I made COFFEE 3D Printing FILAMENT

[@CNCKitchen]

Drink coffee or print coffee - On which side are you? Don't forget to like & subscribe and share this video on Facebook, Reddit, Twitter, and other platforms!

[@Catofbaskerville]

I hoped a little bit that you bought it so I can buy it too because it's very cool!

[@jeftesantiago]

I brew a lot of coffee, and I could say that you could do a similar test with light roast coffee. The difference in between light and dark roasted coffee is the brittleness. Dark roasted coffee are less dense and brittle than light roasted coffee. So, you should get a better result with a light roasted specialty coffee.

[@loodwich]

You forgot an important additive for polymers "Blowing agent" to make a cellular plastic instead of a bulky one, whit that you could reduce the density of your printings.

[@MaxASAP]

print coffee :)

[@tdsangel]

Besides saving material the filllers modify the mechanical properties quite much. In a thoothfilling the Composite has round up to 94 Mass % of fillers in the material. Fillers reduce the durability of a material - the cracks run just around the particles and the failure happens earlier and with lower forces. The trick to improve the strength of a material through fillers is to chemically bind them to the base material - e.g. the mentioned partical in dentistry are bound to the Bowen-polymers with silan molecules. I have no idea what the residue of old brewed coffee beens contain chemically but you'll find out. There will be a possibility to adapt the hydrophilic properties and the chemical bonding. The best thing will be to have premixed coffeebeannanoclusters to mix to the pla. But in the end it's not about the mechanical properties but the smell.

[@grimus8266]

Finally, actual cnc kitchen

[@Phil-D83]

Cnc Cafe..but close enough

[@xestrix420]

Xd

[@charliebell7163]

Lmao

[@williamhuang8309]

3D printer cafe

[@Allen-R]

lol nice

[@HannesMrg]

PLEASE send a sample to James Hoffmann, a coffee youtuber that recently made a 3D-Printing video.

[@mayur619]

James Hoffman: Let's 3D print coffee accessories Stefan: Gotcha, let's print with coffee The timing couldnt have been any better, within a week of each others video.

[@hoffer_moment]

meanwhile i just watched a fusion 360 tutorial where a guy made a coffee maker, and i'm drinking coffee right now

[@lovecastle7154]

James Hoffman, not Jeff lol

[@mayur619]

@@lovecastle7154 didn't even notice it, thnx

[@0oSiLveRo0]

@@hoffer_moment that's a really great tutorial, the one with the mokka pot. Did you print the parts?

[@hoffer_moment]

@@0oSiLveRo0 it was very hard to follow without a prior fundamental in depth tour of the program, so im starting there first. coming from sketchup it's a doozy, but sketchup is just so bad for making changes to complex parts of a model down the line

[@outofdarts]

Looking forward to your backyard composting experiment!

[@manny4148]

Always fun seeing these two worlds collide of one great creator that follows another

[@CNCKitchen]

Yeah, me too. Since I've never seen any real degradation in PLA even outside I'm quite exited if the compost environment will change anything.

[@emilymarriott5927]

@@CNCKitchen Good luck. From my understanding, your compost pile will need to maintain an internal temperature of 130F (about 54C) to actually compost PLA, which is a tough temperature to consistently hit in a home compost situation. I hope you find a way to compost PLA that can be done at home reliably. That would be a game changer with all the scrap 3d printing produces.

[@olafb.2929]

@@CNCKitchen Looking forward to see the results, though I am not overly optimistic that PLA can be easy composted at home. But, who knows, you will let us know in another nice video :)

[@ChrisHarmon1]

Damn, you beat me to it. Only read this after posting basically same thing...

[@marsgizmo]

Pretty interesting project, I love the 3D Printed Coffee Bean! 😌

[@CNCKitchen]

Great model, yes!

[@bonovoxel7527]

The paper bag was cool!

[@theshiznojudge]

Those coffee particles still look huge to me. I work with twin screw extruders so maybe I'm just used to super fine pigments, but we have never had a noticeable drop mechanical properties even at 5% pigments. Maybe try putting the bowl and coffee grind in a freezer for a while right before grinding. ABS/ASA is commonly cryo grinded because it will just remelt from shear otherwise. Making it colder and more brittle may help get smaller particles and better mixing.

[@CNCKitchen]

You're right about that. I'm currently looking into ways to grind the material down even more.

[@markkalsbeek5883]

@@CNCKitchen Do you have space for a ball mill in your freezer?

[@josefludvikbohm5390]

@@CNCKitchen team up with James Hoffmann, he knows a thing or two about grinders

[@PhillipTorrickeBarton]

I live in a rice growing region in Japan and I'd love to make a rice husk blended filament.

[@dekurvajo]

You mean organic PVA? :D

[@RobPTK]

This is so great, you are truly living up to the name of CNC Kitchen!

[@AlyssaNguyen]

I wonder if putting the PLA pellets and coffee grounds into a blender before putting them in the filament machine would make a difference

[@hopefullyhigh]

yeah mentions something like that at one point where he says he mixed the grounds with the broken up pla balls to help evenly mix it, or something like that haha

[@lovecastle7154]

I bet if you ground up the first batch of filament and re-extruding it might help with the clumping

[@TheMidnightSmith]

3d Fuel sells a "Wound Up" brand of coffee Filament, I used some a few years ago, it's pretty cool! They make a Buzzed brand that uses beer hops and another that uses hemp fibers. I love how you can do this yourself now! This makes the machine worth it! I drink soooooo much coffee lol

[@CNCKitchen]

Yeah, I've seen that! Need to ask one of our local brewing companies if they can spare some waste.

[@TheMidnightSmith]

@@CNCKitchen ooooooh I love the idea!

[@Muscleduck]

For the higher coffee content, it might be an idea to mix the coffee and PLA into a fine powder and extrude them as pellets first, then use those pellets to extrude again to make the filament.

[@Unmannedair]

The plastic fluidity changes because your filler changed the specific heat of the plastic. Your thermal cartridge is putting out a certain amount of power per second and your plastic is absorbing that same amount of power. Adding your filler means that a certain volume of plastic can actually hold less heat now and therefore reaches a higher temperature for that amount of power absorbed.

[@mellertid]

As a consumer, specialty filaments are typically too expensive. As a maker, I'd like to experiment myself! As a citizen, I think sustainable options should indeed be pursued.

[@raphaelmorgan2307]

yeah honestly if I had the machines to make my own filaments I'd be all over that. Especially if it could be made foodsafe, imagine those compostable utensils but if they were backyard compostable!

[@oOSpecialProskillsOo]

i have started to almost exclusivly use polyterra for my pla parts. Not only does it give and amazing finish and prints very well, it also uses 20% organic fillers and comes on a really well made cardbord spool

[@BRUXXUS]

That stuff is pretty amazing. I used to to print some coasters that look like toast and waffles. The banana yellow is spot on Eggo color, haha! It's definitely not as strong, but the matte finish is beautiful. My biggest problem with it is the smell while it prints. Gives be an awful headache. 😢

[@Felipeh999]

The only bad thing about Polyterra is the bad layer adhesion. I love the matte finish.

[@oOSpecialProskillsOo]

@@Felipeh999 i havent had issues with that yet. I print it at 205 regularly and 200 in my mmu

[@Felipeh999]

@@oOSpecialProskillsOo Ok, to be fair, layer adhesion is not bad, it's just not as good as regular PLA. Normally I don't have any problems with it, but I've had small details breaking off very easily and layer pealing apart in vases.

[@user-ts1xp4gm1b]

James Hoffman: lets not put coffee in everything! Stephan: Ok?

[@bonovoxel7527]

Dang the video has begun and I thought I was watching a third ad! And it was more charming than the actual two I just watched, there's to say!

[@LanceThumping]

7:50, I'm glad you mentioned a ball mill. I've seen so many youtubers lately that don't know the proper way to grind powder that just use a blender and then shrug when it doesn't work.

[@rumpelhd75]

Still one of the best 3DPrinting Content creators on here. Keep it up, Stefan - great Work!

[@CNCKitchen]

Thanks! ☺

[@maertsnosmirc]

I actually wasn't aware of the blog. I appreciate that you're going the extra mile

[@nikiichan]

I like how thorough this is and all the effort you go through with making sure its properly dry and fine and then checking the different percentages :D I look forward to any updates too! That first vase you printed looked SO PRETTY! I think I would like the filament just for how pretty it looks :o

[@cavinrauch]

Probably the first time I've seen someone make real coffee as an intro. Milk frothing is no joke but coffee was probably still good :)

[@gabrielecossettini2923]

Most strange thing is to see a German or Austrian make REAL espresso

[@CNCKitchen]

No instant coffee at our house. Even though fully automated coffee machines are quite widespread in Germany, I prefer the honest, manual way.

[@gabrielecossettini2923]

@@CNCKitchen yeah

[@YoloToTheMax104]

Finally. After all these years, we have Kitchen CNC

[@FireN2k9]

Ich hab mich schon immer gefragt wie schnell sich das abbaut, du hast echt n gutes Gespür für die Themen. I´ll always asked myself how fast it dissolves, you really got a good sense for topics. Grüße greetings :)

[@EricM818]

Wow, great video! I'm regularly impressed with the thoroughness of your experiments. Really cool stuff!

[@link3457]

Coffee grounds after dried are quite a good dessicant so after drying it could still retain some moisture after sifting and such

[@colapolly]

i would definitely buy one or two spools of coffee pla from you. i love the colour and the effect in thin walled prints.

[@owenatkin3148]

I'd be interested in trying some like this for my 3d printed model building tools. Tools like anything wear out or break, and I'd feel a lot better knowing that the material were more ecologically sound.

[@supreme-helix]

If we're talking about bio-composite polymers, using chitin can be a great experiment. Chitin is what crab/lobster shells are made of and has some amazing material properties. Chitin or it's more workable counterpart chitosan can be bought in bulk easily and cheaply.

[@deathsmilez5297]

This filament would be great for little figurines to absorb room odor since coffee grounds neutralise odors

[@yiranguo5572]

When I started watching this channel years ago, I wondered why ktichen was a part of this. Now I understand.

[@spedi6721]

Owesome idea using coffee! I would definitely buy such a filament because I love coffee! Maybe you could try it with fresh coffee ground. But the oils might be a problem.

[@dekurvajo]

No problem, no oil if you buy the cheap brands from some of the big franchise supermarkets

[@zbynekchmela7778]

That is simply brilliant. And the colour is absolutely fantastic! Great job Stefan 👍

[@danyg4063]

That is a GORGEOUS filament.

[@bigbangbomberman]

haha, cooles video! Bin erst neu im 3D-Druck Thema mit meinem ersten 3D Drucker und bin vor kurzem auf deine Videos gestoßen. Echt nice Videos!

[@oatmilk9918]

im curious to know if other fibrous materials like seeds, nuts and fruit rind could also be added and potentially function as a dye

[@isaiaht8648]

Orange rind would be an interesting one 🤔

[@CNCKitchen]

Orange is coming!

[@isaiaht8648]

@@CNCKitchen notifications, ACTIVATE

[@Desmarestia.]

Finally CNC kitchen is in the kitchen

[@CNCKitchen]

🍽

[@unboxedverdict]

The Thermomix! My top rated machine throughout the house. It is honestly my Family's favorite kitchen appliance. Love the combination of coffee and filament!

[@santiagoblandon3022]

3D printing and coffee, my two favorite things :D

[@ChristianBehnke]

The paper bag vase looks awesome with the coffee PLA!

[@deesh6378]

You can also use spent coffee grounds as a rub for things like steak, just mix it with salt in the ratio you'd like. Or even mix it with chocolate when making cakes, pies, cookies, chocolate milk, etc.

[@LuckyX0182]

I love that you pursue your curiosness

[@davidbundgaard]

Smooth segue for presenting an advertisement. Good work. Interesting to see the properties of mixing PLA with our loved beverage. I guess we should look into making coffee grind stronger, would be nice to reach 100kg of tensile strength.

[@xoniq-vr]

That huge coffee bean is awesome. The color of coffee, the smell of coffee, well played

[@CNCKitchen]

Thanks! I was very happy when I found the model!

[@G3BEWD]

Man! I don't know about any thing else, but the color is amazing!! It's so cool and coffee like that I'm willing to buy some!

[@justin.campbell]

I did a school scisnce project on what can help keep snails out of a garden, and I found that used coffee grounds can be used and out of the 4 things I tested it had the best result at nearly 100% success rate. So if you dont want to make filament, you can try putting it in a pot or around a garden!

[@chriswitty8552]

Hi Stefan, awesome video you did there. I work with extruders and the problem with your (usually with kneading elements in twin-screw extruders) to deagglomerate the coffee. Either you could extrude the printed filament again and hope for smaller particles or you would have to mill the coffee beforehand. If you mill it with the PLA, I would definitly use dry ice to reduce degradation of PLA. Also if you only feed powder to the extruder there could be problems with reduced feeding or no feeding at all. Hope this helps somewhat!

[@charlie_lee_rhee8866]

Stefan is having too much fun with his 3devo

[@BRUXXUS]

I would too if I could afford one. haha

[@CNCKitchen]

Doing my best as long as I have it!

[@properprinting]

I waited until this morning to watch this video for the obvious reason xD Awesome video! No diamonds without pressure ;)

[@CNCKitchen]

Thanks man, enjoy your Sunday coffee!

[@ZappyOh]

Looking forward to your composting-video. Would buy coffee-PLA ... looks fantastic!

[@shoking9825]

welp now you can make a coffee cup out of coffee i love your channel btw

[@CNCKitchen]

Should've, yeah. Thanks for the kind words!

[@shoking9825]

@@CNCKitchen np

[@codyhufstetler643]

This seriously seems like it was perfectly timed with James Hoffman's recent video about 3D printing coffee gadgets... He even recently had a video about how people need to stop putting coffee in every product. Your intro is even somewhat Hoffman-esque.

[@D3Dm-ef1]

Is it possible to combine PLA with algae blooms pellet? They are making shoe's from biodegradable algae pellets? It would be a good experiment to see.

[@rickseiden1]

I absolutely LOVE that you printed a giant coffee bean with coffee filament!

[@kiguwatsdeeds1800]

When i subscribed to this channel, didn't thought it would actually have anything to do with the kitchen. color me surprised😂😂😂

[@bazylinskuns]

Great video! Your composting experiment sounds really interesting! I'm always wondering how much biodegradable PLA really is. It will be awesome to see how it compares with your coffee filament.

[@aterxter3437]

I just come around this channel a few days ago, mr3dprint shows how he produces his PET filament from plastic bottles with really little material, no leadscrew, no overly expensive extruder, just a razor blade, a heater block, a stepper and a 3d printer main board for the temperature regulation

[@Slushee]

"The most favorite kitchen tool of Germans" Not just for Germans, I'd say for the whole of Europe

[@rolfkreuzer4466]

I don't like the Thermomix. It's typical for an All-in-One-Machine. They can a lot, but nothing very good. So at the end, you still have more than this one machine in your kitchen. And for 1000€ I get a lot of mixers.

[@doranku]

Thermomix, never heard of it nor ever seen one in NL. So I highly doubt your claim.

[@Slushee]

@@rolfkreuzer4466 That's true, I don't have one, they're really expensive. But the people that can afford them do get one and frequenly use it.

[@totolook]

aka Bimby

[@frankbauerful]

Smell, texture and color would definitely get me to buy this for the same reason I buy wood filament. Having more options for decorative pieces is always great.

[@wardprocter2371]

I like the colour and texture your mix created and the scent would be an added benefit. I thought the 3d printed coffee bean was excellent.

[@YunFuriku]

I'll never forgive youtube algorithm for making me miss this video for FULL DAY without me getting notification :(

[@Nbec95]

3:26 Did you put unused coffee powder in the oven to check if it loses some weight, too? Maybe the used powder does not only lose moisture in the oven.

[@cocon16_PW]

I have some experience with heterophase composites, even PLA-based. Easiest change for you to apply is a dispersing agent to prevent the coffee powder to agglomerate within the polymer matrix.

[@jasontrauer]

Smoother transition to a sponsor's advertisement than even the most expensive cup of coffee.

[@CNCKitchen]

😎

[@TheCyberSpidey]

Looking forward to the Prusament PC Blend CF review as well Stefan, I hope it's in the making :D Cool experiment. I can't imagine all the fillers peeps would try once home-extruding fresh filament gets cheaper.

[@reevesjustin]

I'd love to see more about your new Duet mini! Would you be able to put out a video going over your thoughts and maybe a guide on using it after the install?

[@shaneh7519]

Do you think the coffee beans originally had any moisture in them? And so when you completely dried them out, you also removed the original weight from the moisture that was originally in the beans?

[@CNCKitchen]

I actually also dried a sample of fresh ground coffee to calculate the remaining moisture content (2.8%) and substracted that from my other samples. Will add more details to the blog post.

[@someguy2741]

I wonder if an intermediate binder like powdered sugar dusting it? This might help bind the PLA to the Coffee particle... and will add a caramel smell!... or a bitter burnt sugar...

[@3DPrinterAcademy]

Great vid! Would be fun to have one of 3DEVO's machines!

[@DoubleG1960]

Mr Stephan. I remember (but impossible to find it again) a techniq of 3d printing where a very very thin thread of strong material (nylon could be?) was inserted just after melting the PLA, crating an PLA - NYLOn reinforced impression. Have you ever try this kind of 3d printing? (adding a metal cord or nylon or whatever) during the 3d printing itself process??

[@nigelyam38]

Would tea be a even better filler option? Compare to coffee grind tea leaves might be easier to post process after brewing. It can be grind down to a more fine particles hence allow a higher ratio plastic

[@peterfalcon2691]

would there be a problem with grinding down the pla pellet's to be roughly the same size as the grounds ? a good coffee grinder can give you even finer grounds and more consistent , James hoffman can probably help with that part . Homogeneity of the mix is probably what you are looking for .

[@AmaroqStarwind]

In addition to getting a twin-screw mixer and a ball mill... I would also suggest getting some lycopodium powder and some activated charcoal. The lycopodium powder should help repel water, and the activated charcoal could further improve compostability. I'd also suggest using a freezedrier to reduce the water content of the coffee grounds as much as possible.

[@ziyuanwang5332]

To solve the issue regarding the uneveness of the 10% filament, have you tried to pelletize and re-extrude the filament? Multiple time of pelletization and extrusion could make the filament even.

[@noanyobiseniss7462]

BTW if you had used unused ground you would have had the nice roasting smell of the original brew I would guess and your final product would have a nicer smell as well.

[@jspiro]

I can't tell whether I'm watching James Hoffman or CNC Kitchen, and I like it!

[@AndrewHelgeCox]

Can you print blobs over the bed surface that are the same dimensions as the virgin pla beads, and then throw them into the filament extruder to make a double-mixed filament for the real model printing pass?

[@TheMarcoflint]

@CNC Kitchen: you need to make tests on ASA vs PLA vs PETG vs ABS on "weather resistance": Water (normal & salty) exposure, UV Light, Heat of the sun. That would be so interesting to see how the element affect 3D Prints :)

[@ec12321]

I know you mentioned a ball mill but a cheaper (albeit slower) method would be a stone mill/chocolate melanger/ wet grinder. Typically they'd use some sort of oil matrix (think chocolate) but the particle size reduction of continuous run times of 3-4 days on these machines can get down

[@19rocket64]

Coffee has a number of fatty acids: including oleic acid. they are outstanding capping agents...which would reduce viscosity of the mix. not sure if this was the improved flow that you noticed when making it. But it may reduce layer adhesion as it is soluble in water. I use Oleic acid as a capping agent in producing nano particles and coffee or even better green tea are great sources. I wish I had that filament extruder for experimenting using my powdered nano material fillers.

[@elvinhaak]

How does it react to water and temperatures? Does it fall apart in water or swell up? Melts earlier or later then regular PLA?

[@IanSlothieRolfe]

It would be interesting to see if the properties improve if you are able to mill the coffee down to a finer particle size - it would certainly improve the clogging, and might even make it easier to make filament with a higher %ge of coffee. I like the look of the printed objects, I think it would be useful for printing wooden carving style objects, the brown is richer than any brown filament I have seen, it looks like polished mahogany somewhat. I am also interested in your experiments with composting, I have often been told that PLA biodegrades but have never seen any actual data or experiments on it.

[@zachmo37]

What about tumbling while dehydrating to prevent any pockets from getting caught?

[@Curly3107]

Great Video. Can you please make a review of Polyterra PLA from Polymaker? It behaves more ductile than other PLA types and yields a lot like ABS before snapping. It would be interesting to see a comparison to other PLA brands like Prusament or Polylite.

[@RC-1290]

3:22 How much would you see if you dried the coffee before measuring the pre-extraction grounds?

[@CNCKitchen]

I already accounted for that. That's extraction yield without the moisture. Added a section in my blog post about that.

[@ComgrowOfficial]

Brilliant video as always, dude! You're really informative and creative!! Love your channel😍

[@berndstrauss151]

You get freezer dried fruit powders...like Raspberry or passion fruit....maybe make filament with them to see how they smell and survive the process or cocoa powder....alternative test flavored oils....how cool would it be to print a green peppermint favored Benchie

[@scottwilliams895]

Such a cool video! And just as professionally created as all your work 👍

[@Illure]

You should try with matcha. It tends to be ground very fine. Would it have a similar property that you were looking for with the coffee?

[@chillaxter13]

I'd be very interested to know how the prints smell after printing is complete... I would 100% love to try this filament, mostly for the organic look and the potential smell.

[@thomashowe855]

Wasn’t exactly expecting this… …but I love it!

[@kgrach]

Yes, I would use filament made from coffee as, I already have. I brought 3Dfuel filament made from spent grains, coffee, hemp even their black filament made from garbage not as nice smelling as the first three. All printed wonderfully

[@2DragonFreak]

CNC Kitchen + Coffee= best Crossover ever

[@grande1900]

I love the way that the spent coffee grounds look like little brownies

[@danielsmullen3223]

Stefan, I love your videos. I am also obsessed with morning cappuccinos. What is the grinding setting you use for the espresso (prior to thermomix pulverization)? Also, did the press that you use with your DeLonghi machine come with it? If not, where can I find it?

[@CNCKitchen]

I grind my coffee pretty fine (level 5 of 6 on my mill). I bought the stainless steel tamper separately. Just search for "51mm taper" on amazon.

[@PoshuMokona]

That was exactly the answer I was looking for about a question I never asked.

[@TheTuneAce]

Cool concept. If you've already got a dehydrator, pellet extruder, and solar panels to produce the power, seems like a cool way to reuse a small portion of coffee waste (rather than put it all in a compost)

[@Angelo_Aus]

Coffee filament, ... now i've seen it all. Love your work

[@CraigWard]

My favourite coffee channel James Hoffmann has just got into 3D printing, I hope he see this.

[@SwapPartLLC]

This is a great way to wake up while working!