RE: Core One MMU3 Prototypes
As a current Bambu owner, this is the thing stopping me from swapping over to Prusa. Taking up an entire desk just isn't a viable solution for me. I can fit two P1S's in that amount of space for the same price. I can argue the cost but I can't spare the space. The CORE One needs a compact option that keeps the spools enclosed and dry and sits on top. So its option 2 for me 100%.
RE: Core One MMU3 Prototypes
I hope option 2 will come Optimal with dryer!
Would buy directly
RE: Core One MMU3 Prototypes
I would like an option 3 that takes less space like option 2 but without the integrated dry boxes and allow you to use a third party dry boxes like sunlu.
RE: Core One MMU3 Prototypes
The more I look at option 2, the less I like it.
I mean it makes for a nice, reasonably compact solution - better then option 1 by far. But I'm not sure how much I like the MMU3 itself being hidden inside. For example, at times when loading, unless the tip of the filament is reasonably rounded, and quite straight (not curved) it can get stuck on an edge and I have to open the MMU unit to re-seat and feed it through correctly. This would be difficult if the MMU3 is hidden behind all the spools. Once all loaded everything runs nice and smooth though, but even so, I feel Prusa need to make a solution where the MMU3 itself is more easily assessible IMO.
I would also like to see them remove the buffer system altogether. All they need are some retractable spool holders - just like Bambu use with their AMS system. Its not an electronic part - the use of mechanical springs would suffice.
I'm going to see how their final solution holds out. Glad its just a prototype at this stage, so will see what the final version is like. I am working on another drybox/buffer solution at the moment, which I now need to mount and test when I get some time, and if it works well I may go with option 1 for easier MMU3 access and place the spools on my shelf above the printer......
--> MK4 - MK4S - MINI+ - MMU3 - Accelerometer Guide - BambuLab A1 Combo <--
RE: Core One MMU3 Prototypes
[...] But I'm not sure how much I like the MMU3 itself being hidden inside.
[...] I would also like to see them remove the buffer system altogether. All they need are some retractable spool holders - just like Bambu use with their AMS system. Its not an electronic part - the use of mechanical springs would suffice.
I agree with both points. My preference would be a compact, enclosed case for the five spools which can be positioned flexibly: On a shelf above the printer, sitting on top of the printer (on a bridge over the MMU or in front of it), or to the side of the printer if one has the room. No buffer please, if it can be avoided -- not so much for space reasons, but to simplify the insertion of new filament spools.
Is it known why Prusa opted for the buffer originally? Are there patent concerns around the concept of reverse-driven spools to take up the slack? Or did they consider the buffer approach technically superior?
RE: Core One MMU3 Prototypes
i would think,..or hope 😀 that they change the internal structure 😀
Its one point why i don´t like my MMU ^^
RE: Core One MMU3 Prototypes
What do you think about this option: spools mounted vertically on a stand by one of the printer walls, and a buffer fitted to the recess.
I plan to make such a stand at home due to limited space by the printer and no space above it. The spools would have to have appropriate mounting due to the small distances between them, but it would allow for mounting everything at the cost of only an additional 12-15 cm of width.
RE: Core One MMU3 Prototypes
Is there already information when the MMU3 works at all? On their page it says Compatible
I wonder when they will configure it in the slicer.
It won't actually be that hard
RE: Core One MMU3 Prototypes
Had the same Idea, but a buffer in the recess sounds not that good for useability.
Maybe two on one side and three on the other or..maybe on both sides three 😀 with autorewinder, that would be awesome 😀
Prefer Option 2 but....
Love the clean professional look of option 2 but with over 36,000 MMU3 filament loads the system fails on occasion. We will need access to the unit to correct issues, remove filament and troubleshoot. I'm sure the geniuses at PRUSA can come up with a happy compromise that doesn't cost so much.
RE: Core One MMU3 Prototypes
Precisely my thoughts. I would like easy access to the main unit without having to remove/move spools and buffers out of the way to get to it......
Very interested to see what Prusa come up with!
Love the clean professional look of option 2 but with over 36,000 MMU3 filament loads the system fails on occasion. We will need access to the unit to correct issues, remove filament and troubleshoot. I'm sure the geniuses at PRUSA can come up with a happy compromise that doesn't cost so much.
--> MK4 - MK4S - MINI+ - MMU3 - Accelerometer Guide - BambuLab A1 Combo <--
RE: Core One MMU3 Prototypes
Hi, I have another idea - I´m building a Voxel3D´s COREBOXX with imtgrated buffer. Yes, Bambulabs AMS ( or similar Crealitys CFS and athers) are great with rewind motors, but they are rather expensive and not so easy to implement to Prusas printers. I have Bambu X1C with 3 AMS units and it is excellent, but the price.... So for my future Core one I want something cheeper. And MMU3 works with my MK4S well.
RE: Core One MMU3 Prototypes
I would be interested in Core One that had improvements on MMU3. I would like to see reduced time in changing filaments. There are too many tedious steps today changing filaments. 1) Pulling out the old filament, 2) Shaping the new filament to a point, 3) Straightening the new filament so it works in the MMU loading process 4) Pushing the filament down the tubes and into the buffer 5) Pushing the filament from the buffer into the loader 6) Doing a load of the filament 7) Doing a test load to the extruder. For 5 exchanges this is 35 steps. Wish this process was easier.
RE: Core One MMU3 Prototypes
The Coreboxx looks like the type of solution Prusa is looking to implement with Option 2, but my main issue still exists. My printer has its back to a wall, and I don't want to have to move it around - all 22KGs of it - when I need to service or get to the MMU3 for a filament load error for instance. I think I would rather have the MMU mounted as shown in option 1, with a perspex cover over the top that can be easily removed, and use my own spool/buffer solution, which is on a shelf just above the printer.......
Hi, I have another idea - I´m building a Voxel3D´s COREBOXX with imtgrated buffer. Yes, Bambulabs AMS ( or similar Crealitys CFS and athers) are great with rewind motors, but they are rather expensive and not so easy to implement to Prusas printers. I have Bambu X1C with 3 AMS units and it is excellent, but the price.... So for my future Core one I want something cheeper. And MMU3 works with my MK4S well.
--> MK4 - MK4S - MINI+ - MMU3 - Accelerometer Guide - BambuLab A1 Combo <--
RE: Core One MMU3 Prototypes
Hi, I have another idea - I´m building a Voxel3D´s COREBOXX with imtgrated buffer.
Please do share your thoughts on the COREBOXX once you've used it some. I've seen that on printables but haven't decided to take the plunge of building one yet. If you have a good experience with it, I might have to build one too
RE: Core One MMU3 Prototypes
My printer has its back to a wall, and I don't want to have to move it around - all 22KGs of it - when I need to service or get to the MMU3 for a filament load error for instance.
How about a shelf attached to that wall, just above the printer, and a filament box which sits on that shelf? With 5 PTFE tubes going to the MMU, which continues to be mounted right on top of the printer.
RE: Core One MMU3 Prototypes
How about a MMU4 /MMU One is build the way, you don´t need to tinker that much anymore.
Atm the only thing that makes the MMU3 a Prusa product is the name, but not the reliability or ease of use like Prusa printers.
It feels more like a cheap thirdparty addon and not a Prusa product at all to me.
RE: Core One MMU3 Prototypes
Thats exactly what Im doing 😉 Just waiting for the shelf to arrive and it will be going up just above the printer for my drybox/buffer system to sit on. The run from the drybox to the MMU3 will therefore be quite short.
I purchased one of those adjustable shelves with the rail system, so when I do eventually get a core one I can just unhook and raise the shelf a little if need be so it will work exactly the same with a Core One under it instead......well, that the plan.......lol
My printer has its back to a wall, and I don't want to have to move it around - all 22KGs of it - when I need to service or get to the MMU3 for a filament load error for instance.
How about a shelf attached to that wall, just above the printer, and a filament box which sits on that shelf? With 5 PTFE tubes going to the MMU, which continues to be mounted right on top of the printer.
--> MK4 - MK4S - MINI+ - MMU3 - Accelerometer Guide - BambuLab A1 Combo <--
RE: Core One MMU3 Prototypes
I disagree, once it's hooked on and loaded up, it's actually very reliable......
How about a MMU4 /MMU One is build the way, you don´t need to tinker that much anymore.
Atm the only thing that makes the MMU3 a Prusa product is the name, but not the reliability or ease of use like Prusa printers.
It feels more like a cheap thirdparty addon and not a Prusa product at all to me.
--> MK4 - MK4S - MINI+ - MMU3 - Accelerometer Guide - BambuLab A1 Combo <--