Ph.D. Chemist Explains 3D Printer Resin
HTML-код
- Опубликовано: 29 сен 2024
- Resin SLA printers use ultraviolet light to turn liquid resin into cool solid models- but how!?? We're gonna talk about the ingredients of these resins, we're gonna do an introduction to photopolymerization, we're gonna do some mythbusting, and we'll even talk about chemical safety and disposal!
More Goobertown!
Patreon / goobertownhobbies
Instagram / goobertown_hobbies
Twitter / gthobbies
Paint Bravely The Podcast- on your podcast app and / @paintbravelythepodcast
***************************
Products I Frequently Use!
Paint Vallejo Model Color amzn.to/3nGYKB2
Paint Vallejo Game Color amzn.to/2IIPJJ7
Paint Game Color Extra Opaque amzn.to/3nAKWrG
Washes from Army Painter amzn.to/37ljEiT
Paint Rack (wall mounted) amzn.to/3313da5
Chair (super comfy) amzn.to/2ITqZh5
Lamp amzn.to/3kXjaUI
Airbrush Kit (compressor with tank) amzn.to/364KBb7
Airbrush Primer (stynylrez) amzn.to/3o6J5eP
Inks FW (intense colors that airbrush well!) amzn.to/2JaHvJm
White Ink (smooth zenithal highlights) amzn.to/2Hyuwkl
3d printer (Creality) amzn.to/39a0lvn
3d printer (Elegoo) amzn.to/33cKSXm
3d printer BIG (Anycubic) amzn.to/2UYcKKt
Resin (Anycubic Eco) amzn.to/3pY1E6m
Camera amzn.to/390PbZI
Lens amzn.to/33eKdER
Camera arm amzn.to/3l5jJMh
Lighting amzn.to/2HhCTRc
Microphone (youtube) amzn.to/3m4Njmj
Microphone (podcast) amzn.to/3fyfoQp
Stereo Mixer amzn.to/3nUgOrD
Glue (plastic cement) amzn.to/2JdNpty
Glue (superglue) amzn.to/3fwiwwa
Brent of Goobertown Hobbies is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com
Hey All! It's been brought to my attention that I conflated a couple of different safety ranking systems- some count up from 1 to 4 and some count down from 4 to 1. With or without the numbers, you can trust the words in the SDS sheets to steer you right. My overall "respect the resin but don't fear the resin" viewpoint remains. For more info:
www.acs.org/content/acs/en/chemical-safety/basics/nfpa-hazard-identification.html
www.osha.gov/Publications/OSHA3844.pdf
@Tzuede Off the Cuff Check with your Waste Management organization. In my town they have one Saturday a month you are can drop off hazardous substances like old resin, it's something they don't advertise a lot, but you can found out pretty easy if you call.
question brett: I live in a studio flat with limited ventilation options at the moment, but I brought my Mars with me because I read enough about the risks that i thought I could work something out. Is this a dangerous line of thinking? Should i permanently have my windows open?
This is excellent. Would you make more chemistry videos please?
@@einekleinerockmusic8152 there are 3rd party designs for activated carbon filters and/or exhaust tubes to vent all the fumes outside without having to keep the window open.
Sort of channeling the same feeling you being a chemist, I find myself working with resin sort of the same way I used to work in microbio labs. Always assuming surfaces are "hot", trying to minimize stray messes even if the rest of my hobby space is in shambles, etc.
Thanks for the lesson, teach. I am now less dumb :)
That's what I like to hear! ;-)
I feel much dumber to be honest. The stuff you don't know you don't know.
@@emceha but that's timeless wisdom you've acquired, it applies to everything 👍🏻👍🏻
Samezeez
Piss off checkmark cringeboy
Awesome video mate! even for a non native english speaker, I understood well what you said. your voice and the quality of sound is very clear.
It remined me my organicc chemistry classes :)
Are you a teacher? if not, im sure you could make a great one.
keep up the good job! you won a follower
Very well spoken. Thank you very much. This helps my conscience moving from FDM to SLA and gives me some ammo to calm my wife about the overall resin toxicity,
A big thank you Sir for all these explanations and warnings! This was perfect ! Thank you for your work and your time ! :)
I didn't have a lot of time to watch this when it came out. I'm glad I came back to it!
Have you tried any of the water-washable resins?
Just clicked on the video thumbnail so you will stop staring at me 🤣
That thumbnail - im freaking out man!
Great video brent thanx, how about how to dispose of the water with these new resin water washable resin??
Amazing video! Thank you so much!
UltraViolent light
-Goober, 2020
I was hoping you'd start delving into the chemistry of the hobby. Thrilled to see. Humbly; more please!
more! :-)
@@GoobertownHobbies DEFINITELY more please! Pretty please with a C30H31ClN4O7S cherry on top!
Definitely more!!!! (please)
Yeah great vid. Thank you so much. Also would love more vids on resin, like for example showing professional workflow whith resin printing, or telling something about common myths like overcuring, or savety issues with cured prints. ❤️
I feel like Brent could actually teach me to understand chemistry. Like the Mr. Rogers of chemistry.
Hehehe, I'll keep trying! :-)
I definitely got a strong Mr. Rogers vibe somewhere in the middle of the video. Lol
I perceive him more as the Bob Ross of miniature painting.
Me too! I didn`t understand chemistry on the school
UNCLE BRENT! Mannnnnnn, you just brought the INFORMATION with this right here! I had to let you know I appreciate how much you put into this.
Top-notch production value, vocal delivery, and comprehensiveness.
P.S. The only PhD I have is my post-hole digger. Bigtime respect to you, sir.
i love watching both your content so happy that the content community support each other so much mad love to The CrafsMan and Brent
Whoa it's Crafsman
Uncle Brent be steadycraftin
Keep on steady craftin
This is magic. It’s like that DC/Marvel crossover from the 90s. I love these guys.
I would really love to see a new video talking about water-washable resins and how they differ chemically from traditional resins that are washed with alcohol.
Probably not much. Would imagine the difference is probably just that ingredients are more water soluble so the sticky mess can be washed off with water. They should still not go down the sink or your throat because they aren't any more healthy because of that.
Pretty much what I've learned. The only thing you get rid of by using them is the alcohol.
Other than that they're supposedly just as toxic.
@@ralfsstuffAt least you save the expense and small hazard of alcohol. You don't have to careful how you much use to clean your part either.
Goobertown is now both the most wholesome mini painter, as well as the most relaxed chemistry teacher!
Just finished watching it: really educational and well formatted, brilliant video!
Is it mean that I just assumed you were just a gooby Goober? Now you're a whole doctor Goober, I dont know what to believe anymore...
What a wild and crazy world! :-)
Hi Brent! Chemical Engineer here, and I want to thank you for this video. You've done what many teachers struggle to, tie complicated science to everyday fun (in this case a hobby we viewers all share). Bravo you beautiful goober!
Hehehe, thanks buddy! :-)
i turned 50 right now, and some youtubers become my new teachers. this is so relaxing to listen too. Brent would be my dreamteacher :)
A lot of the best teachers arent teaching in a traditional classroom environment.
Honestly I wish you were my organic chem teacher. This was to the point and unintimidating and the friends I showed this too that have no background in chem were able to get it. I'm glad to have someone like you in this hobby space
This is brilliant. I will have to watch it a few times to really absorb the information, but thank you for making this kind of content.
My man!
wait wait, you were DOCTOR goober this whole time??
the whole time!
Doctor ~ Mad Scientist ~ not much to tell between the two.
@@Raven.flight oh yeah, there's a big 'ol overlap in that ven diagram
Suspected as much after his explanation of super glue. I have that same molecular model kit btw 😁
@@casperjanowski8187 Orks, I suspect.
Brent is in his element talking about chemistry. HAHAHAA
oh no... ;-)
You could say he makes chemistry... elementry. his videos are... periodic. I'll go hide now sorry
I see what you did there. :-)
That's very punny.
Cuz SCIENCE!
Hey, awesome video.
Quick question: Once the part has been printed, you're supposed to shine a UV light on it to fully harden the part. How does an opaque resin print get cured on the inside since the UV is only hitting the surface of the part? Wouldn't the pigment block the UV? Would transparent resin be more effective at curing evenly?
Thanks
appreciate the safety segment especially since its kinda hard to find info on resin safety. One thing that would have been awesome is a safety comparison to other household chemicals. How does it compare to dish soap or bleach for example? im still kinda scared to get into resin 3d printing because i got a feeling it could end up being like asbestos where people think its generally safe but it hasnt been explored enough yet to confirm its safety.
Same here! My wife is very paranoid about the fumes. That's why the elegoo 8k is in an ikea enclosure out in the garage! 😂
Just need more activated carbon in my life I guess. 😂
@@helixxharpell For example I recently found out that huffing primer fumes has a noticeable long term impact on your health. I just got a gas mask (which are surprisingly cheap) and havent looked back. Still not eager to start 3d printing due to the excessive time investment needed to get it working how you like tho
@@pepi560Spray fumes have been known to be bad for a very long time.
Like brent mentions in the video as long as you do it in a ventilated area and youre not standing there sniffing it for hours then resin will be fine.
I've explained this channel as "Bob Ross does Warhammer", and that comparison becomes more true every video. Love you man
I love how this starts out as a fun and engaging lesson in polymers and stuff I remember from high school and then sharply ramps up to Brent decoding trade secrets of major chemical companies and showing how you can make your own resin out of soybeans, no big deal.
Hehehehehehe :-)
Channel your 90's self and let's talk RADICALS!
Righteous!
Tubular!
I learned more about chemistry in this 30min than I have in my entire life. The way you introduced things simply and built on them with the actual science was very easy to make sense of. Thanks for the great video that answered every question I could think of in great depth.
yes. I wish I had Brent as a tutor when I was taking Organic Chem as an undergrad.
Wow. This was sitting in my "Watch Later" list for a while, but now I can't believe I didn't give it a go earlier. This was so good!
thanks for watchin! :-)
Normally I watch the painting videos whilst my chemist girlfriend sits and pretends she's interested. Today, she's nodding and providing commentary whilst my head melts. Cheers, Brent! Keep up the good work.
This is true. Brent is now for sure my favourite model person :D
Hehehe, hope she approves! Have a great weekend you two :-)
I relly enjoyed this episode. Wish you could do more (especially Goobertown Roulette) . I listen to Paint Bravely, but, am more visually inclined. I am starting to paint again since my accident, and enjoy the tips and info that you include. Thanks.
Glad you liked it! next episode is a roulette ;-)
Yeeessss! Thank you, Brent (Dr. Goob!)
So.... you're telling me not to drink it?
Why would they make it in all these delicious colors if we weren’t supposed to taste it?
Im a Mechanical Engineering student and from now on this is the only way I accept to learn chemistry. Thanks Dr. Goober
Hahahaha, I better make some more vids! :-)
I'm here for the continuing education myself. Not a lot of chemistry classes in electrical engineering.
Don't forget NileBlue/NileRed and Explosions&Fire.
Only painting Jesus would make me want to watch a 30 minute chemistry lecture.
muahahahahah
This is the same process they use to make microchips. I used to work in the photolithography area working on Electron microscopes and on the lithography machines. I did the photo resist qualifications as well. Those chemicals were the same as these chemicals on a much much smaller scale. They make patterns that are only microns wide. They hold patterns that are smaller than the wavelengths of light used to expose them. We used a lot of IPA to clean these things up too.
I've got a few friends who work in that field, it's such crazy awesome stuff!
@@GoobertownHobbies it was fascinating. I was a huge process nerd. It's really cool seeing the technology being commercialized like this. It's a good example of better living through science.
Can you do a video on the best way to recycle IPA? I've seen videos using water distillers, but I want to hear your expert opinion. I'm concerned about fumes, and even flammability .Thanks
“Like in Fight Club...” This magnificent video showcases several of the reasons that you are AWESOME. As someone who really had to slog his way through AP Chemistry in high school and then go get his PhD in the biological sciences because chemistry is too mighty, I appreciate the effortless way you broke this all down for your fellow hobbyists. Many thanks...
I chortled at that line too. And yeah, good stuff!
"This isn't even my final form!", Oligomers, probably
Most underrated comment Sir. GG
i feel more educated while enjoying hobby. keep it coming!
"don't drink resin" thanks doc
happy to help!
@@GoobertownHobbies Can I drink it if I shake it first?
Just a taste?
Ah...what a wonderful video. As a science teacher and one who had apprentices in chemistry laboratories, I got to say, this is inspiring and gives me new ideas on how to break this down. Thank you!
Nice! It can be hard to find the right level for your audience- good luck!! :-)
That is so true. Thanks
this has a thesis-ish quality to it
I'd love to hear more chemistry stuff from you. Great stuff
An episode you CLEARLY only created for the clicks. "Ph.D. Chemist Explains ..." Really? Just to get all the cool kids click on it? That low? I am officially disgusted, sir!
Good Work Brent, as always :)
;-)
Great job explaining! PhD in oncology here and man I wish all my chemist colleagues are able to explain as clearly as you can! 👏🏼👏🏼
"If you can't explain it simply, you don't understand it well enough"
I think I have learned more from you Brent than my highschool chemistry class.
hehehehe :-)
Waiting for my Anycubic Photon. This has helped me so much! Thanks for taking the time to edumacate me!
oooh, have fun! :-)
I wish I could have taken polymer chemistry in college, but my schedule just wouldn't make it work!
16:25 That's a quite happy molecule on the bottom left.
But after UV light it gets surprised.
=)
Jokes apart, good video. =)
BTW: you can filter alcohol with cheese cloth/filters, after letting the dissolved resin polymerize.
After that you let dry the resin stuck in the filter and remove it by hand.
The first rule of ingredients is: You do not talk about ingredients!
Bit late to the whole 3D printing party, but really enjoyed this!
I can't believe how much fun I had watching this video! Specially not being a chemist I could understand everything and it was extremely educational and... fun! I'd say this is in my top3 of your videos
Hey glad to hear it! :-)
here's a interesting history: as up to today I believe dental resins are on the 9th generation, one of the biggest problems of resins is resistance to compression, they are quite elastic but compression is the enemy when it comes to biting forces, by the 5th generation 3M fixed a lot of the issues by introducing microclusters which are conglomerates of polymers that form spheres bigger than the normal polymer chain, this created strong points for the resin to anchor on, as soon as other companies started to copy the technology 3M started to lawsuit the other companies as this was their proprietary technology. to fix this company instead of developed micro monomers, which means that they where just bigger monomers to act as anchor this circumventing the microcluster debacle. arguably microclusters is a better technology because they are the same monomers only arranged in a different format and this has been a great development on resin technology. I wander is this particular technology is present in 3D resins, granted you shouldn't squish your miniatures but who knows.
Squishy minis would be fun! I took a tour of the 3M facilities in the St. Paul area, they actually have a science museum there all about materials they've been developing- they've got so many crazy cool technologies that they work on, and one of their big divisions is dental tech.
Imagine the look on your dentist face when you show up with a pre-printed crown or tooth implant with an imperial aquilla on it. Can't wait for dental grade 3D printer resin.
to be honest about 4 years ago a company designed a burn up resin, this means they could 3D scan a carved tooth plaster model and designed a crown to perfectly fit this model then they just create a negative space in a mold by melting the rest away and filling it later with whatever material you need, pretty neat basically is lost wax method but with a perfect resin model instead of a hand carved one
you could totally make a tooth crown with an aquilla incrustation now, just need to find a lab technician dextrous enough to craft it
Hey Brent, I just had to say how impressed I was by this video. I'm a teacher by trade and your ability to explain things clearly as well as simply was fantastic! Personally I felt that I wasn't being talked down to and my schema pathways started to reopen back to my days sitting in Senior Level Chemistry at high school. Ka pai!
"Normally visible light can't start chemical reactions."
Outside that normal: Azadoazide Azide + Light = Explosive decomposition... "The sensitivity of Azidoazide Azide is beyond our capability to measure it."
Hehehe, I went to the hospital once because of a diazide. :-)
Had to test my blood pressure this morning, and I knew exactly what channel to turn to , to get it down to the rest value in no time. Nothing cures hyper tension than that voice.
Thanks for the super informative, educational, and relaxing video!
Have a super chill and relaxing day! :-)
Listening to this guy, I always thought "He is way smarter than I am, I am sure of it." After finding out that you're Dr. Goober, I have been proven correct.
;-)
So cool to get an explanation from someone that knows his stuff 😁
I'm not a miniatures guy, but I really appreciate the clarity of your chemical explanation videos. I would totally subscribe to a dedicated channel for that stuff, if you feel so inclined. Keep it up! And thanks.
Such a great video! The chemistry talk is *infinitely* interesting, and the disposal tips and safety info at the end was perfect. I love this channel so much. Thanks, Brent!
Currently getting my PhD in chemistry and always wondered how 3D printers worked but was too lazy to look it up. Thanks for making this video!
Perfect! :-)
"...those are unstable and reactive..."
Well call me radical baby, cuz that's ME
its not often you see someone visibly enjoying conveying complex(ish) information. Thanks goobertown. Thanks for the info, thanks for the smiles :)
I'm thinking about buying elegoo's water washable resin. Now I know not to dump the water down the drain, but how does one deal with it? It won't evaporate as fast as alcohol. Does the same process of decanting apply? and if so, is it then safe to dump the water?
cure the water/alcohol solution strain the solids and pop the solids into the bin and then reuse the liquid.... i'm testing my liquid as a weed spray
I think I've seen this video before, but I like to learn and he's a wonderful teacher.
Thank you for this delve into the chemical properties of differing resin compounds. I very much appreciate seeing not only the various behaviors of each component in the resin, but the significance of thier inclusion for the process of polymerization.
Great chemistry lesson - I would love to watch more.
To what extent is the plant based stuff more biodegradable than the other resins? I mean in the landfill, not compost.
Really been getting into this hobby lately - This explained a lot that I didn't understand. The community has done a great job supporting it across many facets, but the most common thread is "don't pour anything down the drain".
Thank you for this video, really aligned with my current hobby process.
I was already subbed, but honestly, this is such a nessesary video for the 3D printing hobby. Every few months I get very scared of resin, so coming back here to understand it better is a hugely beneficial thing. Thank you!
Oh man - You and I are fascinated by the same stuff! But you KNOW the stuff, and I am just a wannabe! I LOVE this video, and I can see me binging on your other ones very soon..
I've been really enjoying these videos you've done on exploring the chemistry of the things we use every day in our hobby without even thinking about them, they've been entertaining and informative - what more could you want?! I also love that you've used one of the Combat Wheelchair sculpts as the demo print in this video.
Glad you like these! I love making them :-)
@@GoobertownHobbies you should do a side channel on chemistry. I know I'd sub!
Dear Brent,
Thanks for that video, I love your stuff and I found this video due to research for Resin safety. Maybe you could help to answer: Is there a 3d printable UV Resin that is safe to use in an Aquarium? (Fully washed and cured) Or do you think the eco resin could be safe (there are ISO for toy safety on the website )? I would like to print some stuff for Aquariums but I’m no chemist Thanks regards Sascha
Thank you very much for the excelent content you provide us.
Could you make a video on protection equipment? For example, what kind of respirator filter should we use for resin / IPA / airbrushing?
The short summary:
Imagen that resin is like LEGO bricks... excerpt they are magnetic. You just drop a handful of each colour you like in and hope that they align in a way that is beneficial for you.
There's some merit to this analogy!
Even better, they are electromagnets, so you mix all the bricks together and then flip on the power (the uv or whatever starting the polymerization) and they all snap together. then.
"Hmmm, I have this bottle labeled 'azidoazide azide' with my resins. Let's give it a good shake, and see wh-"
Someday I'll tell you about the time I synthesized carbonyl diazide CO(N3)2 and took a trip to the emergency room ;-) They got most of the glass out of my arms and torso!
@@GoobertownHobbies Re:"Things I Won’t Work With" (Lowe) ;-) You know, ordinarily even one azide functional group present would suffice for me not to ever touch the respective compound...
Thank you so much for all your videos! I really enjoy them :)
Ich wusste nicht, dass Miniaturen dich interresieren. Spielst du Warhammer 40,000?
@@LastStar007 Ich spiele Dungeons and Dragons beim RUclips Kanal "W20 Show" und privat :)
Would be awesome the same exercise but with recycling IPA. After many cycles of photo-cleaning the residue dissolved, precipitating it through UV exposure, the IPA become sticky and loses the capacity to proper cleaning. Do you know how to extend its lifespan even further, without re-distillation or other energy and time intensive, or law forbidden (in many countries distillation is), using fine chemical processes?
The best way to clean resin out of isopropyl alcohol is to distill it. Get a $50 water distiller and fill it up with the dirty alcohol. Set it up outside away from structures, and then let it run with an appropriate size container under the spout. The alcohol will come out crystal clear, just like when it was new. All you need to do is wipe out the inside of the distiller pot and you're done. No more filters or cheesecloths or other gadgets, the distiller is the best solution.
Nice overview. Just to add one important safety tip:
If you get resin on your skin, never clean it with alcohol. The alcohol will only dilute the resin with a higher risk of absorbing parts of the resin in your skin.
Use paper towels to clean of most resin, wash with water and soap and only after this use a wipe with alcohol if you need to.
For safety always wear (safety) glasses and optionally a mask or a full face mask
I remove it by soaking my hands in Xylene witch works great. Etanol is cancerogenic so I try stay away from it.
I am not at all surprised that Brent is a chemist.
This video is destined to be the new nap time soundtrack for Thor (my one year old son). The previous videos were the pile of shame and the social justice videos. I love the content and Thor loves your voice. Thanks Brent! Keep the science deep dives coming.
Nice! I'm honored to help with the raising of Thor :-)
I really hope someone (Goober?) can answer my question because these questions have been bugging me for months now:
1.) There are resins that claim proprieties like flexibility, "ABS properities" or food safe. How are these properties achieved and how is their longevity? Are these just plasticizers/fillers which sublimate/evaporate over time or these properties linked into the polymer chains? So does a flexible resin stay flexible its "whole life"?
2.) Are resins once cured thermosets or are they categorized to a different polymers category?
Thank you to anyone who can answer these questions and if you have resources to read up upon that would be great.
There are different types of mask filter- What type do I need for (ELEGOO) plant-based resin - organic solvent? inorganic solvent?
Thanks
I feel like I just tuned into an episode of Smarter Every Day or Veritasium lol, but hosted by you, lol. Great vid Brent.
Thanks Daniel! :-)
Brent releasing a long format video that utilises his professional expertise for the benefit and education of the community feels so wholesome. Love the video!
Hehehe, thanks, I'm glad you like it! :-)
FINALLY. A video that ACTUALLY describes what happens. Thank you
You're welcome! I couldn't find this video either, so I had to make it :-)
Wow... wish I had put the videos on 1.25x speed before. So much good information but the slow speech has always made it a little draining for me to listen for longer periods of time.
I am sure a lot of people like the way you talk, I just needed it a little faster. Keep up the good work, now I am actually looking forward to more videos :)
i dont understand a sigle term yet im still here watching
You make a good teacher.
You got a nice calm voice, friendly demeanor and you know your stuff :)
“Very long name that ends in acrylate”
me after my organic chemistry test wheezing my lungs out
Hey, is epoxy free resin like the matterhackers build resin really safer than normal resin? If it is, is it much safer or is the safety benefits negligible? Thanks!
I never though it would happen but a friend asked me why he shouldn't drink resin. I immediately shared this with him. thank you goober for helping my idiot friends...
For alcohol and resin.Leave the post cleaning solution out in the light and then filter. Some polymerization will occur which will allow the filter to catch the resin.
You made me laugh with "WILDLY irresponsible"
hehehehehehe :-)
This was hugely helpful, thank you! I realize that a lot of mini-painters don't necessarily use their prints to make molds but I'm a dice maker... Have you ever looked into the way 3d printed resin and silicone react? I know there's a lot of talk about cure inhibition and ways around that but I would LOVE to actually understand the science
Can you please do video on the safest resins to work with & show the difference between safe vs not safe or super dangerous ones whit your background as a chemist. I want to find the safest path to printing in apartment with a little one i don't want in danger while i print, well,, Please have a great rest of your evening Sir...
Brent your video was great and informative but your vibe is Utah man who has dead bodies preserved in his apocalypse bunker.
I feel so much more comfortable with my methods of resin handling and waste treatment after watching this.
Thanks a bunch Brent!
Same here. Up until now I've treated resin like it were nitroglycerin.
Great to see someone explaining the chemistry so well. We'd love to work with you on a podcast for Chemistry World - let us know if you're interested!
Hey that could be fun! Feel free to connect with me Brent@GoobertownHobbies.com
Awesomely informative content! Thanks for taking the time to edumacate us all!
After researching and founding nothing I think you are the only one who can help me with this question, are the fumes flamable?