I get it, you want to portray educational materiel to children but... talking to **everyone** (children included) like they are 3 year olds, just turns everyone off of your message.
Speaking as a librarian, I must say that Andrew's answer is deeply unsatisfying. Basically, all he said was "the different balls performed differently because they're different." I would have much preferred someone pointing out that the reason the TPU ball didn't bounce is because its more flexible material returned to the original shape fairly slowly, and so did not provide enough force to push the ball back up. Whilst the more rigid PLA returns to the original shape fairly quickly and thus pushes back against the floor hard enough to bounce. Well, up until the point that the energy involved exceeded the PLA part's structural strength and it just failed. (That last issue being why you don't make a real sword out of stainless steel.) This video did a good job of showing us all *what* happened, but failed to really get into the *why* it happened. On a side note, since no-one else has mentioned it, have you seen Slant3D's video about a 3d printed American football? They make the point that in the real world, if you're trying to transition to a new method of manufacture, you need to maintain user-experience expectations and so at least at first a 3d printed sportsball needs to not just *act* like the air-filled rubber ball but also *handle* and *feel* the same to the player.
@davydatwood Totally understand! There were a few things that got cut due to timing a flow, but I really did talk about the molecular viscosity of the TPU and why/ how the energy was dissipated in the full cut.
@@andrewmayhall2995 I had every confidence that you knew all the things I wanted the video to include, and figured it was very likely it got lost in the edit. My comment is really more aimed at Joel as the director/producer than anything else. At the end of the day, though, what makes the video good or disappointing is what's in the final cut. It can't be rescued just because of something that was shot but not included.
Yeah, as an engineer, I wished he could've gotten into more detail. Although it seems like the topic is more complex than I thought. You're definitely right about the slowness of the reaction being why it doesn't bounce, but it isn't purely about the stiffness. It's related to how much energy is lost to heat during deformation even when the material isn't yielding. An ideal elastic material wouldn't do this, but I *think* some materials are more *viscoelastic* , so they resist fast shearing and lose energy like liquids do, but still keep their shape. Also your explanation for why the PLA fails is spot on :)
This is pretty typical of Joel's videos unfortunately. I guess it makes sense for his audience, which isn't generally deeply technical (at least that's the impression I get), but he does tend to skip actual scientific conclusions more often than not. A bit disappointing given his background as a software engineer/tester, but maybe it's just a call he makes based on the demographic his videos attract.
It would be interesting to see more experiments. ABS, CF-nylon, PETG, and some of the more exotic materials that are available to the consumer printing community. Maybe some of the different resins (if there is a consumer resin printer big enough to do a full basketball)
diameter of a basketball is 24 ish cm there are no consumer resin printers big enough for that the largest printer I am aware of that while not consumer would be affordable by a consumer is the form 3L which is just shy with the smallest dimension being 20 cm. Most consumer printers top out at 18.5 for their smallest dimension.
I tested nylon6-6, petg and asa and all 3 are a no go for the basket ball, they are simply too rigid to feel like an actual basketball. I believe it could my pa12(nylon12) but I have yet to find pa12 for fdm printers
@@OffThePathPrints please update us if you find something close enough to feel like an actual basketball, since I can’t buy more than a spool at the moment
It would be interesting to see it printed in nylon. Or you could ask your friends at PCB Way to sls print you one …pretty it’s the way the original was made
What you want is a TPU with higher dynamic hardness (note not shore hardness, that’s indentation type hardness - we want rebound type) Rebound type or dynamic hardness is effectively a rough measure of a spring constant (realistically its the coefficient of resistution you derive from this testing data too like Andrew mentioned) Reason PLA bounces is because of this, but because its not not flexible enough to handle the loads (the UTS between layers is much lower than the typical UTS for PLA) PLA’s got quite a good young’s modulus, it’s a bit stronger than we typically associate it being But because of it being a ball, as it deforms as it compresses to rebound, the deformation effectively goes in every direction meaning it doesnt matter how you oreitnate it before bouncing (it’s also why they designed it like this for the material theyused, really good stress distribution, except you need the right properties for it to work properly) Am working on my university’s EV racecar project atm and I’ve been doing lot of materials research than I normally would for fun trying to address parasitic in a flanged insanely low friction bushing has been pretty cool (Iglidur Z was the material we’re using, it’s got effectrively the same friction coefficient as teflon but much better structural properties - though evenentually realised that low friction coeficcient has lead to slippage of the conical fastener that also was deforming the flange and have together caused the issue - now just gotta figure out how to fix it)
Rubbery things aren't actually that bouncy. Steel ball bearings are actually very bouncy. It's not about using squishy material, but material with low internal dissipation, which are actually ususally very stiff. Something stiff like the PLA, but more durable, like a nylon or CF-nylon would probably be ideal. SLS nylon would probably be ideal, and may be what the real ball is made of.
That was an excellent transition to Uncle Jessy. And of course we want to see the 3d printed baseball in a bating cage, just make sure to wear eye protection.
@@romanlubij52 yeah same, because the original is made from a high tech polymer and i believe a SLS printer... there surely is one that is suitable/available for FDM printing but no one has those high tech special filaments, so PETG is probably the first choice
This was a really fun video to watch. Both as someone who 3D prints for a living, and who does STEAM workshops. The reason the TPU doesn't bounce as much is the same reason a mattress in a gym doesn't let you bounce much when you fall on it. The material properties absorbs the impact, dispersing the energy upwards as the impact progresses. It folds in on itself. So most of the energy is gone. Stiffness stores the energy for the bounce back. reason the PLA could bounce, sortoff. But the downside is stress fractures caused by storing all that energy in an unforgiving material. Just basic impact science. I also posted this on Uncle Jessies video
What if the interior of the ball had a sparse honeycomb lattice so it could evenly transfer that energy so the force isn't traveling along the circumference? Its impossible to injection mold, but not hard to 3d print.
its strange how all of this leading 3D printing channels didn't even try several types of TPU materials. its like they are paid to deliberatly do that to promote that origina Wilson Airless Basketball
hen get all the available TPU options, you'll probably find the secret recipe for that Airless Wilson basketball. I'm willing to bet on it! If i win send me one Creality Ender 3 KE @@3DPrintingNerd
This is the most aggressive I've ever seen Joel... Good times. Once I started seeing people printing in PLA and PETG, I became concerned. Those will bounce... until they break. Which means you get multi-day, 1kg single use... and then it's done. So if showing off, use whatever you want. But someone is going to want to try to bounce it... and then the problems arise. ABS is probably in the same boat, CF-anything is gonna make it MORE brittle (and cost a pretty penny). Nylons I have the least experience with so how well it does... would love to see a video of it. TPU is a much better choice for most people, but obviously it's too soft. Or is it? This issue is a product of our own creation. People went "if I want something solid, PLA/PETG/ABS. If I want something not solid, TPU/TPE". and for TPU/TPE, they wanted softer and softer. I haven't tried it yet, but I plan to try NinjaTek Armadillo which is 75D vs. the 90-95A that most TPU is. I have printed with it before and know it basically is indestructible BUT still bends and flexes and have thrown models at the ground and they bound back. So hoping for the best.
My adidas shoes are 3d printed soles with a lattice kinda similar but meant to be squishy for comfort. They have a sweet video with Adam savage explaining the material science behind it
I just finished printing an airless tennis ball as I saw this this morning. I used Flashforge Flexible PLA and it came out great. It bounces higher and for longer than an actual tennis ball. Just a PSA if you use this stuff, make sure you dry your filament first. It looks awful if you don't. Even fresh out of the bag, it didn't print great, at least not the small details of the hexagons on the ball. Dried it, and it works much better.
I think it's MORE interesting to make a basketball that doesn't bounce. 3d printed basketballs are solving a problem that doesn't exist. Also, you explained why a hard ball bounces, but you didn't explain how Wilson solved the problem. Science guy sounded like he was going to teach us something, and he just told us the obvious. Crappy video TBH.
Hey Joel! If You want it to bounce - print from PEBA material. It has probably the best energy return value out of all flexible filaments. But its expensive :( Good thing is - its freaking impossible to break that material :D
Could have saved a bit of time using a side by side with a regular basketball. How it uses the elasticity of the rubber outer shell but the rigidity of the compressed air inside to force itself back into shape. Either way, outside of the basket ball and maybe tennis, other balled sports like Baseball, Soccer, Football and even volleyball rely on the surface of the ball as much as its function. Footballs being thrown or kicked rely on its shape to be thrown as it does and if it was hollow like the basket ball then it won't fly right. Soccer balls and baseballs spin and curve through the air because of its surface which would lead to a lot of problems with how athletes play the game. Think of how many pitches thrown are not just fast balls. Stuff is good in concept but lets face it, there is no reason to replace the old air filled basket with a complex and time consuming 3D printed one. 3D printed tires are still in a weird spot right now where they kinda are good but in general they are still useless and way to expensive for most vehicles. Now 3D printed Wiffel ball and bat would be something to pull off. Heck 3D printed dodge ball would be worth making.
cool video but it felt incomplete. It was basically "this is why it does not work in TPU or PLA." and not "Lets see how close we can get." I would have liked to see a video also covering "let's see what other filaments would perform better" and "What kind of properties from a filament do we need that might not exist"?
As cool as the concept of an airless basketball may be, I do have a lot of questions about how it would perform, even if it could survive the stress of repeated impacts without the support of pressurized air. What would the air dynamics be like? Wouln't that amount of surface area trap a lot more dirt, deadskin, and sweat, especially on the inside where it would affect its performance even more?
I bought some Atraxia Art flexible PLA and printed an airless baseball that bounces really good and is flexible yet firm, If you use the Flexible PLA, It might just work.
So FDM is just a bad match for this. My guess is that they used SLS. Material wise you want a nylon. That is going to give the right ratio of ductility to hardness. Lastly, the structure is wrong you need a second layer to act similar to the bladder inside the ball to give the structure the right characteristics Basically give it more bounce.
I was hoping to find out what material would make a successful basketball :(. Well you did say balls a lot, which culminated in a lot of Beavis and Butthead style laughter, so that is good.
have you tried using two different types of filament in a dual nozzle 3d printer, use a flexible material and a rigid material. would that be possible or not
can you make one using the Bambu printer or a multiple filament where the interior is something hard and strong like Abs and the outer a rubber material?
Love hearing from Mr. Mayhall. If anyone ever wants to geek out and has the opportunity to talk with him about the science of Gloop, I highly recommend it. Dude is so smart and awesome to talk with. Keep up the collaboration Joel. ✋🏽
@@3DPrintingNerdSpiderMaker SpiderFlex TPE (shore 75A-80A) bounces very well. My friend was trying to print RC car tires and this stuff bounced like a bouncy ball. 👍
love you but can't believe you didn't print one that bounces. 3DXAV did some research and found some good filaments - ATARAXIA ART Flexible PLA. SaintSmart GT-3 High Flowability Flexible PLA Filament. Spool3DCA PLA Flex. Super PLA + Overture. ... but yeah I can't afford any of those, let alone the shipping costs!
3 adverts (two that can't be skipped) within the first 5 minutes of a 9m33s video... dude Love your content but when the adverts cut you off mid sentence and during action shots - breaks the flow and attention
I printed one and im glad it going splat wasnt just my result haha. I actually would love to get a collection of different materials and see how they print and compare the results
Hi Joel! I just relised that PCBWay also offers a 3D printing service. Since they sponsored this video, You could have asked them for a ball printed from nylon using SLS method. That would have definitely bounce, and perhaps even wouldn't crack? Printing it in MSLA printer using some tough resin might provide some success too. ;-)
Originally commented this on Uncle Jessy's video, now it ended up here 🤷: A few years ago I was looking into getting a dual color printer, and the best one for my budget had one extruder, but 2 PTFE tubes/filament going into the one extruder. Kinda like the AMS but different and way older. So my theory, through lots of g code editing, is to acquire a machine like this, for example, the Geeetech a20m (if it still exists), and with these printers, you can actually combine filaments to make different colors. Ex. white+black at same flow speed=grey. This is usually used for gradients from one color to another in prints, it might not work on a whole print. SO... You use PLA or possibly PETG for the first filament, and some 85a or 95a (prob. 95) TPU for the second filament. If the settings are correct, now (theoretically) you have a custom PLA TPU mix, that can be customized to whatever hardness you want through changing what filament is used more. This is 100% a theory, i have never owned a printer like this, plus they are probably hard to find. Just an idea.
It's actually impressive how much energy that white TPU can dissipate
i thought you were gonna try PETG, it was my first choice as a mix between PLA and Flex. Maybe Nylon would be even better.
I get it, you want to portray educational materiel to children but... talking to **everyone** (children included) like they are 3 year olds, just turns everyone off of your message.
😂🤣 wall slam might have been my favorite
He threw it with so much hate 😂😂
Joel made a dead blow ball
It's hilarious how much they DIDN'T bounce lol
Blown't
Speaking as a librarian, I must say that Andrew's answer is deeply unsatisfying. Basically, all he said was "the different balls performed differently because they're different." I would have much preferred someone pointing out that the reason the TPU ball didn't bounce is because its more flexible material returned to the original shape fairly slowly, and so did not provide enough force to push the ball back up. Whilst the more rigid PLA returns to the original shape fairly quickly and thus pushes back against the floor hard enough to bounce. Well, up until the point that the energy involved exceeded the PLA part's structural strength and it just failed. (That last issue being why you don't make a real sword out of stainless steel.)
This video did a good job of showing us all *what* happened, but failed to really get into the *why* it happened.
On a side note, since no-one else has mentioned it, have you seen Slant3D's video about a 3d printed American football? They make the point that in the real world, if you're trying to transition to a new method of manufacture, you need to maintain user-experience expectations and so at least at first a 3d printed sportsball needs to not just *act* like the air-filled rubber ball but also *handle* and *feel* the same to the player.
@davydatwood Totally understand! There were a few things that got cut due to timing a flow, but I really did talk about the molecular viscosity of the TPU and why/ how the energy was dissipated in the full cut.
@@andrewmayhall2995 a diagram is worth more than a thousand words I think 😅
@@andrewmayhall2995 I had every confidence that you knew all the things I wanted the video to include, and figured it was very likely it got lost in the edit. My comment is really more aimed at Joel as the director/producer than anything else.
At the end of the day, though, what makes the video good or disappointing is what's in the final cut. It can't be rescued just because of something that was shot but not included.
Yeah, as an engineer, I wished he could've gotten into more detail. Although it seems like the topic is more complex than I thought. You're definitely right about the slowness of the reaction being why it doesn't bounce, but it isn't purely about the stiffness. It's related to how much energy is lost to heat during deformation even when the material isn't yielding. An ideal elastic material wouldn't do this, but I *think* some materials are more *viscoelastic* , so they resist fast shearing and lose energy like liquids do, but still keep their shape.
Also your explanation for why the PLA fails is spot on :)
This is pretty typical of Joel's videos unfortunately. I guess it makes sense for his audience, which isn't generally deeply technical (at least that's the impression I get), but he does tend to skip actual scientific conclusions more often than not. A bit disappointing given his background as a software engineer/tester, but maybe it's just a call he makes based on the demographic his videos attract.
Splatsketballs aren't fun.
It would be interesting to see more experiments.
ABS, CF-nylon, PETG, and some of the more exotic materials that are available to the consumer printing community.
Maybe some of the different resins (if there is a consumer resin printer big enough to do a full basketball)
diameter of a basketball is 24 ish cm there are no consumer resin printers big enough for that the largest printer I am aware of that while not consumer would be affordable by a consumer is the form 3L which is just shy with the smallest dimension being 20 cm. Most consumer printers top out at 18.5 for their smallest dimension.
PETG breaks on the first bounce LOL
@@filgiupo4853Yeah, I just watched Uncle Jessy's video.
I tested nylon6-6, petg and asa and all 3 are a no go for the basket ball, they are simply too rigid to feel like an actual basketball. I believe it could my pa12(nylon12) but I have yet to find pa12 for fdm printers
@@OffThePathPrints please update us if you find something close enough to feel like an actual basketball, since I can’t buy more than a spool at the moment
It would be interesting to see it printed in nylon. Or you could ask your friends at PCB Way to sls print you one …pretty it’s the way the original was made
I printed my ball in Flexable PLA. It bounces somewhere between a real basketball and a deflated basket ball.
Try TPE
Joel printed a 3d basketball
And threw it on the ground!
He's not gonna be a part of your system!
He's an adult!!!!!
You can't trust the system.
@@KristopherJockReed maaaaaaaaaan
What you want is a TPU with higher dynamic hardness (note not shore hardness, that’s indentation type hardness - we want rebound type) Rebound type or dynamic hardness is effectively a rough measure of a spring constant (realistically its the coefficient of resistution you derive from this testing data too like Andrew mentioned)
Reason PLA bounces is because of this, but because its not not flexible enough to handle the loads (the UTS between layers is much lower than the typical UTS for PLA)
PLA’s got quite a good young’s modulus, it’s a bit stronger than we typically associate it being
But because of it being a ball, as it deforms as it compresses to rebound, the deformation effectively goes in every direction meaning it doesnt matter how you oreitnate it before bouncing (it’s also why they designed it like this for the material theyused, really good stress distribution, except you need the right properties for it to work properly)
Am working on my university’s EV racecar project atm and I’ve been doing lot of materials research than I normally would for fun
trying to address parasitic in a flanged insanely low friction bushing has been pretty cool (Iglidur Z was the material we’re using, it’s got effectrively the same friction coefficient as teflon but much better structural properties - though evenentually realised that low friction coeficcient has lead to slippage of the conical fastener that also was deforming the flange and have together caused the issue - now just gotta figure out how to fix it)
Rubbery things aren't actually that bouncy. Steel ball bearings are actually very bouncy. It's not about using squishy material, but material with low internal dissipation, which are actually ususally very stiff.
Something stiff like the PLA, but more durable, like a nylon or CF-nylon would probably be ideal. SLS nylon would probably be ideal, and may be what the real ball is made of.
That was an excellent transition to Uncle Jessy. And of course we want to see the 3d printed baseball in a bating cage, just make sure to wear eye protection.
Of course!
It’s such a coincidence because just 5 minutes after this video was posted on this topic, Uncle Jessy posted a video on the exact same topic😂
You made this comment before the end of the video huh?
The file was posted to reddit a few days ago, so that's why the videos are coming out, now.
@@twiggss4344 it’s still about the ball right?
How about PETG ? its not as brittle as PLA...
That was my first thought
@@romanlubij52 yeah same, because the original is made from a high tech polymer and i believe a SLS printer... there surely is one that is suitable/available for FDM printing but no one has those high tech special filaments, so PETG is probably the first choice
This was a really fun video to watch. Both as someone who 3D prints for a living, and who does STEAM workshops.
The reason the TPU doesn't bounce as much is the same reason a mattress in a gym doesn't let you bounce much when you fall on it. The material properties absorbs the impact, dispersing the energy upwards as the impact progresses. It folds in on itself. So most of the energy is gone. Stiffness stores the energy for the bounce back. reason the PLA could bounce, sortoff. But the downside is stress fractures caused by storing all that energy in an unforgiving material. Just basic impact science.
I also posted this on Uncle Jessies video
What if the interior of the ball had a sparse honeycomb lattice so it could evenly transfer that energy so the force isn't traveling along the circumference? Its impossible to injection mold, but not hard to 3d print.
Whatever you do DO NOT ask Andrew about TPU Gloop. He gets mad at you if you ask too many times 😭
its strange how all of this leading 3D printing channels didn't even try several types of TPU materials. its like they are paid to deliberatly do that to promote that origina Wilson Airless Basketball
It’s as if I was just trying what I had and have more stuff coming… strange…
hen get all the available TPU options, you'll probably find the secret recipe for that Airless Wilson basketball. I'm willing to bet on it! If i win send me one Creality Ender 3 KE @@3DPrintingNerd
4:27 that sound is crispy 👌🏼
There are different hardness levels of TPU. I wonder if more or less firm would help.
This is the most aggressive I've ever seen Joel... Good times.
Once I started seeing people printing in PLA and PETG, I became concerned. Those will bounce... until they break. Which means you get multi-day, 1kg single use... and then it's done. So if showing off, use whatever you want. But someone is going to want to try to bounce it... and then the problems arise. ABS is probably in the same boat, CF-anything is gonna make it MORE brittle (and cost a pretty penny). Nylons I have the least experience with so how well it does... would love to see a video of it. TPU is a much better choice for most people, but obviously it's too soft. Or is it? This issue is a product of our own creation. People went "if I want something solid, PLA/PETG/ABS. If I want something not solid, TPU/TPE". and for TPU/TPE, they wanted softer and softer.
I haven't tried it yet, but I plan to try NinjaTek Armadillo which is 75D vs. the 90-95A that most TPU is. I have printed with it before and know it basically is indestructible BUT still bends and flexes and have thrown models at the ground and they bound back. So hoping for the best.
My adidas shoes are 3d printed soles with a lattice kinda similar but meant to be squishy for comfort. They have a sweet video with Adam savage explaining the material science behind it
I just finished printing an airless tennis ball as I saw this this morning. I used Flashforge Flexible PLA and it came out great. It bounces higher and for longer than an actual tennis ball. Just a PSA if you use this stuff, make sure you dry your filament first. It looks awful if you don't. Even fresh out of the bag, it didn't print great, at least not the small details of the hexagons on the ball. Dried it, and it works much better.
I think it's MORE interesting to make a basketball that doesn't bounce. 3d printed basketballs are solving a problem that doesn't exist. Also, you explained why a hard ball bounces, but you didn't explain how Wilson solved the problem. Science guy sounded like he was going to teach us something, and he just told us the obvious. Crappy video TBH.
Hey Joel! If You want it to bounce - print from PEBA material. It has probably the best energy return value out of all flexible filaments. But its expensive :( Good thing is - its freaking impossible to break that material :D
Could have saved a bit of time using a side by side with a regular basketball. How it uses the elasticity of the rubber outer shell but the rigidity of the compressed air inside to force itself back into shape. Either way, outside of the basket ball and maybe tennis, other balled sports like Baseball, Soccer, Football and even volleyball rely on the surface of the ball as much as its function. Footballs being thrown or kicked rely on its shape to be thrown as it does and if it was hollow like the basket ball then it won't fly right. Soccer balls and baseballs spin and curve through the air because of its surface which would lead to a lot of problems with how athletes play the game. Think of how many pitches thrown are not just fast balls. Stuff is good in concept but lets face it, there is no reason to replace the old air filled basket with a complex and time consuming 3D printed one. 3D printed tires are still in a weird spot right now where they kinda are good but in general they are still useless and way to expensive for most vehicles.
Now 3D printed Wiffel ball and bat would be something to pull off. Heck 3D printed dodge ball would be worth making.
Caged batting please
cool video but it felt incomplete. It was basically "this is why it does not work in TPU or PLA." and not "Lets see how close we can get." I would have liked to see a video also covering "let's see what other filaments would perform better" and "What kind of properties from a filament do we need that might not exist"?
As cool as the concept of an airless basketball may be, I do have a lot of questions about how it would perform, even if it could survive the stress of repeated impacts without the support of pressurized air. What would the air dynamics be like? Wouln't that amount of surface area trap a lot more dirt, deadskin, and sweat, especially on the inside where it would affect its performance even more?
watched Uncle Jessy's video right before yours. His had more luck bouncing, yours had more science, both had a great use of 3d Gloop! Awesome!
PEBA would be a good material to try, it is a flexible 90A and has excellent energy return. It is also expensive and not many places sell it.
I bought some Atraxia Art flexible PLA and printed an airless baseball that bounces really good and is flexible yet firm, If you use the Flexible PLA, It might just work.
So FDM is just a bad match for this. My guess is that they used SLS. Material wise you want a nylon. That is going to give the right ratio of ductility to hardness. Lastly, the structure is wrong you need a second layer to act similar to the bladder inside the ball to give the structure the right characteristics Basically give it more bounce.
They make PLA that is like rubber. It bounces like a rubber bouncy ball. It's a pain the butt to print though
I was hoping to find out what material would make a successful basketball :(. Well you did say balls a lot, which culminated in a lot of Beavis and Butthead style laughter, so that is good.
Hi Guys, I am german and I am sorry if I misunderstood this. Is a batting cage where Batman lives? If yes, I'd like to see that very much!
How about TPU 98A? OR carbon filled TPU? Would probably be best printed with powder SLS either way.
have you tried using two different types of filament in a dual nozzle 3d printer, use a flexible material and a rigid material. would that be possible or not
Kids use as soccer ball? Use softer flex material and if it works, pull a prank on another with imbalanced internal structure.🤪
I would try esun PLA ST. Has an amazing elongation compared to normal PLA so it should perform well
Would love to see one of these pronted out of polypropylene, much tougher than PLA and much stiffer than TPU
Btw couldn't you use other filament types😅 like i heard unknown filament by a filament youtuber
can you make one using the Bambu printer or a multiple filament where the interior is something hard and strong like Abs and the outer a rubber material?
It's a Vibranium basketball from Wakanda, it's absorbing vibrations.
So the big question is does a filament exist that can mimic the material used by Wilson.
3d printed balls that will be thrown away (baseball, football) may not be a good idea because of air friction.
So what material was the Wilson ball printed with? It seems like it was not TPU.
Those things are better than airbags!!!! There's gotta be a use for something that dissipates that much energy!!!
What about shell make in pla and interior in tpu ... Or do like 2 mm one then 2mm second and do it in alternate way.
Do you think Armadillo 75D tpu would perform better because it is stiffer?
You're supposed to print it out of flexible PLA. Not TPU. LOL
Joel... use the xl's magic. Print a PLA ball coated in TPU. Combine materials.
Love hearing from Mr. Mayhall. If anyone ever wants to geek out and has the opportunity to talk with him about the science of Gloop, I highly recommend it. Dude is so smart and awesome to talk with. Keep up the collaboration Joel. ✋🏽
LOVE that dude!
@@3DPrintingNerd What about playing with the wall settings and using something like eSun eLastic TPE-83A unless someone makes one with a lower Shore.
@@3DPrintingNerdSpiderMaker SpiderFlex TPE (shore 75A-80A) bounces very well. My friend was trying to print RC car tires and this stuff bounced like a bouncy ball. 👍
what if you did a 2-in-1 PLA + TPU? has anyone ever tried mixing the two?
I am laughing so hard I had to pause the video. You throwing a ball and it behaves like a bag of sand.
It is so counterintuitive to see basket balls that doesn't bounce
I'm sad we didn't try out chinchilla filament or ninjaflex edge
What software do you use to design it in order to print I really want to know.
missed opportunity to show off PLA supports for TPU on the Prusa XL
The TPU seems like an alternative for kids dodgeball... 🤔
Wilson over here inventing the $2500 wiffle basketball.
PETG should do rather well, or TPU at 70D or even higher!
Tbh I would think PETG or nylon would be a better choice than PLA
love you but can't believe you didn't print one that bounces. 3DXAV did some research and found some good filaments - ATARAXIA ART Flexible PLA. SaintSmart GT-3 High Flowability Flexible PLA Filament. Spool3DCA PLA Flex. Super PLA + Overture. ... but yeah I can't afford any of those, let alone the shipping costs!
I have the flexible PLA but it wasn't dried yet enough. The baseball I showed at the end was flexible PLA.
Odd, no discussion of Modulus of Elasticity ... interesting
Dang, my ball is better! Flex PLA actually works.
2:00 When you order your $2500 airless basketball from Wish
Try it with PP. Did a tennis ball & the bounce was great.
does the design take into account absorbing the kenetic energy?
i think u should try chinchilia or TPE
Missed opportunity to try ASA(or ABS...) for this........
Well at least we know it's great for shock absorption!
can you share OrcaSlicer profile config files for TPU?
3 adverts (two that can't be skipped) within the first 5 minutes of a 9m33s video... dude
Love your content but when the adverts cut you off mid sentence and during action shots - breaks the flow and attention
Agreed - and sadly that’s 100% on RUclips. It sucks.
Probably need to print it in PETG to keep it together,.
Looks like Luke Skywalker got to that white PLA ball.
Can you please 3D!! print something for me
How long does it take to 3d print the basketball
Can we please get someone to make a bouncy filament!
I saw 3D printed balls the other day under some guy's truck. They were bouncing just fine.
😂😂
lets try that bounce again Joel from space lol
I was hoping you were going to tell us which filament actually makes a good basketball
Working on it! I’ve heard PEBA filament makes a good one.
I would love to see the batting cage tests :) .
Nylon or PP would likely work best for this
Well those balls would make good dodge balls now
What if you print the outer perimeter with tpu and the infill with pla+? You can do it with the Prusa XL
That's a fun idea, hoping to try it.
Wow look ma I was on a Joel show! High five 🖐️
Can you combine PLA and TPU in one ball?
you need TPU-CF or TPU-GF
Its hilarious to see how these fad prints take off and be completely and totally wasteful.
Yup, fun is wasteful. You got me.
Why haven't you tried PETG?
I wonder why nobody seems to print it out of pa12 wich the original ball is made of
Working on it :)
Imagine spaffing two grand on a netball
he looks like zoolander if he worked a 9-5
I printed one and im glad it going splat wasnt just my result haha. I actually would love to get a collection of different materials and see how they print and compare the results
1:08 your face experiencing an eclipse
Hi Joel! I just relised that PCBWay also offers a 3D printing service. Since they sponsored this video, You could have asked them for a ball printed from nylon using SLS method. That would have definitely bounce, and perhaps even wouldn't crack?
Printing it in MSLA printer using some tough resin might provide some success too. ;-)
Originally commented this on Uncle Jessy's video, now it ended up here 🤷:
A few years ago I was looking into getting a dual color printer, and the best one for my budget had one extruder, but 2 PTFE tubes/filament going into the one extruder. Kinda like the AMS but different and way older. So my theory, through lots of g code editing, is to acquire a machine like this, for example, the Geeetech a20m (if it still exists), and with these printers, you can actually combine filaments to make different colors. Ex. white+black at same flow speed=grey. This is usually used for gradients from one color to another in prints, it might not work on a whole print. SO... You use PLA or possibly PETG for the first filament, and some 85a or 95a (prob. 95) TPU for the second filament. If the settings are correct, now (theoretically) you have a custom PLA TPU mix, that can be customized to whatever hardness you want through changing what filament is used more. This is 100% a theory, i have never owned a printer like this, plus they are probably hard to find. Just an idea.