Multi Color with NO Purge? Articulated Dragon on the Cetus 2 for a First Look!

[@cobusgrobler662]

Purge to infill should be very handy with this machine

[@England91]

You mean in the infill but yeah, that would get a better option

[@KeithOlson]

Finally a good use-case for spaghetti infill!

[@UncleJessy]

Fantastic preview and finally seeing some of those wild prints!

[@3DPrintingNerd]

The prints really do have a different look to them!

[@marcoreviews]

Great stuff as always Joel! I would love someone to print any of my models in dual colors like that but have no idea how to convert my models to do that. As always if you wanted to take a look 👀 at some of my models I could let you use them for free. Best always! Keep up the excellent work! The dragon 🐉 is just unreal!! Beautiful 🤩 work!

[@marcoreviews]

Great comment Uncle Jessy! I am coming over to your channel to see what resin masterpieces you are working on!

[@3DPrintingNerd]

@@marcoreviews Oh, shoot me an email! Maybe I can get one of your models printed!

[@marcoreviews]

@@3DPrintingNerd that would be a dream come true Joel! I will do it for sure!

[@Martial-Mat]

A cable path that rubs against the filament spool is a far bigger problem than a locking connector! That's a worn cable guaranteed. Needs completely reworking. This print technology is massively overdue but also sadly half baked. Well done to Tiertime for getting there first. Now let's see an 8 colour version.

[@peterkiss1204]

5 color with proper mixing capability (R, G, B, BL, Wh) might be enough.

[@Martial-Mat]

@@peterkiss1204 Agreed, although printers that do that already make AWFUL prints. The mixing is just awful.

[@rattslayer]

That cable connection is bizzare. All it needs is a 3d printed stress relief grommit... But no excuse for it shipping like that

[@pa2797]

@@rattslayer it's not shipping like that - he has a pre-production machine. The Cetus V1 machines have been fantastic and again Cetus shipped out pre-production machines to reviewers.

[@England91]

@@pa2797 yeah, I think some people for get this is a PRE PRODUCTION version as in not the final version

[@riggsvsoliver]

This is honestly a long overdue thing that should be a lot more Available than they currently are

[@vinny142]

I guess paint is just more convenient.

[@justinchamberlin4195]

*seeing the ribbon cable basically being pulled out of its socket by the filament spool* *Denholm Reynholm's shocked face* I honestly don't know how that design made it out of testing...were there any prototypes at all or were their engineers so blown away by the awesomeness of the dual-color-no-purge-tower prints that they didn't notice? Because those prints are awesome, even if white and other very light-colored filaments end up picking up a lot of whatever darker filaments they get paired with.

[@devdog99]

I just got mine last week and ran the first demo print off the SD card today. There are pimples from over extrusion but otherwise the little rocket looked amazing. They did move the cable you spoke about so now everything is on the extruded side and doesn’t get in the way of the spool. Clear instructions for initial set up. Only gripe is the QR code they have on the manual for videos…doesn’t work…yet? Great review. I was a very early backer and extremely happy with the product I received.

[@FilamentStories]

Exciting technology. No purge block for dual or coextrusion is technology we've all been hoping to see developed. I tried the Geeetech and was disappointed, although it was an interesting printer. The Cetus looks like an advancement in some directions, although it appears they have work to do to make it truly viable. It's fiercely difficult to achieve with the vast variety of filaments available, but it looks like they have the potential to get closer to succeeding if they Improve the software and firmware. I’m very interested in seeing what happens with the Cetus 2 going forward. Thanks for the detailed video on your first impressions!

[@3DPrintingNerd]

Thanks for watching! I also agree - some better software and firmware would give this machine a HUGE advantage.

[@monsterstorm78]

@@3DPrintingNerd do u still use this printer at all

[@3DPrintingNerd]

@@monsterstorm78 No, unfortunately. I gave it away at an event.

[@monsterstorm78]

@@3DPrintingNerd did ya like how that Machine printed

[@b3owu1f]

I can't wait for my Prusa XL.. with 5 heads. Won't quite be as fast as this.. but 5 different colors/materials.. will be so amazing to work with!

[@3DPrintingNerd]

Yeah it will!

[@justRD1]

If the bed had a 4th axis you could rotate the co-extrusion to make some really cool patterns.

[@3DPrintingNerd]

NOW you're talking! That's a fun idea!

[@mobilechaosyt]

I like it Picasso. It seems like the slicer still prints the outside of the model before the inside. And if the slicer was changed to print the inside after switching filaments then when it gets to the inside it will be cleaner. You might also find that white and black works fine if white is on the right side vs the left side or vice versa depending the direction the print head is printing.

[@3DPrintingNerd]

"I like it Picasso" hahahahah I see what you did there!

[@Dalenthas]

Black and white are pretty extreme, I've noticed that when switching filaments (you know, the old fashioned way) I have to purge way more when switching from black to white than any other color change.

[@3DPrintingNerd]

Very extreme, hence me trying. Other filaments take WAY less purge

[@Craftlngo]

this four coloured Benchy looks wicked! Just how I imagine a Tessaract of a Benchy would look like.

[@LordHonkInc]

I'm glad to see development in the multi-material scene. Like, I personally try to use as few "waste parts" as possible (y'know, rafts, supports, purge blocks/lines etc) just because I think one of the most amazing parts of 3D printing is just that, avoiding waste. I understand that in some cases it's unavoidable and yes, there's mitigations like "just print something non-aesthetic as the purge object", but MM purge blocks always felt like just a literal waste, so any progress in that area is, imho, very much appreciated. Hope they iron out the kinks in the actual machine (like the precarious wiring) but yeah, pretty interested in what the future holds for this concept.

[@Robothut]

So if your doing a long 2 color print and 99% of the time is just one color, what keeps the second color from burning in the hot mix part of the tip ?

[@3DPrintingNerd]

That's a very good question.

[@WKfpv]

On these mixing kind of hot ends, doesn't one filament cook while the other is printing?

[@evertchin]

it does... obviously... hence a V shape path multi filaments nozzle/hotend is always a no-no. cool in concept... but very limited in what you can actually do...

[@ProjectAdditive]

You should mix translucent filaments with some interesting textures and see what you get. I'd love to see the results.

[@3DJapan]

My Ecubmaker does 2 materials with no purge block. Unfortunately the switching is kind of slow and I have other problems with that machine so I don't really use it anymore.

[@RcaHellemons1972]

i did back this project, hope that they fix the connector fixation. as far as i know we get options for spare nozzles. smaller but faster touchscreen with it's own cpu and not a shared cpu at the prototype version ---------- Touchscreen We decided to use another ESP32 MCU for driving the touchscreen and WIFI. So this mean the printer is a dual-MCU system, one dedicated for printing and the other for peripheral functions. The touchscreen will be a smaller 3.5 inch type but it is more flexible to develop and more powerful than the 4.3 inch screen currently used in the prototype. Hotend Temperature Control In the prototype we shown in the video, the extruder only have a single temp. sensor. We decided to add the second temp. sensor in the hotend to allow the two heater block to able to maintain at different temperatures. Since the two heater blocks are connected, max temp difference can be made is somewhere around 50C. This may give better stability for materials pairs that have dissimilar melting temps and allow more accurate temperature control overall. so we backers hope to get a nice 3D Printer !!!!!

[@AndrewSink]

The editing on this intro is *awesome*! Printer looks pretty cool, too! 😂

[@DoctorZombo]

That quadruple filament benchy looks super cool

[@joearchuleta7538]

I sell Tiertimes and there slicer settings are optimize to print there filament which is a little expensive and limited color selection but the print quality can be Fantastic!

[@olafb.2929]

A nice concept, I hope we will see more of this.

[@3DPrintingNerd]

Awesome, but I want to do more with this :)

[@olafb.2929]

@@3DPrintingNerd Go ahead, I am curious ;)

[@crashoverride200]

try linking up with the palet pro 2 and see what you can print i would love to see that that woul be a rainbow fart ;)

[@RandomnessguyGaming]

I just got my cetus 2 today can't wait to get out put together

[@corid143]

That’s awesome I was literally talking about this on Reddit yesterday, but on my ender 3 V2 if it can even be called an ender now. Edit: I posted this before watching this, my way of printing without purge block or a ooze shield is way different and includes a 2in2 out setup like chimera.

[@rcmaniac25]

Nifty. Color mixing extruders have been interesting but seem to always have that same issue of "they don't really mix" as well as color bleed. I know "no purge block" is a thing many people want (myself included), though it still comes across as "this is a software and calibration issue" as opposed to hardware, but people keep trying to fix it in hardware or they just accept sub-par results for the ability to half-heartedly announce they did a print without a purge block. How to get Prusa and Cura and Mosaic to actually put in the effort to reduce the purge block, I'm not sure. But I know if I was doing multi-color prints with this, I would be limited because of the color results and bleeding. Everything else, I think you covered well. I kinda had a cartoon-style response on "can't move the axises" like... what year is it? But we will see what people pull off with this.

[@custos3249]

So it's basically one of those multicolor clicky pens

[@sgsax]

Really interesting concept, even if it does need a little fleshing out to iron out the bugs. Nice to see people pushing the boundaries of what is possible. It makes it more interesting for everybody. Thanks for sharing!

[@3DPrintingNerd]

Thanks for watching!

[@dim1723]

Wooow hope they work that out. Wonder if they can go for a 4 color print?

[@Mireaze]

Co-extrude some funky fillaments, like what would happen if you had a brick made of both flexible, and carbon filled fillaments at the same time.

[@PizzaCat1732]

It could cause problems because you would have 2 types of filament in the same nozzle 7:05

[@Mireaze]

@@PizzaCat1732 Ik, thats why I want to see it

[@jim2386]

Seems to me having the option for a mini purge block for printing black/white prints would be more than acceptable versus the standard behemoth purge blocks used today. If nothing else it’s a step in the right direction. I did cringe the minute I saw the x axis cable drooping down. They need to invest in some cable chains or something to clean those wires up. Very interesting concept!

[@3DPrintingNerd]

Mini purge blocks over typical sized one IS a welcome change to multi color printing for sure. The X-axis cable drooping down *is* something I didn't like, but I did have have issues with it like I did the ribbon cable in the back.

[@DaaaveO1971]

Looks like a nice concept, but that nozzle may be a nightmare to clear a clog from. Also, nozzle changes might be challenging if the filament enters it from the left and right as shown because turning it to tighten it might end up blocking the filament paths.

[@3DPrintingNerd]

I didn't have a clog that needed cleaning, thank goodness. I was thinking along the same lines.

[@ZeFoxii]

Should we have a Transmission distance setting for areas where we “want” gradients

[@PMcDFPV]

Oh "Rainbow Wipe"! Halfway to a "Star Wipe" Sean :D

[@TheM0JEC]

One thing you didn’t mention or covet (unless I blinked and missed it?) was variable percentage between the filaments? In theory if you had black and white you could produce multiple shades of grey in the print? Maybe it was something not available on that machine/software combination?

[@3DPrintingNerd]

Oh shoot, I may have missed mentioning this. It's hard coded to 50% from both sides. I couldn't find a way to adjust.

[@Craftlngo]

@@3DPrintingNerd looks like something that a firmware upgrade (or even better) an improved version of the touch interface could solve.

[@michael__5647]

you said the multimaterial capabilities aren’t that good, what about water soluble filament and pla? would this work?

[@3DPrintingNerd]

It would have a chance, as those have similar melt temps, right?

[@BrokeGambler]

Question, did you have slicer set to print infill first? I would assume there would not be as much color bleeding from even white to black? Then if there was still some increase the infill percentage. If the thing was large enough peeve could definitely happen in the infill.

[@3DPrintingNerd]

I’ll check UP Studio to see if that’s an option - great idea!

[@7shortofperfection]

I'm guessing it's not marlin based? Can it be controlled via octoprint? Not a perfect solution, but it would bypass the UI problems

[@3DPrintingNerd]

Per their website, it is not Marlin, and not Octoprint compatible.

[@7shortofperfection]

@@3DPrintingNerd bummer, hopefully they make some changes to the UI then, it looks pretty promising

[@jaxperez7860]

I always thought you could hide the Purging in the print itself, if the outside looks good I don't care about the inside, cause having a purge tower wastes a lot of plastic.

[@3DPrintingNerd]

Not always - depends on the slicer. So far I could not find "purge to infill" in UP Studio.

[@jaxperez7860]

@@3DPrintingNerd well nice to see at least someone tried. Thanks

[@thespacecowboy420]

I think you should print shocks from soft TPU between PETG. model your connecting layers so that they self interlock when printed (inverted pyramid style) and then test them

[@GiovanniMorenoMusic]

One advantage is if your out of filament theres still another roll in there 😱 Can see how this would be a gamechanger for some

[@Chrissi33004]

unless when you consider that there are already plenty of better options to deal with the issue of filament runout. There are filament runout sensors that you can use in firmware There are filament runout sensors that you can use with octoprint/raspberrypi There are filament management plugins for octoprint availabe that log the remaining wheight of material on your spool There are large spool sizes like 2.6kg, 5kg or even 10kg for very large prints But does the printer even have filament runout sensors for switching spools when one is empty? If not, how are you gonna do this in software?

[@critter42]

Cetus has said in a post the other day you can have materials with a temp profile of up to 50C difference between the two

[@3DPrintingNerd]

I know that's said, but I really think I should see it with my own eyes first :)

[@bacon.cheesecake]

7:30 makes me cringe a little, that cable has basically no stress relief, and the way it rubs against the spool, no way that's going to hold up over extended use. It's so janky. Who on earth thought that was okay on an expensive product?

[@bacon.cheesecake]

Also the way it twists, wouldn't trust a ribbon cable that constantly gets twisted 90 degrees back and forth in such a short length. They need to rethink that whole thing

[@CosplayKitchen]

I love how honest your reviews, ish, are. Kind of bummed about the heater issue. Also, once we are done with our upgrades to our CR10 I want to make that dragon. I will keep him in my car and call him Pumpernickel

[@BC-rt8qe]

Based on what I can see and your review, I just ordered the deluxe. Comes in June cant wait.

[@ivovass195]

Very cool indeed. Great to see innovation and continued development in the 3d printing world

[@bethisway]

It doesn't seem any 3d print company has been able to tackle the ever lasting multi Filament stravaganza.

[@MattJonesYT]

I think the coextrusion look is more appealing than when using the purge block

[@Dominick13777]

What would be the best multi material printer? (keep under $2000) Would like to print abs and tpu on the same print.

[@reprinted3D]

Would love to see you try and use the Mosaic Palette 3 with this baby!

[@OZtwo]

I love the idea!

[@extremely_average8296]

Purge blocks are only annoying because for the palette you need such a large area for multiple colors to be swapped in one layer. With this I feel like you could have a tiny purge “tower” and it wouldn’t waste that much filament at all! Very cool!

[@corid143]

Really is a cool concept, looks wild with the cococolor

[@3DPrintingNerd]

I love the co co color!

[@corid143]

@@3DPrintingNerd so now ya just need to TM “co co color”. Or just keep on keeping on, like you do.! :)

[@fhuber7507]

How would doing the purge in the infill work?

[@HavoCentral]

Isn't the dual extrusion just like the fancy two color filaments?

[@blackhawk2788]

Its 0300 and my mind cannot comprehend what i just saw 🤯🤯 always learning on these channels 😂 i seem to always go back and forth to your vids and devons from make anything…..educational and entertaining

[@XMCRacing]

I am excited to see how far this tech goes. I am thinking PLA then infusing with bendable parts in TPU. I can see using this for alot of things.

[@Custom3dPrinting4U]

Thanks Joel

[@svayday]

Nice machine! This nozzle mechanism has a major drawback though, and that is the unused filament being heated, which could result into burned filament on long single color prints. I actualy personally developed basically the same dual feeder mechanism for a mechanical engineering internship at Builder 3D printers in the Netherlands, back in 2016 already. I designed it for their desktop printers back then (which they dont sell anymore), but nowadays they still use it on their large sized professional 3D printers. That mechanism also allows for color mixing.

[@kevinj9059]

Can't the Diamond hotend accomplish the same thing? Only it's 3 colors not just 2, and can be adapted to many different printer platforms.

[@reece674]

Looks like a good bit of advancement for multi material and some of the concerns you mentioned could be sorted out with a bit more R and D. Hopefully they have seen this video and are going to work on the fixes as well. I am interested to see how it would go with using soluble material as one of the filaments. I have seen where other MMU setups require a massive amount of purging so that none of the soluble material is mixed in with the actual print material.

[@bobhepple5752]

love the video are some of the models available for dual colour printing??

[@EDZEN94]

I was just getting ready to type my comment "please try 2 quantum filaments together" - Happy to see you tried that lol! Deffs one interesting 3d printer, 1 step forward its just the step was on some mud, clean up the boots and keep on goin tiertime.

[@3DPrintingNerd]

I'll be trying that again :)

[@Chriss_Workshop]

Im so sad i didnt see this kickstarter until it was over. A very cool machine i'd love to use dissolvable support material with

[@squishybrain]

I'm not sure that this printer would be able to print with PLA and dissolvable material as the print temps are too different to go through a single nozzle. If anyone has experience otherwise, let me know.

[@Bwalston910]

@@squishybrain They do show a finished print with dissolvable material but I'm not exactly sure what it is or how it was printed. They've also updated the kickstarter with separate extruder temps but I don't know if that would make a difference.

[@nashclements9795]

Fantastic content! But would it be possible for y'all to do a review on the CR10 smart pro

[@andrewabrams6343]

Ok, I just won this in last night's ProtoPasta's charity event and TBH I didn't know what I grabbed at first, and now I'm hyped, specially since I spent the last week troubleshooting a Geetech A10M which essentially does the same thing.... so frigg'n KISMET!

[@JosephOuyang]

Isn’t there exists some diamond extruder for 3 colors mixing?

[@mlubecke]

Game changer…. Can’t wait to see version 2.0. I would love to see a Spider-Man Red and blue print.

[@ToniCorvera]

Very interesting concept, it's nice to see something different, even if it needs a few more iterations and refinements

[@jadesaber99]

All together it seems like a really good prototype but I really think they should take some of what you said could improve it to heart I hope to see more from this printer soon and how it evolves in the future

[@3DPrintingNerd]

Agreed - as a prototype this feels very polished.

[@mrgatez2007]

Question ??? Witch video if it with the link to the ender 5 plus custom profile, I lost it after a Linux OS reinstalled

[@Eigengrau608]

Is there a reason purges couldn't be performed on the infill?

[@Aidenn23]

There’s no option for it in the slicer. Another reason the software is the only thing holding it back.

[@privateprivate8366]

Feels like this is closer to the start of 4 color process in the graphics industry, perhaps, more than the Bambu Labs X1C?

[@animefreak7098]

Has anyone thought of using the print's infill to purge filament? I think there could be some serious potential there, since it's printed anyways but not seen.

[@3DPrintingNerd]

Oh yes, many have, but not everyone implements it.

[@VincentGroenewold]

Less waste than 3D printing is already causing? Yes please! :) I 3D print, but man do I dislike the waste it generates, I always try to use as much cardboard and recycled stuff as possible.

[@johnphetchareun8835]

What do you think about Sovol's solution with the Sovol SV04?

[@krypticvoyce]

I’m working on a dual extruder ender 3 that is going to be 2 in 1 out . With the intent of not using a purge block but changing in the infill to minimize bleed over. Long way to go. Though I’m sure someone already did this

[@doublehuman94]

I wonder if you can do a cold pull on it?

[@rsmeaton]

4:51 - that puddle at the gas station

[@johnbrooks7350]

Watching this after the advent of Bambulab….it’s kinda funny. Obviously the no purge block is interesting but I feel like the ease and versatility of the Bambulab has made the waste from multicolor prints almost a “worthy sacrifice” for the ease.

[@hanelyp1]

A use case for the hardware, if the slicer supported 3D textures it could do wood grain, marble, etc.

[@BitWalker]

Looks cool now stick a mosaic on each extruder

[@scottladuke720]

hey Joel what is your favorite printer

[@markchristy9704]

Doesn't the Palette product line also do this - multi-color/material w/ no purge block?

[@3DPrintingNerd]

It does this with some models via purge to infill

[@Manxer]

How is this different than the Geetech A10M with the Y nozzle?

[@JonS]

Nice preview Joel. Lots of food for thought about this and where it could lead to with some refinement (maybe both other companies). Did you try tuning the retraction on your own filaments to see if it would clean it up at all?

[@3DPrintingNerd]

I didn’t have a chance to yet but it’s planned to to try some tuning prints to see what I can do.

[@JonS]

@@3DPrintingNerd Good to know improvements should be possible.

[@FedericoAlbano83]

To me another characteristic that passes unnoticed is the very peculiar cinematic. A cartesian with a cantilever y, that is very unusual.

[@armandoa2484]

The purge blocks are the main reason I will not use multi material prints, just to much wasted plastic.

[@urbanbuffalo692_8]

That ther is something i have been looking for i myself do not mind they way it prints the two filiments i like the blending of the colors it but on that test cube is abit of a different story could use some work on thar area those prtints you showed were awsome cant wait to see more of your prints from this machine

[@thercchannel5757]

wjere i can find the dragon stl? Any link please

[@DeepBrotherjeddah]

I keep thinking if this printer deffrent from Geeetech A20M? It's same idea.

[@3DPrintingNerd]

I honestly don’t know, I have zero experience with the A20. I do know A20 runs Marlin, right? This does not.

[@DeepBrotherjeddah]

@@3DPrintingNerd yes it's, here video review kzbin.info/www/bejne/rV69i5qmiLmXgpo

[@thespacecowboy420]

I like the beefy. Trying to build industrial machines from 2020 is hitting the limit even 2 years later.

[@Alluvian567]

Love the idea of the mixing at the head. Still just a gimmick unless the software is brought up to snuff though. Hopefully it will get some traction and better versions will come out.

[@3DPrintingNerd]

I _really_ hope they give some love to the software and the firmware!

[@dtaggartofRTD]

looks like a very prototypey unit. Looks very promising.

[@3DPrintingNerd]

Agree. It’s feels like a polished prototype.

[@giuseppe974]

I think this is the first step towards quadricolour printing

[@index7787]

would love to see co-extrusion of a rigid and a flexible filament, especially on vase mode. semi-flexible???

[@hor3d621]

@3D Pinting Nerd Could you please test what happens when the temperature sensor is "disabled"? Unfortunately, my Cetus MK 3 does not have a software temperature fuse. Luckily I was there when my nozzle reached 360°C. I then wrote to Cetus. I hope this source of danger has been removed.

[@heartsky]

Seems four color should be right around the corner...I mean it's coming right?

[@ntx9design392]

Very cool. I hope that components of this print head is available at some point. It already appears to work better than the M3d Crane mixing head. I would love to see more detail of how the nozzle and hot end assembly works.

[@republicoflouisianametals3492]

On their indiegogo page they have several videos that show cutaways that explains the 2in1 setup

[@Nordic_Mechanic]

perfect ! we dont need waste

[@3DPrintingNerd]

There is still SOME waste for some models, but it usually does reduce the amount of waste generated.