Which would be even more impressive if we're talking about showing prints to friends and family.
"This is 3D printed, and I CARVED IT WITH MY BARE HANDS"
I haven't really tuned my PLA supports since when I print my own functional stuff I design around overhangs and bridges, but the last few times I did need them tree support peeled of TPU but left some traces on the PLA lol
I converted an old Weller variable temp soldering iron into a support material removal tool xD took the solid steel tip and forged it into a small blade lmfao, it's amazing.
I print parts for RC trucks, and anything I want to have some give I just print it in mildly flexible TPU at 100% infill. Shit that would normally snap off in PLA just flex a bit, like screw ears. I something similar with a 1/10th scale Hilux recently. The interior is printed in ToughPLA except for the cage which is painted TPU, and then the body shell there is completely printed in TPU.
https://preview.redd.it/m8x7xn6a7iwc1.png?width=1234&format=png&auto=webp&s=8eb51cb4f7e3a3eb5cecbf0309681d1996dee0ea
I currently only have a working AMS for my X1C. I built an ERCF for the 2.4 but it never fit together correctly. The rods got stuck and the belt tensioner snapped the moment I tried to test it.
That being said, I wouldn't trust the ERCF to reliably load anything with a shore hardness this low even if mine worked
Oof. Yeah. I am glad I ultimately decided not to do the ERCF. Currently considering selling one of my printers and aquire a bambu x1c but I am rly hoping some companies will innovate and create more affordable filament changing options.
That's good to know. I always thought they just had their own strange spool mold, but it's somehow weirder that they are wasting all of that extra plastic for cosmetics
I printed my girlfriend a [skull](https://media.printables.com/media/comment_images/ba/c61b98-8503-4d9d-9d94-5cb51bdaf02d/thumbs/outside/640x480/jpg/20240415_104715.webp) out of [flex filament](https://media.printables.com/media/comment_images/57/039faa-28cc-4921-a6af-b9aa9cc4e95c/thumbs/outside/640x480/jpg/20240415_104917.webp) to act as a stress ball.
When I gave it to her, one of the first things I did after showing her it was smash it in my hand. She was so startled, as if I had just gifted her something only to brake it in front of her like some weird hazing, I felt so bad in retrospect š
I printed a replacement strap for my snowboard bindings and no one could break it with any amount of force it was wild. It was like a quarter inch thick too, it barely stretched at all
TPU 95A
https://www.printables.com/en/model/765077-burton-snowboard-binding-ratchet-strap-for-older-b
I don't have any pictures of my actual print unfortunately
That's rad. I used 95A to design and print bolted mounts that acoustically decoupled a compact subwoofer in my car. It worked for the most part, vibrations were dampened. But due to a few hot days, they lost their flex and the bolts started to unthread.
Fuckin kids eh. Little fuckers grab everything and the first thing they try to do, if you made it, is make it break. Excellent prototype testing machines they are though.
I printed one of those air basketball models that was the rave a while back, did it so it was about the size of a hardball (baseball), and we played catch with that everyday. You can throw that thing full tilt at a 5 year old and they'll grab it. Probably the single most print I've made as far as enjoyment goes.
My initial thought was no as I print scenery for war gaming mostly. Then got thinking of how I could make a 1 April table for a friendly game. Where everything is wobbly
That's what I did. I printed something from tpu and twisted it and stomped on it just to have it spring back. My friends were so amazed they always ask me to print something for them
I got $20 from my brother because he thought he could break my tpu benchy. Went straight for the smoke stack. Tpu is some awesome stuff and my most popular filament since I fly FPV. Mounts, skid plates gotta love it
I think the only reason I haven't had this problem is because I usually print durable functional parts for things like RC cars. If my friend was able to break it just by bending it, it obviously wouldn't work for it's intended purpose.
Wait, no, that's not it. I don't have friends to hand 3d prints to.
because a lot of people liken plastic to being fragile.
most people arenāt aware of the structural limits or capabilities to printed partsā¦ heck most people outside the hobby donāt even realize we have different plastic types that have different mechanical properties to them..
Actually, they don't do it on non-printed plastics, as mentioned in the title.
I don't agree with this logic, but I am pretty sure they do this because they think "oh you can just print another, it doesn't matter if I break it while testing it out".
right, because they donāt realize the non printed and printed ones are the same plastic type (sometimes). or because it visually looks slightly different.
^ this. That was my thought too. 3D printing is varying degrees of commonplace for most here but most of the others out the have no idea or way skewed ideas of what's really possible with all this, so they test it out and gain some experience ... at the cost of a print at times.
I think deep down they actually just want to see how easily it breaks because they are slightly uncomfortable with the idea of 3D printing for whatever reason and just rationalize it by thinking they can make another.
>Ā most people arenāt aware of the structural limits or capabilities to printed partsā¦
...imho. you are overestimating if you think they are aware of structural limits.
Most people's knowledge end at "mEtAl sToNk, pLaStic gArbAGe"
the people i usually show prints to are actually super careful with them like the print's going to explode if they look at it wrong. Sometimes if it's something meant to bend i show them that, like a pla stress ball i have (a pain to print)
I have a PC plate I printed for leveling the gantry of old Fortus printers that I use for work. I swear that thing has suffered more abuse than any tool I own but it hasnāt lost even a chip or gone out of tolerance in any way. It is definitely the right material for prints that need to be durable.
It's still more likely to shatter than other plastic materials, but the material differences between what amounts to a single flat "crystal" piece of PC like a CD and a filament printed PC part are pretty wild.
One research group had spool of pc and we got some excess it was almoust impossible to tear with hands at in its thin (only 1 layer maybe 0.2mm if i recall correctly) and flexible form of box shaped piece with little bit more plastic on the edges. Also we had part shaped like a frisbeegolf disc edge and you could bend it anyway possible and could not damage it by hands even when really trying. Really great material for its use cases.
Yeah, it's frustrating. I've always assumed it's just people trying to work out how strong a print can be vs manufacturing types that they've known their whole life.
I think it's more similar to a baby putting its new toy in its mouth. 3D printed items are novel to most people, and less intelligent humans seem to instinctually react to curiosity by probing without consideration of the consequences.
This. This right here. Us humans are VERY good at destroying things. Even when we don't intend to. Don't attribute to malice that which can be explained by ignorance. Unless the person is a real D bag then it's straight malice, no cap.
Well on the subject of communication..
instead of telling them how ot was made tell them what material is it from..
Or better yet "careful, it's fragile" before everything. (If it is)
People are used to mass produced toys om this day and age. And not nylon.... I'm talking that if you vuy a figurine in a store and the fogure has a thin sword or part it's usually make from a flexible material.
So instead of habdling a piece of resin and saying "it's resin" or "it's 3d printed" forget the semantics and add the context. "Don't bend it. Be careful with that it will break".
What were the first things you did when you first got a printer and made your first 3D prints?... you test the limits to see if it will be reliable, if it printed properly, and to see how strong it really is compared to traditionally made plastic parts.
After you break a few parts you know the limits and stop testing parts in a way that will break them. Yes most people know small fragile plastic will break - but to most, 3D printing is a new concept and they want to compare a printed part to their previous experience with other plastic parts. Even if you know it will break... but will it break in the same way?
So just always tell people its fragile and not to test it out by bending it or whatever.
>What were the first things you did when you first got a printer and made your first 3D prints?... you test the limits to see if it will be reliable
In my mind I'm imagining 300,000 years of humans testing out sticks to see if they break. Must be in our genes by this point.
This is so funny to me. My mother asked for track connectors for hotwheels tracks, and when I showed her the first one to make sure it was a good fit she almost snapped it in half. I was flabbergasted.
I gave my wife a 3D printed lightsaber the other day and her first inclination was to flip it in the air like a ninja and accidentally fucking send it into a wall at max velocity. It survived thankfully.
https://preview.redd.it/czzeyg255iwc1.jpeg?width=5712&format=pjpg&auto=webp&s=d436068bc49d6c4579a58bbbed34257eaf462cd2
Outside the US drywalls are far from a given, hence the german wall vs. us wall meme.
(Hole in drywall, and image of a brick wall with x-ray of broken hand, and text - "come again, i will break your other hand too!" in german)
Same reason kids break everything in range - the instinct to update one's internal library of material property intuitions. Just hand them some old support to fk around with first, if you can find any you haven't already destroyed via fidgeting yourself heh.
Print off a couple full sized generative design table legs and watch them break themselves trying to break your print. That stuff can be scary strong even when itās just printed in PLA.
I was just ranting about this the other day. Itās happened with anything Iāve made from prints to furniture to welded steel. Next time someone tells me their coffee table is Ikea Iām going to elbow drop it like Randy Savage.
It's def happened to me.
then we get to have the following conversation
"why did you do that?"
"I don't know, I wanted to see how durable it is"
"Now it's broken..."
For some reason i kept my calibration prints, if i know someone might want to stress test my sculpts i offer them one to test out while they look at the piece
Yep. I modeled and printed a complex telegraph key - over two dozen small parts all told. This dude picked it up and twisted it apart "to see how strong it was".
What the actual fuck.
Much as I appreciate the compliment, I can't take credit for the one you printed (I didn't put mine up on Thingiverse). This was the one I made:
https://preview.redd.it/ri3fbc63lmwc1.jpeg?width=3264&format=pjpg&auto=webp&s=c149a3996cfd36b3455ebf6cadc1218483676e1a
*You learn a lot about a thing by understanding how it fails.*
I think that was from a system engineering or electronics book. But I guess it holds for plastic as well.
Sometimes I give people really difficult to break prints and watch them struggle to do anything to it. So something small, pokey, and made of the finest TPU 65A or ABS-PC I have. Itās really funny watching them get mad when it pokes them, they try to break it harder, and they only get more poked
I mean asking someone how strong and actually testing yourself can be two very different things. My really strong is different from yours but ya shouldnt just go bending.
Its just a thing people do. People prefer hands on testing even when they shouldnt. I work alot in the swim industry and the high end suits are like compression suits which can easily rip yet when you tell people that the first thing they do is gonand yank and stretch them.
This guy I work with just crushes prints in his hands accidentally somehow. Heās a big goofy dude, you just cannot hand him anything remotely delicate.
This is quite the phenomenon. I am guilty, before getting my printer, i was at a wedding that had plastic charge plates. So of course i picked one up to see how flexible it was and broke it clean in half. Also still find myself testing my own printed parts now although with a bit more caution
Monkey brain go to smash mode when handed new item.
But for me it's cool since I try not to make a fragile part unless specific for something. 1st print I do is how well does it look 2nd print (if 1st passed) is how well does it hold up.
Sometimes the easiest way was to see how strong something is, give it to someone else to look at
It's just human nature of unintelligent people I think dude. We're all naturally curious and first hand results are always way more appealing that second hand descriptions. Dumb people forget about the element of respect and just go straight to the first hand result.
> It's just human nature of unintelligent people I think dude.
Also of intelligent people, some are just too curious to figure out how a material behaves. I don't think anyone here in our company that does high end 3D printing has anything lower than a master's degree, most have a PhD in 3D printing, and yet when newly developed parts are handed around during a meeting it generally takes only a minute before your hear "[SNAP] oops sorry, did you still need that?". Plastic, titanium, ceramics, I've seen them destroy anything and everything out of sheer curiousity
I printed a ball within a ball for someone at work. They were super impressed for 20 seconds and then threw it against the wall so it would bounce off and they could catch it...... It split in half and he looked at me like I was the fool.
I have printed the pink panther torso a few times and it always gets me that almost without fail the person I hand it to will put both thumbs on the breasts. Male or female - doesn't matter.
My guess could be cause they want to get a feel for the material. When i got my hand on something relatvely thin metal printed titanium, bending it (very carefully) was also my first instinct.
Can confirm, was showing a fellow classmate at school a power bank I recently finished, and within 20 seconds he smashed it lid first onto a wooden pedestal.
Thankfully he only knocked the battery loose, and did 0 visible damage.
Most of the time, though, they treat the things I hand them with respect.
They don't understand the process of designing, supporting, calibration, printing and post processing plus the cost of materials and time invested, they view it like a printed paper that you can just send to the printer in no time at virtually no cost
Thats because a lot of people print fragile and very breakable non functional things to save on print time and material. I mainly print functional parts so this isnāt an issue but I know of people who print really fragile stuff that just looks and feels cheap.
I do it to myself... Things I've printed. š¤£
I think because it's new and quality varies wildly. It's the same genes that after tightening a ratchet strap and the obligatory "that'll hold it" comment
It's the "I know Kung-Fu" test. You tell that to anyone and the first thing they do is immediately put up a fighting stance and try to attack you playfully. One of the most time tested jokes is your friends simply going "nuh-uh" to anything that's slightly impressive.
Back to the point. They just simply can't believe the future in which you can have anything made in the palm of your hands and they just wanna test it like "Whatever you want being made for free? Nuh-uh!" and then it's breaking time.
Hell, i 3d print the shit out of shit and still evetytime i hold a piece i try somewhat to break it. Of course if its a miniature or something i dont, but i work in manufacturing and we use 3d printed parts for all sorts of shit and i am constantly baffled at how durable this shit is.
I think it's because it's the first time they've ever held a 3D printed object in their hands, and the monkey-brain instinctively wants to test out this new thing in the world.
I think people probably assume that since you didnāt buy it that itās free, not accounting for how long you waited for the print, or how much you paid for filament, or how much the printer was lol
I had this happen with a simple monitor stand. Gave it to buddy, buddy immediately stands on it. It supported him but like damn bro, it doesn't have to be THAT strong
Honestly not an issue I've had. But whenever I show people anything 3D printed I always give a breif run down of how it's made, weaknesses and strengths. And use case of whichever filament I used. Ignore the people saying you need better friends etc. But better communication before letting people touch is definitely a good shout.
Kinda related, I once handed someone a 3DBenchy for them to look at and they pointed to the āCT3D.xyzā on the bottom of it and asked something along the lines of āis this the code that makes the 3D printer work?ā I was so flabbergasted at how dumb that question was that I had to ask for clarification then pause for what felt like an eternity before explaining that itās just the website that belongs to the person who designed the 3DBenchy. I get that the concept of 3D printing is complicated for those who are not part of the hobby or industry, but some people ask dumber questions than others.
I don't know if you've ever seen this, but little boys will actively, vigorously try to kill themselves or the other little kids around them all day, every day.Ā Your job is to protect them from themselves long enough to survive those years, and make it into adulthood.
So, this desire to wreck stuff, or at least test its limits, is a remnant of their thought processes earlier in life, is my take on it.
I see your point, thats why now when i show my dad a new print i say: "Dont break it, theres no need to" and he says: "I will try not to, sorry". But thats how they are "coded", just like you said,
Tbh. i can understand that. People are extreme curious, which is why military boobytraps frequently use "strangeness" as the bait.
...i will one up you!
What i REALLY dont get (and what really irks me) is "designers" draw up a model with close to zero wall thickness around holes - well it should be fine since that part is unloaded - then break it clean off when i hand it to them.
YOU designed it! I told you that part is sketchy thin! Why you acting like its my fault or the technology's fault?
3d printing has a lot of unfair expectations foisted on it for a few reasons, one being many enthusiasts making grand proclamations about what it should be able to do, others by critics that can't take a balanced view on this one technology (technologies actually) compared to other manufacturing processes.
No other process is expected to turn out usable items with zero post processing, but the mere existence of supports or brims to be removed is a controversial issue to some. Injection molding typically creates items needing cleaned up, machining makes parts that often need followup operations, but 3d printing is always lagging because some people decided its not good enough unless it can do something literally no other method is expected to do.
I want a replicator godamnit!
I think this is a function of shitty journalism. 3DPrinting was the thing my MIL was adamant we had to get our kids into ASAP. Now it's AI. She doesn't understand either of them, not their potential or limitations. Both of them are "the future is now!" technologies.
Ma'am, AI is a long ass math problem, and 3D printers are essentially hot glue guns mounted to a CNC gantry. Most people think they are both new, but they simply aren't.
Well its either that or they take an injection molded part, bend it 90\* and then decide they don't want it because of the stress lines they just put there
I do the 'feel' test with different filament fomulas. Although I'm more interested in surface texture but will put a small amount of pressure around large components I know won't break. Even different formulas of the same compound are noticeable from printing and feel, It's interesting since parts can be simultaneously perceived as both strong and fragile, concurrently.
If you have a couple of nearly done spools you can make physical shape swatches so people can get a feel for tensile strength without breaking your actual prints. I found it's a reasonable distraction mechanism while not having someone break one of your more valuable prints.
This is what people who do not understand 3D printing.Ā I admit I did this with my first few prints and I still occasionally flex prints to determine if I should fill it with resin to stiffen.
I lightly test most of my prints. Partly because I know others will test it as described but I do feel most of the things I print should be pretty durable. I've also printed some tiny parts that turned out pretty durable. It's a lot to do with the temp/layer adhesion.
I have tons of 3D printed stuff on display at my work, people love to pick it up and observe it. Even stuff delicate stuff like the "umbrella in the rain", not a single person has ever tried to "test" it like you're describing. I think you just have weird associates.
Because it's only been like a decade since this was a thing and people can't wrap their heads around physical, 3D object being produced to this quality without a factory in China and 6 months lead time.
Yeahā¦I sell prints and feel like people are mostly just curious how it compares to plastic. Iāve printed thousands of miniatures and still get curious from time to time with different pieces, especially something new that has a potentially problematic spot. I like to see what the tolerances are and whether or not itās likely to survive shipment.
People who 3d print things test them whenever they use something for the first time. It's pretty natural to wanna see how useful something is. It's a fascinating hobby, and if people comparing it to things that aren't 3d printed brings more people in, that's awesome
"Why would someone wanna see how useful something is", why would you even wonder this? Idk if this was just made to encourage discussion but the answer is obvious
The knowledge of anisotropic and isotropic materials is not a common thing, some 3d printer parts are very carefully designed to "be strong" in one direction only so naturally people that are not familiar with "directional strength" just want to satisfy their curiosity by applying random forces to the part similar to how some people bit coins to test them.
Iāll be completely honest, this is probably my reaction as well to stuff like this, but not that that extreme. Interrogating the thing I have been given by testing it seems normal, but just touching it until it flexes to get an idea of itās materials properties is all it takes.
Idk who the hell you are showing stuff two who is just actually breaking it in half. Kinda sounds like your friends just suck, honestly.
3D printing is still novel technology for most people. People tend to poke and prod stuff when they're learning about it. Just look at how overbuilt museum displays are and how durable the buttons and such can be. I'm not even talking about the children's sections.
It's because the idea of making something that is usually industrial with a press of a button at home makes them think "how similar is it to what you buy from a store?"
Funny how when I first bought a 3D printer I started making stuff with CAD and I made them too beefy thinking 3D prints are flimsy. In reality 3D prints are tougher than most plastic stuff because of their internal structure, depending on the infill settings.
It might be a compliment: Maybe it means IT'S WELL DESIGNED.
ie: it's been refined through multiple iterations by people who give a damn, not designed to break just as the next replacement model hits the store shelves.
Also people who want you to use it for use cases it is obviously not meant for and when you say no they go "I knew this was a gimmick."
Like no. The fact that I'm not printing you a replacement securing rod for your jack stand does not mean the whole idea of 3D printing is useless.
it happened once for me. i printed the wingman from apex and they naturally trying to push the trigger and it snapped XD. thankfully only the glue snapped off so it was easy to fix.
i mostly print objects that clearly are not surposed to be bent like minitures and game objects. so most people respect them enough to not bend them
I actually encourage this so they get a feel to it, especially if theyre asking for prints so they know what they can get and that they might not just fall apart from a light breeze
Edit, you might want to print smaller test pieces like plates or such for people to test that dont take much time to replace
I have this issue with my boss. Bought a 14k printer for prototyping etc and then every print that comes off he tries to destroy as he doesn't think it's strong enough.
He recently hit a 5mm thick print with a hammer to prove his point about fragility.
Because people are amazed and are till in awe of being able to just whip something up. I think it is the same thing as when people cook/bake something that is restaurant quality and you tell them it is homemade, suddenly they are skeptical.
My friend once did this when I printed their (relatively fragile) custom 3D model out of PLA, so I had it printed in PC-ABS the next day and they still havenāt broken it.
I have never once had someone attempt to test the integrity of the print. Not even children. I hand my prints to anyone that comes inside because it's generally interesting to most people and they are always super gentle.
Not sure what's going on in your case.
Humans have mental shorts from time too time.
Two examples i have in mind:
"Excuse me. Can you tell me the time please?"
"Sure. Its 3.00 pm."
"This cant be!"
Example two during corona:
I went through all the even more horrendous hygiene step because i produced medicine at the time.
Just too walk in and see my coworkers licking their fingers to flip pages ... of course touching everything.
3d printing creates similar mental knee-jerk reactions.
Print in TPU and watch their amazement
The thought of fine tuning TPU to print a miniature with a spear like OP described is giving me anxiety
I have some tpu, a filament drier and a 0.2 nozzle š¤š¤š¤
It's dark, and he's wearing sunglasses.
š
š„£š
Will a half roll of filament get him to Chicago?
Depends if youāre on a mission from God.
We're putting the banding back together...
Print it!
If you had a multimaterial printer apparently pla doesn't really stick to tpu so you could use it as support?
No, I'll just use tpu supports and hope for the best š
I mean, worst case scenario you can get to cutting and not worry about part of the model breaking with the supports.
At that point you're half of the way towards carving a sculpture, not printing a model.
Which would be even more impressive if we're talking about showing prints to friends and family. "This is 3D printed, and I CARVED IT WITH MY BARE HANDS"
Yep I'll tune tree supports to thr best of my ability, and borrow a surgical scalpel!
I haven't really tuned my PLA supports since when I print my own functional stuff I design around overhangs and bridges, but the last few times I did need them tree support peeled of TPU but left some traces on the PLA lol
I converted an old Weller variable temp soldering iron into a support material removal tool xD took the solid steel tip and forged it into a small blade lmfao, it's amazing.
https://preview.redd.it/gh4jfe6ddjwc1.jpeg?width=4000&format=pjpg&auto=webp&s=4b2100bddabf968a451f9e64f2d6c1920789c532
I dont know if I should be amazed or concerned for your health
I printed something out of tpu that required supports and they came off just as easily as pla supports
I heard PETG and PLA dont stick, so you can use the other as support. They both stick to TPU, so you can print a TPU layer to print PETG on PLA
If you can do PETG, even at a lower than recommended temp, it would probably be an easier to tune support material and also doesn't stick to PLA.
I print dice in TPU, works great. Both normal and 20x.
just print the spear of TPU apart from the mini
I was also amazed by the strength of a 3d benchy printed with 95A tpu. I could not break it without tools :D
One of my cats favorite toys is that lizard dragon with small wings. Printerd in green TPU. Edit: blizzard-> lizard
Oh, you mean an Orlando Bloom.
That safe if they chew it an stuff? I have a cat and I kinda want to print Tpu toys now
I print parts for RC trucks, and anything I want to have some give I just print it in mildly flexible TPU at 100% infill. Shit that would normally snap off in PLA just flex a bit, like screw ears. I something similar with a 1/10th scale Hilux recently. The interior is printed in ToughPLA except for the cage which is painted TPU, and then the body shell there is completely printed in TPU. https://preview.redd.it/m8x7xn6a7iwc1.png?width=1234&format=png&auto=webp&s=8eb51cb4f7e3a3eb5cecbf0309681d1996dee0ea
Is that an early '90s Toyota? My dad had one nearly that color growing up.
Really cool project, I love the hilux!
Never thought about it for something like RC cars but that makes a lot of sense!
High shore tpu is basically invincible. Stuff is crazy strong for not being crazy hard to print.
I love asking people to crush my 30D TPU benchy at work. It's too bad fiberlogy spools don't work with my AMS or I would use it more
You only use the AMS on the X1C or have a system on your v2.4r2?
I currently only have a working AMS for my X1C. I built an ERCF for the 2.4 but it never fit together correctly. The rods got stuck and the belt tensioner snapped the moment I tried to test it. That being said, I wouldn't trust the ERCF to reliably load anything with a shore hardness this low even if mine worked
Oof. Yeah. I am glad I ultimately decided not to do the ERCF. Currently considering selling one of my printers and aquire a bambu x1c but I am rly hoping some companies will innovate and create more affordable filament changing options.
Sovel, anycubic, phrozen, and creality are making mmus rn
I think Fiberology has updated their spools to be compatible
You can just snap those fat round snap-on sides away from the spool, then they fit. They seem to be just some weird decorationsĀ
That's good to know. I always thought they just had their own strange spool mold, but it's somehow weirder that they are wasting all of that extra plastic for cosmetics
Yeah they are definitely weird waste of plasticĀ
I printed my girlfriend a [skull](https://media.printables.com/media/comment_images/ba/c61b98-8503-4d9d-9d94-5cb51bdaf02d/thumbs/outside/640x480/jpg/20240415_104715.webp) out of [flex filament](https://media.printables.com/media/comment_images/57/039faa-28cc-4921-a6af-b9aa9cc4e95c/thumbs/outside/640x480/jpg/20240415_104917.webp) to act as a stress ball. When I gave it to her, one of the first things I did after showing her it was smash it in my hand. She was so startled, as if I had just gifted her something only to brake it in front of her like some weird hazing, I felt so bad in retrospect š
This is the correct answer https://preview.redd.it/muedbvtv3iwc1.jpeg?width=4032&format=pjpg&auto=webp&s=25d996c3afbcb00ce738a22e1e8ce04cde35edbc
I printed a replacement strap for my snowboard bindings and no one could break it with any amount of force it was wild. It was like a quarter inch thick too, it barely stretched at all
Cool, what material? Any pics?
TPU 95A https://www.printables.com/en/model/765077-burton-snowboard-binding-ratchet-strap-for-older-b I don't have any pictures of my actual print unfortunately
That's rad. I used 95A to design and print bolted mounts that acoustically decoupled a compact subwoofer in my car. It worked for the most part, vibrations were dampened. But due to a few hot days, they lost their flex and the bolts started to unthread.
Fuckin kids eh. Little fuckers grab everything and the first thing they try to do, if you made it, is make it break. Excellent prototype testing machines they are though. I printed one of those air basketball models that was the rave a while back, did it so it was about the size of a hardball (baseball), and we played catch with that everyday. You can throw that thing full tilt at a 5 year old and they'll grab it. Probably the single most print I've made as far as enjoyment goes.
My initial thought was no as I print scenery for war gaming mostly. Then got thinking of how I could make a 1 April table for a friendly game. Where everything is wobbly
That's what I did. I printed something from tpu and twisted it and stomped on it just to have it spring back. My friends were so amazed they always ask me to print something for them
I got $20 from my brother because he thought he could break my tpu benchy. Went straight for the smoke stack. Tpu is some awesome stuff and my most popular filament since I fly FPV. Mounts, skid plates gotta love it
This One Neat Trick Will Make Your Tortion Damaged Obsessed Friends Pog Every Time
I think the only reason I haven't had this problem is because I usually print durable functional parts for things like RC cars. If my friend was able to break it just by bending it, it obviously wouldn't work for it's intended purpose. Wait, no, that's not it. I don't have friends to hand 3d prints to.
Noice.
I can be a friend you hand 3d printed things to
Honestly is the best principle.
You had us in the first half
Lol was looking for this reply. "Look at the big shot with a 3d printer AND friends! Next he's going to tell us about his Canadian girlfriend!"
I print combat robots. If they canāt handle being bent they probably wonāt survive in the arena.
because a lot of people liken plastic to being fragile. most people arenāt aware of the structural limits or capabilities to printed partsā¦ heck most people outside the hobby donāt even realize we have different plastic types that have different mechanical properties to them..
Actually, they don't do it on non-printed plastics, as mentioned in the title. I don't agree with this logic, but I am pretty sure they do this because they think "oh you can just print another, it doesn't matter if I break it while testing it out".
right, because they donāt realize the non printed and printed ones are the same plastic type (sometimes). or because it visually looks slightly different.
[ŃŠ“Š°Š»ŠµŠ½Š¾]
^ this. That was my thought too. 3D printing is varying degrees of commonplace for most here but most of the others out the have no idea or way skewed ideas of what's really possible with all this, so they test it out and gain some experience ... at the cost of a print at times.
I think deep down they actually just want to see how easily it breaks because they are slightly uncomfortable with the idea of 3D printing for whatever reason and just rationalize it by thinking they can make another.
>Ā most people arenāt aware of the structural limits or capabilities to printed partsā¦ ...imho. you are overestimating if you think they are aware of structural limits. Most people's knowledge end at "mEtAl sToNk, pLaStic gArbAGe"
the people i usually show prints to are actually super careful with them like the print's going to explode if they look at it wrong. Sometimes if it's something meant to bend i show them that, like a pla stress ball i have (a pain to print)
that hapoens to me because i print things that look fragile, minis for example are technically fragile but they are arent going to explode.
Unless hollowed without holes and printed in resin that is
Just print in polycarbonate. Then watch the fun.
I have a PC plate I printed for leveling the gantry of old Fortus printers that I use for work. I swear that thing has suffered more abuse than any tool I own but it hasnāt lost even a chip or gone out of tolerance in any way. It is definitely the right material for prints that need to be durable.
Never printed PC so far, how does it behave when bent? I just know CDs and DVDs were made out of PC and they shatter like crazy
It's still more likely to shatter than other plastic materials, but the material differences between what amounts to a single flat "crystal" piece of PC like a CD and a filament printed PC part are pretty wild.
One research group had spool of pc and we got some excess it was almoust impossible to tear with hands at in its thin (only 1 layer maybe 0.2mm if i recall correctly) and flexible form of box shaped piece with little bit more plastic on the edges. Also we had part shaped like a frisbeegolf disc edge and you could bend it anyway possible and could not damage it by hands even when really trying. Really great material for its use cases.
Yeah, it's frustrating. I've always assumed it's just people trying to work out how strong a print can be vs manufacturing types that they've known their whole life.
Their monkey brain needs to feel the elasticity and shatter point. Bc my dumbass didn't tell them
I think it's more similar to a baby putting its new toy in its mouth. 3D printed items are novel to most people, and less intelligent humans seem to instinctually react to curiosity by probing without consideration of the consequences.
You: "I just created this thing out of thin air " Them: "Must investigate magic with monkey hands, smush"
This. This right here. Us humans are VERY good at destroying things. Even when we don't intend to. Don't attribute to malice that which can be explained by ignorance. Unless the person is a real D bag then it's straight malice, no cap.
Well on the subject of communication.. instead of telling them how ot was made tell them what material is it from.. Or better yet "careful, it's fragile" before everything. (If it is) People are used to mass produced toys om this day and age. And not nylon.... I'm talking that if you vuy a figurine in a store and the fogure has a thin sword or part it's usually make from a flexible material. So instead of habdling a piece of resin and saying "it's resin" or "it's 3d printed" forget the semantics and add the context. "Don't bend it. Be careful with that it will break".
I would even go with "I made this myself so please be gentle with it"
I had a corporate laptop with a broke "b" key I replaced with "d" when I typed. Luckily, it was only one key, unlike your keyboard!
That sounds dad. Was it the dane of your existence?
Bamn right!
What were the first things you did when you first got a printer and made your first 3D prints?... you test the limits to see if it will be reliable, if it printed properly, and to see how strong it really is compared to traditionally made plastic parts. After you break a few parts you know the limits and stop testing parts in a way that will break them. Yes most people know small fragile plastic will break - but to most, 3D printing is a new concept and they want to compare a printed part to their previous experience with other plastic parts. Even if you know it will break... but will it break in the same way? So just always tell people its fragile and not to test it out by bending it or whatever.
>What were the first things you did when you first got a printer and made your first 3D prints?... you test the limits to see if it will be reliable In my mind I'm imagining 300,000 years of humans testing out sticks to see if they break. Must be in our genes by this point.
Hoomans are strange creatures š
This is so funny to me. My mother asked for track connectors for hotwheels tracks, and when I showed her the first one to make sure it was a good fit she almost snapped it in half. I was flabbergasted.
I have nothing to add but want to point out that edit made me laugh
I gave my wife a 3D printed lightsaber the other day and her first inclination was to flip it in the air like a ninja and accidentally fucking send it into a wall at max velocity. It survived thankfully. https://preview.redd.it/czzeyg255iwc1.jpeg?width=5712&format=pjpg&auto=webp&s=d436068bc49d6c4579a58bbbed34257eaf462cd2
Did the wall survive?
Outside the US drywalls are far from a given, hence the german wall vs. us wall meme. (Hole in drywall, and image of a brick wall with x-ray of broken hand, and text - "come again, i will break your other hand too!" in german)
Did the wife survived?
Remind of the time I got a small piece of aerogel and my friend crushed it because he had heard it was a strong material. RIP my piece of aerogelā¦.
Same reason kids break everything in range - the instinct to update one's internal library of material property intuitions. Just hand them some old support to fk around with first, if you can find any you haven't already destroyed via fidgeting yourself heh.
Print off a couple full sized generative design table legs and watch them break themselves trying to break your print. That stuff can be scary strong even when itās just printed in PLA.
I was just ranting about this the other day. Itās happened with anything Iāve made from prints to furniture to welded steel. Next time someone tells me their coffee table is Ikea Iām going to elbow drop it like Randy Savage.
It's def happened to me. then we get to have the following conversation "why did you do that?" "I don't know, I wanted to see how durable it is" "Now it's broken..."
[ŃŠ“Š°Š»ŠµŠ½Š¾]
For some reason i kept my calibration prints, if i know someone might want to stress test my sculpts i offer them one to test out while they look at the piece
How does it continue?
"I hand-carved this dragonfly out of rare Brazilian tatajuba wood!" /bends wings to see if they flex
Yep. I modeled and printed a complex telegraph key - over two dozen small parts all told. This dude picked it up and twisted it apart "to see how strong it was". What the actual fuck.
I saw that on Thingiverse! I printed it, too! You are brilliant!!
Much as I appreciate the compliment, I can't take credit for the one you printed (I didn't put mine up on Thingiverse). This was the one I made: https://preview.redd.it/ri3fbc63lmwc1.jpeg?width=3264&format=pjpg&auto=webp&s=c149a3996cfd36b3455ebf6cadc1218483676e1a
I love it.... and you're still brilliant!
*You learn a lot about a thing by understanding how it fails.* I think that was from a system engineering or electronics book. But I guess it holds for plastic as well.
Sometimes I give people really difficult to break prints and watch them struggle to do anything to it. So something small, pokey, and made of the finest TPU 65A or ABS-PC I have. Itās really funny watching them get mad when it pokes them, they try to break it harder, and they only get more poked
It's the best test
I have never once had someone try to destroy a print Iāve handed to them. Have you considered that the people might be the problem?
I mean asking someone how strong and actually testing yourself can be two very different things. My really strong is different from yours but ya shouldnt just go bending. Its just a thing people do. People prefer hands on testing even when they shouldnt. I work alot in the swim industry and the high end suits are like compression suits which can easily rip yet when you tell people that the first thing they do is gonand yank and stretch them.
We produce hydraulic seals in complete traditional way...first thing people do is bending and twisting them. So it is normal.
Why? Because people are stupid.
These will feed their need and shut em up. https://www.thingiverse.com/thing:775265
Kind of disappointed though, thought of something like this: https://www.printables.com/de/model/271086-solid-block-challenge
Iāve never had this problem. Maybe you need better people.
This absolutely happens regularly to me. It drives me INSANE.
I printed big ass functional bearing just for that, they can touch all they want š
This guy I work with just crushes prints in his hands accidentally somehow. Heās a big goofy dude, you just cannot hand him anything remotely delicate.
bro is working with wreck it ralph šš
Actually the best analogy for this guy lmao. Heās so innocent but he breaks everything.
This is quite the phenomenon. I am guilty, before getting my printer, i was at a wedding that had plastic charge plates. So of course i picked one up to see how flexible it was and broke it clean in half. Also still find myself testing my own printed parts now although with a bit more caution
I stopped handing things I make to my spouse for this reason. She just canāt help herself
Monkey brain go to smash mode when handed new item. But for me it's cool since I try not to make a fragile part unless specific for something. 1st print I do is how well does it look 2nd print (if 1st passed) is how well does it hold up. Sometimes the easiest way was to see how strong something is, give it to someone else to look at
Yeah Iāve had coworkers do the same thing. Multiple people basically try to break itā¦. Kinda depressing if you ask meā¦
It's just human nature of unintelligent people I think dude. We're all naturally curious and first hand results are always way more appealing that second hand descriptions. Dumb people forget about the element of respect and just go straight to the first hand result.
> It's just human nature of unintelligent people I think dude. Also of intelligent people, some are just too curious to figure out how a material behaves. I don't think anyone here in our company that does high end 3D printing has anything lower than a master's degree, most have a PhD in 3D printing, and yet when newly developed parts are handed around during a meeting it generally takes only a minute before your hear "[SNAP] oops sorry, did you still need that?". Plastic, titanium, ceramics, I've seen them destroy anything and everything out of sheer curiousity
Stop printing dildos, and this will stop happening.
LOL
I 3D print all of my friends.
I printed a ball within a ball for someone at work. They were super impressed for 20 seconds and then threw it against the wall so it would bounce off and they could catch it...... It split in half and he looked at me like I was the fool.
Adam and Eve would never would have known the existence of the forbidden fruit if God didn't tell them about it .
I have printed the pink panther torso a few times and it always gets me that almost without fail the person I hand it to will put both thumbs on the breasts. Male or female - doesn't matter.
My guess could be cause they want to get a feel for the material. When i got my hand on something relatvely thin metal printed titanium, bending it (very carefully) was also my first instinct.
Can confirm, was showing a fellow classmate at school a power bank I recently finished, and within 20 seconds he smashed it lid first onto a wooden pedestal. Thankfully he only knocked the battery loose, and did 0 visible damage. Most of the time, though, they treat the things I hand them with respect.
Did you subsequently smash his face into saidbwoode. Pedestal?
Nope, although I was thinking "WTF was his thought process here???"
They don't understand the process of designing, supporting, calibration, printing and post processing plus the cost of materials and time invested, they view it like a printed paper that you can just send to the printer in no time at virtually no cost
> "WTF was his thought process here???" Answer: "I can actively destroy the property of other people without facing any consequences"
Print a hedgehog.
I like to pick a 3D printed thing and bang into the desk when someone asks if its strong
Thats because a lot of people print fragile and very breakable non functional things to save on print time and material. I mainly print functional parts so this isnāt an issue but I know of people who print really fragile stuff that just looks and feels cheap.
Not sure, this never happens to me. In fact, most people get more timid about holding it.
I do it to myself... Things I've printed. š¤£ I think because it's new and quality varies wildly. It's the same genes that after tightening a ratchet strap and the obligatory "that'll hold it" comment
It's the "I know Kung-Fu" test. You tell that to anyone and the first thing they do is immediately put up a fighting stance and try to attack you playfully. One of the most time tested jokes is your friends simply going "nuh-uh" to anything that's slightly impressive. Back to the point. They just simply can't believe the future in which you can have anything made in the palm of your hands and they just wanna test it like "Whatever you want being made for free? Nuh-uh!" and then it's breaking time.
Itās also because they think itās really easy to print another one. āIts disposable and freeā
Probably the thought of the 3d printed thing is not something you bought with money and print as much as you want. I blame all the sci fi shows
Hell, i 3d print the shit out of shit and still evetytime i hold a piece i try somewhat to break it. Of course if its a miniature or something i dont, but i work in manufacturing and we use 3d printed parts for all sorts of shit and i am constantly baffled at how durable this shit is.
Ask them to do the bend test with their phone.
I think it's because it's the first time they've ever held a 3D printed object in their hands, and the monkey-brain instinctively wants to test out this new thing in the world.
I think people probably assume that since you didnāt buy it that itās free, not accounting for how long you waited for the print, or how much you paid for filament, or how much the printer was lol
I had this happen with a simple monitor stand. Gave it to buddy, buddy immediately stands on it. It supported him but like damn bro, it doesn't have to be THAT strong
Honestly not an issue I've had. But whenever I show people anything 3D printed I always give a breif run down of how it's made, weaknesses and strengths. And use case of whichever filament I used. Ignore the people saying you need better friends etc. But better communication before letting people touch is definitely a good shout.
Kinda related, I once handed someone a 3DBenchy for them to look at and they pointed to the āCT3D.xyzā on the bottom of it and asked something along the lines of āis this the code that makes the 3D printer work?ā I was so flabbergasted at how dumb that question was that I had to ask for clarification then pause for what felt like an eternity before explaining that itās just the website that belongs to the person who designed the 3DBenchy. I get that the concept of 3D printing is complicated for those who are not part of the hobby or industry, but some people ask dumber questions than others.
Easy to solve, donāt interact with other people haha
How else do you gauge strength of a material?
it happened to me so many times. My dad always try to bend my 3d printed stuff, it drives me crazy...why?!
I don't know if you've ever seen this, but little boys will actively, vigorously try to kill themselves or the other little kids around them all day, every day.Ā Your job is to protect them from themselves long enough to survive those years, and make it into adulthood. So, this desire to wreck stuff, or at least test its limits, is a remnant of their thought processes earlier in life, is my take on it.
I see your point, thats why now when i show my dad a new print i say: "Dont break it, theres no need to" and he says: "I will try not to, sorry". But thats how they are "coded", just like you said,
Tbh. i can understand that. People are extreme curious, which is why military boobytraps frequently use "strangeness" as the bait. ...i will one up you! What i REALLY dont get (and what really irks me) is "designers" draw up a model with close to zero wall thickness around holes - well it should be fine since that part is unloaded - then break it clean off when i hand it to them. YOU designed it! I told you that part is sketchy thin! Why you acting like its my fault or the technology's fault?
3d printing has a lot of unfair expectations foisted on it for a few reasons, one being many enthusiasts making grand proclamations about what it should be able to do, others by critics that can't take a balanced view on this one technology (technologies actually) compared to other manufacturing processes. No other process is expected to turn out usable items with zero post processing, but the mere existence of supports or brims to be removed is a controversial issue to some. Injection molding typically creates items needing cleaned up, machining makes parts that often need followup operations, but 3d printing is always lagging because some people decided its not good enough unless it can do something literally no other method is expected to do.
Yeah, average Joe just open a box and it is ready. Post processing? What is this an Ikea furniture?
I want a replicator godamnit! I think this is a function of shitty journalism. 3DPrinting was the thing my MIL was adamant we had to get our kids into ASAP. Now it's AI. She doesn't understand either of them, not their potential or limitations. Both of them are "the future is now!" technologies. Ma'am, AI is a long ass math problem, and 3D printers are essentially hot glue guns mounted to a CNC gantry. Most people think they are both new, but they simply aren't.
Well its either that or they take an injection molded part, bend it 90\* and then decide they don't want it because of the stress lines they just put there
I do the 'feel' test with different filament fomulas. Although I'm more interested in surface texture but will put a small amount of pressure around large components I know won't break. Even different formulas of the same compound are noticeable from printing and feel, It's interesting since parts can be simultaneously perceived as both strong and fragile, concurrently. If you have a couple of nearly done spools you can make physical shape swatches so people can get a feel for tensile strength without breaking your actual prints. I found it's a reasonable distraction mechanism while not having someone break one of your more valuable prints.
This is what people who do not understand 3D printing.Ā I admit I did this with my first few prints and I still occasionally flex prints to determine if I should fill it with resin to stiffen.
Because a lot of people aren't familiar with 3D printing and are curious how it compares to traditional manufactoring methods
I lightly test most of my prints. Partly because I know others will test it as described but I do feel most of the things I print should be pretty durable. I've also printed some tiny parts that turned out pretty durable. It's a lot to do with the temp/layer adhesion.
I have tons of 3D printed stuff on display at my work, people love to pick it up and observe it. Even stuff delicate stuff like the "umbrella in the rain", not a single person has ever tried to "test" it like you're describing. I think you just have weird associates.
Because it's only been like a decade since this was a thing and people can't wrap their heads around physical, 3D object being produced to this quality without a factory in China and 6 months lead time.
Yeahā¦I sell prints and feel like people are mostly just curious how it compares to plastic. Iāve printed thousands of miniatures and still get curious from time to time with different pieces, especially something new that has a potentially problematic spot. I like to see what the tolerances are and whether or not itās likely to survive shipment.
People who 3d print things test them whenever they use something for the first time. It's pretty natural to wanna see how useful something is. It's a fascinating hobby, and if people comparing it to things that aren't 3d printed brings more people in, that's awesome "Why would someone wanna see how useful something is", why would you even wonder this? Idk if this was just made to encourage discussion but the answer is obvious
The knowledge of anisotropic and isotropic materials is not a common thing, some 3d printer parts are very carefully designed to "be strong" in one direction only so naturally people that are not familiar with "directional strength" just want to satisfy their curiosity by applying random forces to the part similar to how some people bit coins to test them.
Iāll be completely honest, this is probably my reaction as well to stuff like this, but not that that extreme. Interrogating the thing I have been given by testing it seems normal, but just touching it until it flexes to get an idea of itās materials properties is all it takes. Idk who the hell you are showing stuff two who is just actually breaking it in half. Kinda sounds like your friends just suck, honestly.
*Heat insert that very same hand that bend the spear.
The quality can be quite variable from one mans printed items to another's.
3D printing is still novel technology for most people. People tend to poke and prod stuff when they're learning about it. Just look at how overbuilt museum displays are and how durable the buttons and such can be. I'm not even talking about the children's sections.
It's because the idea of making something that is usually industrial with a press of a button at home makes them think "how similar is it to what you buy from a store?" Funny how when I first bought a 3D printer I started making stuff with CAD and I made them too beefy thinking 3D prints are flimsy. In reality 3D prints are tougher than most plastic stuff because of their internal structure, depending on the infill settings.
What CAD program are you using?
It might be a compliment: Maybe it means IT'S WELL DESIGNED. ie: it's been refined through multiple iterations by people who give a damn, not designed to break just as the next replacement model hits the store shelves.
Also people who want you to use it for use cases it is obviously not meant for and when you say no they go "I knew this was a gimmick." Like no. The fact that I'm not printing you a replacement securing rod for your jack stand does not mean the whole idea of 3D printing is useless.
it happened once for me. i printed the wingman from apex and they naturally trying to push the trigger and it snapped XD. thankfully only the glue snapped off so it was easy to fix. i mostly print objects that clearly are not surposed to be bent like minitures and game objects. so most people respect them enough to not bend them
Neither of those things are meant to be bent...
I actually encourage this so they get a feel to it, especially if theyre asking for prints so they know what they can get and that they might not just fall apart from a light breeze Edit, you might want to print smaller test pieces like plates or such for people to test that dont take much time to replace
āI was just curiousā. Still a bit novelty
3D printing is still new for the majority of people and they dont know what its capable. Therefore they are curious
I have this issue with my boss. Bought a 14k printer for prototyping etc and then every print that comes off he tries to destroy as he doesn't think it's strong enough. He recently hit a 5mm thick print with a hammer to prove his point about fragility.
Because people are amazed and are till in awe of being able to just whip something up. I think it is the same thing as when people cook/bake something that is restaurant quality and you tell them it is homemade, suddenly they are skeptical.
My friend once did this when I printed their (relatively fragile) custom 3D model out of PLA, so I had it printed in PC-ABS the next day and they still havenāt broken it.
I have never once had someone attempt to test the integrity of the print. Not even children. I hand my prints to anyone that comes inside because it's generally interesting to most people and they are always super gentle. Not sure what's going on in your case.
3d printing has always been seen as not as good as injection molded parts because 3d printed parts if done badly can be pulled apart.
Humans have mental shorts from time too time. Two examples i have in mind: "Excuse me. Can you tell me the time please?" "Sure. Its 3.00 pm." "This cant be!" Example two during corona: I went through all the even more horrendous hygiene step because i produced medicine at the time. Just too walk in and see my coworkers licking their fingers to flip pages ... of course touching everything. 3d printing creates similar mental knee-jerk reactions.
That's the new term I needed, " terminally online". Thank you.
I donāt know about you, but I got into 3D printing to do useful stuff, that needs to be strong enough for what I want it to do.
Place a "WET PAINT" sign and see how many people touch it on purpose.
Hahaha to the terminally online comment. IDK why but this is common for my friends too. At least the first time
I do that myself with my own prints. I ask people to try and break it. I mostly print stuff that is used and might accidentally incur some force.