I would love a little intro or outro about what the two materials are, the techniques to produce them, their environmental impacts, and anything else interesting! ;) Thanks for such interesting videos!
I've only just started printing PETG but so far very impressed. Particularly in situations when PLA would burst such as enlarging a hole in a small part with a drill. I think PETG will take self tapping screws better and printed screw threads will be much stronger.
I love PETG, I have some from a one off order we did, and its a transparent blue. I did a fun project to print a bike rim idea. And the cross section withstands a 200lb teen stepping on it without any deformation.
The fact that the PLA held 3 kg (about 10%) more after being baked may be explained by the fact that it got 10% higher. The stress the PLA was able to handle was not any higher after being baked than before, but since the PLA bar was higher, this effectively created a 10% longer lever, so the bar was able to withstand 10% higher torques.
That's not quite how you should compare strengths. The strength of a material depends on stresses, not necessarily forces. Going off the dimensions I saw at 2:00 and 6:41 (9.5cm from cantilever to applied force and 15mm by 15mm area), I found the failure stress to be about 50.86MPa or 7377 Psi. This lines up nicely with this datasheet I found. plastics.ulprospector.com/generics/34/c/t/polylactic-acid-pla-properties-processing To find this, all you have to do is take (Moment about face of failure) * (distance from the neutral axis) / (second moment of area) You can use this to design your geometry with a specific factor of safety in mind for each material!
Want to make your video better? Turn down the volume of music. Music should be relatively calm, if you talk. It does not need to perfectly cover up noise, if you wanted to do that.
For the last baking test, I think the increment of strength of PLA is not because of being heated, but the thickness is increased and that leads to it's pulling strength increased.
These are great tests thanks for sharing! I’m interested in recycling PETG to a spool 🧵 and then output to 3d printer again. I’m a noob & wondering if there is a discord or chat channel I can join? Do you also twich live stream any experiment 🧪?
Cool experiment. I've noticed parts printed in petg sometimes have a slick feel to them, almost like wax. I've been using the Amazon Basics petg as well. I've been printing it at 230C and 72C bed temperature. What temps did you print your petg and pla?
I printed with Sunlu PETG and what I niticed was the PETG is really fragilar… It snaps and breaks, not stretching at all. Start thinking that I got some bad batch or bad PETG…
you should've checked the amount of weight it can take before permanently deforming! I also wish you tested the Z strengh. cause honestly most plastics do great in the X-Y directions but are brittle in the z direction
Also you might want to use test parts that have symetricaly identical holes on each end of the test rod and used these two holes for alignment and dimensional reference test points. apply the loads against these alignment holes . . . This would help test the same material geometries and to give a more verifiable/ true result.
great video, I have a AM8 and I like it after I upgraded from anet a8, have you thought change the the stock extruder? I want to change mine to Titan extruder direct drive
I’ve been told by everyone that PeTG is far better at withstanding heat vs PLA+.. Example, leaving a part in a hot car. Maybe temps reaching 160f. Would the PLA+ outlast the Petg?
Great video but im definitely new to 3d printing and it looks like the pla has a nicer looking print. Am i wrong, does one print better then the other?
You are correct, PLA is easier to print, PETG is more challening to find the right settings and still it has more stringing for example. It's not as hard as PLA, so the usecases are different.
awesome now im printing a mechanical vise of thingiverse to explore the resilience of the transparent petg amazons basics i cant wait to test this vise :)
I think you petg print should be re done at a higher temp.and less fan cooling. The example you where using do not look like the petg bound very well with flaky layers. I know petg can be considerably stronger then pla, but it takes a higher then segested temp to print with and the cooling can be tricky depending on the mix. I have seen the flaky print issue with my own experience. It took 15c higher temp and less fan to get smooth print
your video does not show the petg failing point at all. not 1 bit of the weight at which it failed. aka bent. but you showed the pla. so sorry this video doesnt prove anything at all.
@@Crosslink3D first of all thanks for replying on such short notice. I am new to 3d printing (just got an ender 5 two days ago) and i want to be able to print things that don't break as easily. Overall I still prefer pla.
something is seriously wrong with your PETG settings, those parts look way uglier than they should be. I have been using amazon basics PETG at 245c on 75c bed @ 35mm/s infill, 18mm/s walls 7mm retraction @ 50mm/s. parts come out very glossy. very, very, little stringing. Your parts look like chewed bubblegum
@@Dave-ub6gq It was done in Cura 4.0 I think the machine has to be the same to import the profile unfortunately, Mine is a CR10S Pro. I couldnt figure out how to get it export as a generic printer profile so I made an image with all the settings. you will only need to create a new profile for it. imgur.com/oLJEXpe
If you get a chance go to bilibuzz and check out the hot end for the Anet A8 I bought me one they are on sale 50 bucks off looks ok to me let me know your thoughts on it Thanks
Your testing are questionable as you did not really test them equally. Also the test results will be affected by the inside of the items, are they full or criss-crossed? Nice video but not a real reliable test.
This is a horrible test that doesn't show anything. You cannot load those at anything remotely near constant strain rate with your method. Also, the direction you are pulling in is terrible because it allows the table geometry to affect the test. Please at least look up some info on how to do proper testing beofore you do it. I realize not everyone is an engineer, nut that doesn't excuse laziness.
You draw a false conclusion. Baking did not make it stronger. It made it thicker. The material is not better there is just more of it. The thickness of the beam is the largest factor (cubed power). If you printed a test specimen that is the same thickness and width as the oven cooked part after the oven you will see this. I would suggest you may have actually gotten a weaker part but I have not done any math...
Please check out the Description for print settings and material used
I would love a little intro or outro about what the two materials are, the techniques to produce them, their environmental impacts, and anything else interesting! ;) Thanks for such interesting videos!
Kudos for repeating your tests and averaging results for more statistical accuracy.
Would also be good to see the individual values to see how much it varied.
I've only just started printing PETG but so far very impressed. Particularly in situations when PLA would burst such as enlarging a hole in a small part with a drill. I think PETG will take self tapping screws better and printed screw threads will be much stronger.
I love PETG, I have some from a one off order we did, and its a transparent blue. I did a fun project to print a bike rim idea. And the cross section withstands a 200lb teen stepping on it without any deformation.
The fact that the PLA held 3 kg (about 10%) more after being baked may be explained by the fact that it got 10% higher. The stress the PLA was able to handle was not any higher after being baked than before, but since the PLA bar was higher, this effectively created a 10% longer lever, so the bar was able to withstand 10% higher torques.
You should have immersed the parts in boiling water for a set duration of time in order to get a more accurate break / flex test results
Thanks, I wanted to confirm if PETG failed in a safe manner, and not shatter. I'm looking forward to printing slingshots.
That's not quite how you should compare strengths. The strength of a material depends on stresses, not necessarily forces. Going off the dimensions I saw at 2:00 and 6:41 (9.5cm from cantilever to applied force and 15mm by 15mm area), I found the failure stress to be about 50.86MPa or 7377 Psi. This lines up nicely with this datasheet I found. plastics.ulprospector.com/generics/34/c/t/polylactic-acid-pla-properties-processing
To find this, all you have to do is take (Moment about face of failure) * (distance from the neutral axis) / (second moment of area)
You can use this to design your geometry with a specific factor of safety in mind for each material!
petg just bend... but why u didn't show as u did for pla the pressure u were applying? that's tricky
Great content, learned a lot. PETG is also cheaper as well which is a plus depending on where you source
Want to make your video better? Turn down the volume of music. Music should be relatively calm, if you talk. It does not need to perfectly cover up noise, if you wanted to do that.
For the last baking test, I think the increment of strength of PLA is not because of being heated, but the thickness is increased and that leads to it's pulling strength increased.
No sheet of the results? At least a table or a graphic would be very helpful for a quick comparison.
These are great tests thanks for sharing!
I’m interested in recycling PETG to a spool 🧵 and then output to 3d printer again.
I’m a noob & wondering if there is a discord or chat channel I can join? Do you also twich live stream any experiment 🧪?
Fas83 is an inspiration
Cool experiment. I've noticed parts printed in petg sometimes have a slick feel to them, almost like wax. I've been using the Amazon Basics petg as well. I've been printing it at 230C and 72C bed temperature. What temps did you print your petg and pla?
I printed at 235C an 80C bed. Also tried 230C and 75C bed, which had less stringing
I printed with Sunlu PETG and what I niticed was the PETG is really fragilar… It snaps and breaks, not stretching at all. Start thinking that I got some bad batch or bad PETG…
you should've checked the amount of weight it can take before permanently deforming!
I also wish you tested the Z strengh. cause honestly most plastics do great in the X-Y directions but are brittle in the z direction
Hi. What temp point does pta soften? Petg is more heat resistant? Tnx
What about spinning? At what point would both filament shatter?
The water test
Hold the part under boiling water for a certain time period, the poring over isn’t consistent.
Love the vid.
Also you might want to use test parts that have symetricaly identical holes on each end of the test rod and used these two holes for alignment and dimensional reference test points. apply the loads against these alignment holes . . . This would help test the same material geometries and to give a more verifiable/ true result.
Thank You for this amazing video!!
Glad you liked it!
which material should i use for it to be flexible as well as be able to hold 100 N force ? please reply ASAP
TPU material should work. I used the SUNLU and it is flexible but still strong. What is the usecase?
great video, I have a AM8 and I like it after I upgraded from anet a8, have you thought change the the stock extruder? I want to change mine to Titan extruder direct drive
I am planning to upgrade to bowden soon. Of course there will be a video about it.
I’ve been told by everyone that PeTG is far better at withstanding heat vs PLA+..
Example, leaving a part in a hot car. Maybe temps reaching 160f. Would the PLA+ outlast the Petg?
Great video but im definitely new to 3d printing and it looks like the pla has a nicer looking print. Am i wrong, does one print better then the other?
You are correct, PLA is easier to print, PETG is more challening to find the right settings and still it has more stringing for example. It's not as hard as PLA, so the usecases are different.
awesome now im printing a mechanical vise of thingiverse to explore the resilience of the transparent petg amazons basics i cant wait to test this vise :)
Cool, post a link of the vise! Would like to try it.
the credits goes to the creator not me :)
You miss the most common question we ask.....how long can it stay outside? aka U.V test
Good point to mention this here. This video clearly needs a follow up and more comparison with other materials. Taken this as a point on my list.
What about nylon vs petg. Which is stronger n flexible
PETG looks can handle more pressure 💪👍,if I go to print something in store I will choose PETG.Thanks.
Which one is resistant to gasoline?
Which is more heavier?
Another great video! Thanks! Only questions I have regard printer setting. INFILL? Layer height? Print temps? etc.
Thanks for pointing out! I've put the infos in the description.
Thanks for pointing out! I've put the infos in the description.
Thanks for pointing out! I've put the infos in the description.
I want to make a keychain to attach to my car keys, what material do you recommend me to use? Thank to anyone who answers.
just curious what is your accent? It's very cool!
I’m German 😁 with Bavarian slang 😂
What about Filament brands if you look at the reviews on amazon almost everyone has something bad to say lol.
Nowadays, I am using mostly dasfilament PLA and PETG
@@Crosslink3D Just looked into it their link sends you to amazon and they don't have it. Guess we are out of luck in the states.
It would be nice if you also talked about some of the more theoretical/material differences -- biodegradability, toxicity, etc.
Interesting test :-)
Thanks for sharing :-)
hope can do a PETG vs ABS video
just put a A8 together what should i do first second third?
Level z axis, level bed, print benchy
i know this is a few years old. but you should rig up a pulley so you aren't hit in the head each time.
Hi! Is two components epoxy able to glue PETG?
Not sure, why not try it out?
@@Crosslink3D Because if I can't glue it I don't buy it now for a project I'm developing
Use Epoxy with fiberglass powder (sold in a bottle) and mix together. Once layered, it will be ultra strong and heat resistant.
I don’t know how anyone would take this methodology and results seriously
Gutes Video 👌
You turn on the cooling fan?. how much Fan speed layer ?
I tested no fan, 50% and 100%. With no fan during print it looks much smoother.
I think you petg print should be re done at a higher temp.and less fan cooling. The example you where using do not look like the petg bound very well with flaky layers.
I know petg can be considerably stronger then pla, but it takes a higher then segested temp to print with and the cooling can be tricky depending on the mix.
I have seen the flaky print issue with my own experience. It took 15c higher temp and less fan to get smooth print
Makes sense. At some point in the future, I might repeat this with different temperature samples to see the differences
your video does not show the petg failing point at all. not 1 bit of the weight at which it failed. aka bent. but you showed the pla. so sorry this video doesnt prove anything at all.
What is the infill?
100%
can the ender 5 print petg?
Sure, not an issue. Why do you like to use PETG over PLA? Just curious
@@Crosslink3D first of all thanks for replying on such short notice. I am new to 3d printing (just got an ender 5 two days ago) and i want to be able to print things that don't break as easily. Overall I still prefer pla.
Machst du super!
Danke!
What the G at the end of PETG means.
Polyethylene terephthalate glycol-modified
bad tests because petg bends easier i didnt mention that
You should have worn a hard hat just in case.
lower or drop the music
PETG:flexible but unbreakable like ABS(actually ABS is not flexible but it’s unbreakable too!)
ABS is significantly more rigid: it has a high Young's modulus and changes its shape minimally under load, but definitely breakable at a higher load
PLA looks tons better in quality tough xD
👍
something is seriously wrong with your PETG settings, those parts look way uglier than they should be. I have been using amazon basics PETG at 245c on 75c bed @ 35mm/s infill, 18mm/s walls 7mm retraction @ 50mm/s. parts come out very glossy. very, very, little stringing. Your parts look like chewed bubblegum
Hey Demoncaller, thanks for pointing out. I will try your settings and check out the results.
@@Crosslink3D Here is my full PETG CURA profile if you or anybody else wants to try it uploadfiles.io/t82jlj3n
@@TheDemoncaller I couldn't import this into Cura 4.... Any ideas? Was it done in a previous Cura version? thanks for the tips
@@Dave-ub6gq It was done in Cura 4.0 I think the machine has to be the same to import the profile unfortunately, Mine is a CR10S Pro. I couldnt figure out how to get it export as a generic printer profile so I made an image with all the settings. you will only need to create a new profile for it.
imgur.com/oLJEXpe
MICROWAVE!!!
😁
lol
Average walue
If you get a chance go to bilibuzz and check out the hot end for the Anet A8 I bought me one they are on sale 50 bucks off looks ok to me let me know your thoughts on it Thanks
Could you share a link please?
This person has no idea how to test strength
Your testing are questionable as you did not really test them equally. Also the test results will be affected by the inside of the items, are they full or criss-crossed?
Nice video but not a real reliable test.
This is a horrible test that doesn't show anything. You cannot load those at anything remotely near constant strain rate with your method. Also, the direction you are pulling in is terrible because it allows the table geometry to affect the test. Please at least look up some info on how to do proper testing beofore you do it. I realize not everyone is an engineer, nut that doesn't excuse laziness.
You draw a false conclusion. Baking did not make it stronger. It made it thicker. The material is not better there is just more of it. The thickness of the beam is the largest factor (cubed power). If you printed a test specimen that is the same thickness and width as the oven cooked part after the oven you will see this. I would suggest you may have actually gotten a weaker part but I have not done any math...
annealing the material alters the polymer alignment increasing strength
@@MrDead1975 you have missed my point.
what could verify these theories is to bake the material and then sand it until it has the original thickness.