RE: Core One MMU3 Prototypes
While I think it's intriguing to see discussions of alternate approaches to how the MMU3 works, from my vantage point it's the first time I actually have a multi color/multi material system that really WORKS (let's ignore the XL, which works very differently). Never got the MMU2 to work reliably, hated the Mosaic Palette with a passion. So while I certainly hope they rethink the buffer system, placement, etc., I sincerely hope they stick with the current mechanism, at least for now.
Formerly known on this forum as @fuchsr -- https://foxrun3d.com/
RE: Core One MMU3 Prototypes
I have to agree. MMU3 is very reliable from my point of view. Only thing I had to care of was its footprint. I solved it partially with own dryboxes, but SharkV6 is much better than mine. And Coreboxx is absolutely ok for me.
RE: Core One MMU3 Prototypes
Option 2 please, I don't have room for option 1!
RE: Core One MMU3 Prototypes
I would very much expect that they stick with the MMU3 mechanism for the time being -- to have a working solution soon. It's just that I have not seen a convincing way to integrate it with the Core One. With the Core One itself being a relatively sleek and compact design, it just highlights how bulky and complex the MMU3 solution is.
The MMU on top gets in the way of accessing the printer mechanism (and totally spoils the clean look), the 5-spool rack on top looks very top-heavy (and a tad wider than the printer?!), the buffer and those multiple PTFE tubes to thread the filament through remain unchanged... And at the same time, the low-cost market gets flooded with Bambu AMS knock-offs which show how simple it could be. I sure hope that there will be a "Next MMU" from Prusa eventually.
RE: Core One MMU3 Prototypes
I agree the current MMU3 unit is very reliable. However Prusa's philosophy of upgradability has resulted in a 'bolt on' approach to product development. I think someone called it a Frankenprinter. It works, but takes up a lot of space and requires much manual intervention. Their strength is becoming a weakness. At some point a complete redesign will be required to create a turn-key solution and remain competitive.
I have to agree. MMU3 is very reliable from my point of view. Only thing I had to care of was its footprint. I solved it partially with own dryboxes, but SharkV6 is much better than mine. And Coreboxx is absolutely ok for me.
RE: Core One MMU3 Prototypes
Exactly at some point you need to say "The current product isn't upgradable to it as we start our new line of upgrades" The Core One being a COREXY printer would have been a perfect time to do this. With that said.. I love the Prusa upgrade process and support, but at some point you make enough significant changes, it is ok to draw a line in the sand and start a new series...
RE: Core One MMU3 Prototypes
Shark V6 didnt work for me. I printed the whole thing and the buffer doesn't work - when retracting the filament it follows the path straight back to the spool rather then go up into the buffer. In order to solve this the PTFE between the drybox and the buffer needs to be quite short - this introduces some extra drag/friction so that when the filament is retracted it goes into the buffer - but then introducing the friction means the MMU has to work harder to pull the filament down in the first instance, which can also cause filament errors when printing bevcaus eit cant pull filament as easy.
Was too much hassle so I scrapped it - just use the dryboxes instead (considering I had already printed them) with the original Prusa buffer, and all works perfect.
I have to agree. MMU3 is very reliable from my point of view. Only thing I had to care of was its footprint. I solved it partially with own dryboxes, but SharkV6 is much better than mine. And Coreboxx is absolutely ok for me.
RE: Core One MMU3 Prototypes
While I agree the MMU3 works well, and while I also agree a new solution could have been implemented into the Core One by default - maybe have a Core One single and a Core One MMU option where its built into the enclosure - I would still be quite happy with the current MMU3 bolting on to the top rear of the Core One and feeding to the extruder from the top rather then the side. I'm not too sure on having it on the top center and covered with a large add-on plastic cover - I kinda like the 'raw' look of the MMU on top, and seeing it working, as well as having easy access rather than hide it away.
Because I want to maintain easy access I'm happy to stick with option 1 TBH. I have a shelf above the printer for my spools so thats not an issue. I'm just after the most direct route, and the easiest approach with minimal chance of introducing issues.....!
RE: Core One MMU3 Prototypes
Thank you for the info. So its good that I decided to skip it in favor of coreboxx or prusa solution any comes before my upgrade kit.
RE: Core One MMU3 Prototypes
Thank you for the info. So its good that I decided to skip it in favor of coreboxx or prusa solution any comes before my upgrade kit.
Definitely
RE: Core One MMU3 Prototypes
I keep my MMU3 installed on the MK3.5 with REVO.
I am not sure if I will purchase a new MMU3 for the CORE One. I will purchase only an updated big model like the Bambu Lab AMS, where the rolls are all in the printer. Now with my MMU3, positioning the buffer and the dry boxes with rolls is a pain, and requires lots of space.
Regards
RE: Core One MMU3 Prototypes
Maybe this could be an option for you ^^
https://www.printables.com/model/1181433-mmu-spoolholder-with-in-built-filament-buffer-syst
RE: Core One MMU3 Prototypes
Very nice. At the moment I store the filament in dry boxes I designed, and on some Polymaker Dry boxes. I don't think I could implement an internal buffer, since the boxes are too small.
But I will think on it. 😉
Regards
RE: Core One MMU3 Prototypes
I've just picked up an MMU3 for a good price. I need my printer to be able to make the parts for it (kit version). But hopefully that when my core one arrives, there will be a updated revised to the MMU system to work with the C1, fingers crossed.
RE: Core One MMU3 Prototypes
You dont want an AMS.
It looks pretty. The contained solution is good. Self rewinding spools are great. It works great as well to be fair. But the waste is incredibly high in comparison to the MMU3. Also the length of time it takes to print a multicolour model is also much longer then the MMU3. I'm creating a new video on a more detailed look at the MMU3 at the moment.....but I would use my Bambu for coasters, name plates, and other relatively flat items where I only need multicolour for the first 2-3 layers, and I use the MMu3 for actual models or anything larger.......
I keep my MMU3 installed on the MK3.5 with REVO.
I am not sure if I will purchase a new MMU3 for the CORE One. I will purchase only an updated big model like the Bambu Lab AMS, where the rolls are all in the printer. Now with my MMU3, positioning the buffer and the dry boxes with rolls is a pain, and requires lots of space.
Regards
RE: Core One MMU3 Prototypes
You dont want an AMS.
It looks pretty. The contained solution is good. Self rewinding spools are great. It works great as well to be fair. But the waste is incredibly high in comparison to the MMU3. Also the length of time it takes to print a multicolour model is also much longer then the MMU3. I'm creating a new video on a more detailed look at the MMU3 at the moment.....but I would use my Bambu for coasters, name plates, and other relatively flat items where I only need multicolour for the first 2-3 layers, and I use the MMu3 for actual models or anything larger.......
I keep my MMU3 installed on the MK3.5 with REVO.
I am not sure if I will purchase a new MMU3 for the CORE One. I will purchase only an updated big model like the Bambu Lab AMS, where the rolls are all in the printer. Now with my MMU3, positioning the buffer and the dry boxes with rolls is a pain, and requires lots of space.
Regards
RE: Core One MMU3 Prototypes
@iftibashir I did not meant purchasing a new AMS device (Bambu Lab style), I meant purchase a new MMU One that works exactly like the MMU3, but the MMU One, the buffer, and the rolls boxes are all on top or on side of the CORE One printer, but not around the table. 😉
RE: Core One MMU3 Prototypes
Plutonic ideal would be dual tool each connected to a 4 spool mmu3
RE: Core One MMU3 Prototypes
My idea is exactly this, possibly released and supported by PRUSA. This is an add-on of the MMU3, but the MMU4 may have this replacing the buffer or something like this with the MMU3 electronic and mechanic inside.
CORE One CoreBox for MMU on Printables
RE: Core One MMU3 Prototypes
I chose option one only because I would like to have easy access to the MMU3 during printing, for example doing color changes and yes, the occasional mis-feed or other problems that will happen (mostly my mistakes). Only problem is leaving the filament exposed to the air, this has giving me problems where the filament breaks in the buffers. I like the Coreboxx setup but not where the MMU3 is located, as that would not work for me because I have no access to the right and back of the printer without having to move it around and if the printer is running and I need to access the MMU3 it will be more of a pain then dealing with just the MMU3 by itself.