The FUTURE of 3D Printing? Computed Axial Lithography!
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- Опубліковано 4 лип 2024
- Taylor takes us on a VERY deep dive of Computed Axial Lithography. How it began, how it works, and what's going on with it TODAY. WOW.
Computed Axial Lithography Github
github.com/computed-axial-lit...
Discord: / discord
Lab: design-nano.berkeley.edu/
Additional Reading:
makezine.com/article/digital-...
www.science.org/doi/10.1126/s...
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Axial Lithography... so hot right now...
I can see Will saying this. hahaha!
@@davidtobin that's exactly the voice I was imagining when I wrote it lol
Make the projector telecentric, this will make the rays all parallel. Also replace extended light source for the projector with a laser.
Ha!
Lmao
Hell yeah! Kudos to these folks for making things open source!
This dude's a really good presenter. He even has the textbook engineer nerd voice.
Really neat! The overprinting probably provides a lot of interesting use cases.
Multi material printing. Multi color printing.
This guy was on it! Taylor rules!
I love it when science is also open source. This is amazing stuff!
Most of science is
These guys definitely had fun hanging out.
Taylor is a blast!
Automatic thumbs for using a Monty Python clip after someone says Python.
😉
Python... Python... Python... Python... Python... Python... Python... Python... Python... Python... Python...
"links down below"... yes, I see lots of links, but none of them seem to be relevant to the video? Shouldn't there be a link to the open source project y'all were discussing?
yes. crud. I forgot when prepping the video yesterday. I'll get that done right now.
@@3DPrintingNerd so awesome to see a responsive creator
Not much is going on here. Hardware: last imported 5 years ago, Software: last imported 3 years ago. And no further development.
WOW, the implementation of print time alon, for medical supplies is incredible. BUT THE ABILITY TO PRINTOVER OBJECTS?! Especially at that scale is INSANE, great work. Excited to see this get used for incredible things.
So awesome. Thanks so much for sharing your expertise and advances. Can't wait to see what else you'll have to share in the future.
Stuff has star trek replicator vibes
I had the same thought
All we need to do now is combine this machine with AI generated 3-D models and will be able to just ask it to make some thing and it will appear before our eyes.
This is a great video and Taylor just seems like a great person. I can feel the enthusiasm from here and it is infectious. 👍
Don’t be too hasty. He makes the monomer substrate from kitten’s tears
Thank you Joel for your great coverage of such cool technology for our future! And thank you to all my fellow engineers making our tomorrow possible for the world to enjoy.
Cool to see a video of that. I visited UC Berkley 5 years ago and talked with Hossein Heidari (left one in your picture) about that. We also made a "Thinker" in a glass vile which I still have. Cool technology.
Vial. Otherwise fabulous story
Taylor mae this a joy to watch. Passionate about what they're going there, and able to communicate it in a natural way.
Pretty neat! Thanks so much for sharing.
This was awesome. My son has become interested in printing after we picked up an ender 3 se last Christmas. Creativity is the key to innovation.
That is awesome!
Would an amber bottle help keep that solution safer in the light?
@@DeAthWaGer that’s what I thought when they said it’s very photosensitive
My friends, someday we will be considered legends. Soon AI and tech like this will be able to make everything. Your food, your car, your house, your clothes, your chair, your computer, your music, your movies, even your lover... everything. People will have a difficult time trying to understand what it was like, when humans has to make stuff themselves. We are legends baby!
Crazy to see how one technology leads to another, amazing stuff..
joel ma man, thank you for sharing 3d printing development with us. this is totally unique and awesome. you're awesome!
Beautiful video & anazing tech.
Thanks for sharing this! 🤗
I love these science based videos! Good stuff guys.
That is very cool and very very exciting! I love science lol. Great video.
I so hope this will develop massively and we'll have a commercial product in a few years!
If someone needs this, yes.
Sorry, wants.
I've seen something like this about 20 years ago at NJIT. Instead of a projector they used multiple lasers around the object. Not sure what happened to it, though. The professor that showed me an example print was quite peeved that they were using it just to make models of molecules and not seeing the value of the creation.
Fantastic work, BUT, what I don't get is how comes the photons passing through the resin to form the structure don't actually polymerise the path they pass through?! In fact they probably do but the intensity of the light is designed to be high where the structure is and lower on the way to it. This raises the question of how reusable the remaining resin which probably would contain semi-polymerised resin, which is unlike SLA is mostly reusable.. worth clarifying...
The resin is most likely calibrated to only respond to the laser’s focal point
Wow! It's the feeling when I've 1st saw Blender 3d v2.56 :D
I hope that you'll evolve in the right direction, guys! Very impressive stuff!
you get a thumbs up for using a real genius clip!
I am really glad photo catalytic processing has made it fully into the mainstream of 3D printing like this, we are not far from having everything except the ability to reclaim or print items directly from raw ores like I am currently working on, so by the time I am done I will be able to pull off the shelf developed processes to incorporate it into, Now if my 9-23 pin printer head design based multi fused filament print head were being worked on. need that code to allow going from 3D design to G-code to control it is all LOL Then we can have 3 hour prints happen in a minute or two instead of current 3 hour time lines.
This is so cool. I can't wait for a startup company to come in and work with the Berkley team to create a commercial grade CAL printer. I predict that will happen in 3 to 4 years.
This just blows my mind. This really is just magic. I cannot grasp how this is possible.
I was going to day i remember see this around 2019/2020 ish the very first time, i was very excited when I saw it.
I had a go getting the software to work a year ago but python was a bit fiddly and it wouldn't compile. I might have another go now.
For a projector you could try a 2nd hand dlp one, they can be had for £40 ish on ebay. The bulb can still fire out enough uv to cure resin even if it takes longer. Ther are also ways to replace the bulb unit with a uv lamp.
I was planning to try mixing standard resin with something to thicken it, or maybe just use supports to keep things simple.
I work in dentistry so a lot resin I use is opaque. This would be fine for surgical guides and aligners however, cooking those up in 2 minutes would be very appealing.
Cool, it's like dlp without printing in layers, but entire model at once. Per descriptions it seems a specialised version of uv resin is used, correct? I imagine that consumer market application would depend on price of the build material, otherwise a high res consumer projectors are already there in form of dlp. Also, since model is not built on plate, but floats in resin, the resin tank can be potentially emptied automatically, model left on a strainer and removed as well, then process repeated again. With additional parts this process seems to be much more friendly to create automated production line than classic resin printing by layer ❤ Also, there is no material wasted on supports and I apparently printing hollow parts is possible just the same. Awesome stuff!
Other comment suggested moving the projector around tank to avoid any flow when higher speeds are needed or material is not so viscous - makes sense, although that would increase machine size significantly. Maybe the tank could have internal fins to prevent flow on the outer part or just surface to which the resin would stick to turn with the same rate as the tank. I had no fluid dynamics though 😅
I guess you can multiply and put 2 or 3 projectors in equal distances around the vat to speed up the process even more or allow larger volumes, provided that the software can accommodate such setups eventually.
Nice! Could you talk about current resolution and material properties (break mpa)?
love it, going to eliminate the need for super large hot presses that make parts, way less waste, seems like almost no waste.
That is wiiiiiild!
This is really cool.
What prevents the beam of light from solidifying the outer surface of the resin first?
I'm guessing they control the focus very carefully and have a very shallow depth of field on the optics for projecting the light. maybe for example it's really only exposing focused light right across the center of the container and the unfocused light is low enough intensity to not solidify the outer surface. so the part is really being exposed from the center outwards
I’m surprised it’s not just projecting light through a single vertical slit for extra control over the exposure. Maybe that would be more important for larger objects. Either way, amazing!
That's really interesting.
I have a doubt though. When we are rotating a container filled with liquid, the liquid may not rotate with same rate as the container. This effect will be lower for a liquid with high viscosity and less density, but it will always be present.
Does this pose an issue in this technique?
The solution could be simple, i.e. rotate it slowly or rotate the light source.
They ARE rotating it slowly, looks like one rotation takes about 8 seconds
Oooh, you should definetely print a Benchie in a bottle, but with a single run. I've seen this being done with some trickery, but having an actual tech to do this in one step seems to be much cooler. 😊
After nearly 2 decades since derpy demos, rotating vat photopolymerization returned and they made it open source. Nice.
I do wonder if they managed to deal with partial curing preventing full detail capture at larger scale (as iirc that was the issue with OG vat photopolying even stuff like real spheres without errors/slight deformations).
Cool stuff!! I gotta say, i was expecting a little bit more than 7 minutes in a ‘deep dive’
We have more coming soon :)
This really has a lot of similarities with computed tomography! I wonder if it could be possible to create this kind of prints using the radiographs obtained from a CT scan (with maybe some image processing to adapt them for the projection into the resin). Anyway, really interesting, thanks for sharing!
The intro to Small Soldiers in 1998 was filmed at 3D Systems Tech Center in Valencia, California in 1997. The machine used was an SLA 5000 which is a laser 3D Printer. This was 26 years ago. This is hardly cutting edge tech any more. It’s still expensive to produce parts this way and it’s cheaper to mass produce and import from a cheaper labor nation, unfortunately.
This young guy was really bad at communicating at first, and over the year, him forcibly being the spokesman, hes gotten so much better
Nice! I'm surprised it works with a single projector. I would imagine it creates lines all the way through the 'goo'. I suppose the focusing distance has a big impact on this, but still, there is kind of excess light continuously going through the medium, curing it.
I think the trick is that the goo only cures if it has light consistently pushed through it. The rotation is why it doesn't have "lines" where the light projects through - it is only where the lines intersect consistently (thus the precise calculation for the projected images) that it cures.
This is just magic.
I wish you'd zoomed in on the thinker you printed.
could print with more than one projector, everything just needs to be orthogonally aligned. say 2 or 3 on the sides to augment exposure strength and one above projecting in an expanding circle/cylinder at just below the activation energy. on another thought, could probably use the same technique for a hologram.
This is an interesting process and has some great applications, but it’s mostly limited to organic geometries and resolution is limited.
If you watch the whole episode you'll see they did it with metals as well.
@@davidtobinThat’s called over molding and is one of the benefits of this technology.
crisp haha great video, man
Interesting, but will it scale? The light will have to pass through more and more of the medium when you want bigger prints.
When will there be one of these that can print things that aren't teeny tiny?
So something like this, can it print large items or would there be issues with light penetration into a "deeper" liquid?
Also, with this method can we assume it can ONLY print solid objects or would there be voids inside the resin?
Should be able to make voids no problem, though you'd need to have a way for the fluid to get out of the void after.
@blugobln85 that's what I was thinking too. Might need to drill a hole or something
Does it have to be rotational movement? Could the projector or the vial be translated back and forth to give the same effect? (The images would have to preprocessed to account for translation rather than rotation)
3:02 i care more about open source hardware.
How do we build the machine and how do we make or get the resin.
For all the horrible crap on UA-cam, this is just fantastic!! Thank you, thank you, thank you… Videos like this are the perfect antidote to the Fascist driven anti-intellectualism that’s rampant right now.
Subscribed, liked and deeply appreciated! ❤
Just as a matter of course, is there any way that you could include toughness specs relative to other printing methods' final results? ...And...if it's not too much to ask...maybe even ask a few questions about toughness, get a closeup camera shot of the printed "thinker", maybe show a drone propeller or bike-pedal printed with the stuff...maybe a breaking test like you did with the CCF "black aluminum" (nylon+CCF).
...I might actually want to use some of this stuff to try to do something useful. I'd like to know when we're getting close to open source 3D printed engines, etc.
I have a similar idea but using an hologram , very cool proyect😅
Like this? Holographic 3D Printing is REAL!
ua-cam.com/video/Ha0QA7iLGy8/v-deo.html
What keeps the object being created from dropping to the bottom of the vial. If it is the viscosity of the magic goo then wouldn't there be a size limit in your printing? Or would there a pre-existing tether be employed?
I expect the solid has close to the same density as the liquid resin.
So I'm assuming all the resin remaining in the bottle is not spent and unusable?
This would be awesome for printing a whole heap of miniatures
Seems like this should be fairly easy to build commercial systems, the parts appear easy to source. As Taylor says the magic is the software and the resin material
Can you change the size (s)?
Seems interesting, so this requires like no supports? How big can you make prints?
How do they avoid radial smearing caused by the fact they are rotating the beaker, which would lead to a non-uniform angular velocity for different regions of the resin according to the normal physics of laminar flow (the velocity will be highest closest to the beaker walls, and slowest at the center)?
Wouldn’t it be better, but much more complicated to rotate the projector around the beaker? Actually, the ultimate would be to have a complete 360 radial projector so that nothing moves and the whole process is massively accelerated. That would be even more complicated, however!
The resins have a very high viscosity. Think honey.
@@user-it7kg3pm4qit would still share fluid properties. Although it would be mitigated, there would be some some movement
I'm thinking, what if you had a conical mirror around the vat and the projection points up under the vat onto the mirror which reflects each light ray to be horizontal and towards the center of the vat. Something like this (if my ascii art hold together)
/ | | \
/ | | \
-------------
\ | | /
V
@@user-it7kg3pm4q The viscosity of honey is quite low, only 2000-3000cps (especially compared with some of the engineering adhesives I work with). In any case, the effect will still occur (to some degree), especially if there are any attempts to scale up the process.
Of course this could be partly offset by moving to higher viscosity resins (like in the tens of thousands of cps), but they would present challenges of their own.
@@JonSThat’s just it, this process doesn’t scale well outside of small build volumes due to Beer’s law and how it relates to the working curve of the material and you can forget pigmented resins.
What controls the depth of a voxel in the solution? How come it doesn't print the projection on the outer surface of the vat as a cylinder?
Also, don't liquids move at different speeds in a rotating container, especially when it's closer to the surface? Would it not be safer rotating the projector around the vat?
That's what they meant by "dosage". All of the resin is getting exposed but only the parts they want to harden are getting exposed enough to harden.
This tiny scientist has a huge hand
Isn't this how the toys in Small Soldiers were made? :D
they were made on a normal resin 3D printer, but there was lots of CGI effects, and they raised the already completed print out of the resin, so it looked much faster then it really was.
And more light souces speed it up, print the back as the front is printed, etc
Ok. That. This. I was not expecting just changing the U.V. dosing so you could use a singular light source. I thought this wouls be something along the lines of carefully balancing the activiation energy of the resin so that it takes multiple projectors all dialed in and fidgeted with until they behave just right.
And nope. Its roate and expose a gradiant picture. And that is honestly cooler.
This REALLY is disruptive.Big congrats 👏🏻👏🏻💪🏻
But is it just a "line of sight" process? Meaning you can't print an object with interior details? How would that work?
I was wondering where is your Rapid + tct 2024 review?
A backwards CAT scan? Neat.
overhang support is also not needed.
can you snort udma or this different stuff
I would hate to see the MSDS on that fluid
6 projections at once (on all sides of the box/vat)
GG everyone!!
Obvious question; Why such tiny showpieces? It looks like a relatively fast procedure. The fact that there isn't a big piece to showcase the print quality of this method, has me worried.
Worried that the maximum print volume may be small? I think it probably just *is* (at least currently) small.
Even if it can’t be scaled up, I imagine there’s still some good use for it.
Perhaps to scale it up one would want to rotate the projector rather than the object? That way you wouldn’t have to deal with potential movement of the fluid coming from the rotation (which I imagine would be a bigger issue for larger volumes of the print area)
What’s the link to the original video?
Here you go: 3D Printing in ZERO G!
ua-cam.com/video/4JQq1m3cmOU/v-deo.html
@@3DPrintingNerd thank you!!
Please, Add Acoustic Levitation and Sonoluminescence to the Computed Axial Lithography
and try carbonated water
I have an extra 85v transcontinental dual axle solenoid AC Sine-wave Power supply . You can have it. Blew up my projector when I hooked it up!
Print some Star Wars Armada and X-Wing ships. I want to see that.
I was expecting it to print bigger
Wow those projectors are expensive!!
around 5000$ for all the hardware
What is the current Is the maximum size ? Vs the future planned max size? Parts seem nice - maybe the goal is for them to be small medical things.
Wow! Two Nerds! 😅
That's a Computer Tomography in reverse!
That’s so weird, my cousin just named her son Axial Lithography. Just a complete coincidence.
I wonder how scalable this will be later on
all my fellow scholars approve. what a time to be alive! :D
that pocket must be freaking dark
way better and cooler than that "cheaper" sls printer
This was mildly impressive 4 years ago. The clarity I'm seeing now is pretty impressive. I'd be curious when this finally hits the consumer market
2:41 Did not know it was named after Monty python, I always thought it was the snake ¯\_(ツ)_/¯
This is so complicated- EVERYTHING was invented from scratch. We have this projector and this rotating thing… and that is it.