filament g-code code. Speed up the time to change materials! I observed the material change process: it required 4 material flushes to complete the replacement, but in fact only two material flushes were needed to complete the material replacement. TKS!

[@Saeschboy]

I am printing at around 10mm/s sometimes lower on my pretty stock Ender 3. I chanced to linear rails and to Klipper also I have upgraded the cooling. The heater isn't capable to heat more.

[@mrrooter601]

man wish I had this a month ago before I ordered a 3.0 with HS inserts. bummer.

[@PrintingPerspective]

Well, me too. I wish I bought one E3D HF instead of those three TZ hotends that I now have lying around.

[@mindbendernine]

So what do these results mean? And why is my ObXidian hotend so bad on my X1C?

[@carloderosis7598]

Intanto GRAZIE!! La gente sottovaluta l'importanza di questi fattori nella stampa3d. Questo tipo di video a mio avviso fornisce un grande aiuto alla community e se ci pensiamo alla fine quando Prusa dice "la velocità non è tutto" non ha tutti i torti. Se sei veloce ma produci componenti non resistenti a meno che tu non faccia vasi da mettere nel soggiorno, non sei nella direzione giusta. A questo punto mi chiedo se con materiali differenti tipo PETG/ASA ecc vale la stessa regola. Mi spiego meglio, il PETG deve essere stampato a velocità inferiori rispetto al PLA per ovvie ragioni, com' è possibile capire quale sia la velocità giusta senza perdite di adesione per gli altri materiali?