Prusa mmu2 filament buffer. This enables significantly faster heat-up times but also requires additional safety measures implemented in the Mar 4, 2021 · Recently some friends and I have installed the Prusa Multi-Media Unit (MMU2) on our printers. There are dozens of wallet style buffers out there, including the one Prusa ships with the MMU2S. They had the spools on their rollers just standing on the table behind the MMU2 printer. Prusa EasyPrint General discussion, announcements and releases Known issues and troubleshooting Nov 25, 2025 · RE: 6. It helps that I can get behind the table, but you'll find other solutions. Mains-powered AC bed (C1L) The CORE One L introduces a new AC mains-powered (120–230 V) heatbed system. 5S, MK3. If they want to stay in the consumer market, they will have to reduce the cost of their printers -- which would probably be a major effort involving engineering, manufacturing, outsourcing. Jan 19, 2026 · RE: 6. I tried several different Spool Holder designs and settled on the ‘Multiple Mechanism Auto-Rewind Spool Holder’ (https://www 5 days ago · The "buffer" system to manage retracted filament (open loops in flat cages) takes up extra space and makes loading new filament somewhat tedious. Thank you so much for making them available. Either way you must protect the slack filament somehow. 5. 0 Firmware for Prusa CORE One + & CORE One In principle you are right but this issue is a bootloader regression introduced with the new version that happens to a lot of people once in a while and can be fixed by pressing reset. . com Aug 9, 2023 · The Good * The filament buffer is much better suited to purpose, and easier to position and adjust than with the MMU2. Was happy about the proposed fix and installed the new firmware, but had this issue again yesterday, also a reboot fixed it. Prusa Research realized this, of course, and provided a solution with the MMU2S kit: the Buffer. x was released exclusively for CORE One and other printers remained on 6. 2. Aug 22, 2025 · The Buffer Unit has changed name to Rewindr, as of the Version A5 release The Rewindr is a premium rewindable spool holder for the MMU3/MMU2. 2 Firmware for Prusa CORE One Summary Adjusted RPM range check for the Print Fan test This is the stable release of firmware 6. I would like to hang filament holders on the wall behind the printer, but the buffer still takes too much space — — Hardware, firmware and software help — — Others (Archive) — Original Prusa i3 MMU2 & MMU2S — — General discussion, announcements and releases — — Assembly and first prints troubleshooting — — How do I print this? Mar 5, 2021 · Or the loose filament might catch on something in the vicinity. 5S/MK3S Jan 13, 2021 · Is the buffer really necessary? I recently built the MMU2 and have done a few small prints with it. Adjusted RPM range check for the Print Fan test The lower threshold of acceptable fan speed during the Print Fan test has been reduced from 5130 rpm to 4800 rpm. The Buffer is basically six sheets, each separated by a short distance. 9, MK3. It's quite close to what Prusa did at Formnext this year, but I can't find any pictures. I was struggling with the filament 'buffer' that came with it. It was difficult to load and only marginally effective at capturing the filament when unloading it. Original Prusa MK3S MMU3 unit - This combination is possible, but the MMU3 package contains improved extruder parts designed for the MK3S+ extruder only, as there is a different adapter-printer-mmu part for MK3S and MK3S+. 2 for the Prusa CORE One, addressing issues with certain print fans. It's compact and easy to use, opposed to the official clunky setup for the MMU. While filament switching during prints is more efficient, regarding both time and filament waste, than Bambu Labs' AMS, the INDX will be much better in both regards. Nov 22, 2025 · This is the second release candidate for the upcoming firmware 6. This change improves Jan 26, 2026 · Prusa CORE One extruder clicking Hello, I’m trying to print a lithophane lamp, but during the print the extruder occasionally stops feeding filament and starts clicking. Jan 24, 2026 · RE: What's next from Prusa? Once INDX is out (on the Core One and L) and fully stable, I think Prusa reaches a divide. I abandoned this early on with my MMU2, but actually prefer the stock buffer now to the spool rewinders that I had been using. Pulling the filament up rolls them against a box or the wall, so they can't move there. 3. 9S, MK3. Prusa Spare Parts: Original Prusa Anti-Vibration Feet MK3S - Original Prusa Heatbed-Einsy Power Cable MK3S - Original Prusa Belt GT2 X-Axis MK2S/MK2. I doubt I found the Easter Egg, but I thought I saw one power cable connection to the xBuddy that was upside down in one view, but correct in the next. Nov 25, 2025 · RE: 6. Compatible with the Prusa MK4, MK3, CORE One, Original Prusa Enclosure and more. 2 Firmware for Prusa CORE One L I had the "Nozzle Cleaning Failed" errors several times before this update, interestingly every time a reboot of the printer fixed them (retry always failed, printing with "ignore" was fine as well). Jun 13, 2019 · All buffers are just an optimization to reclaim some of that space. 0 for the Prusa CORE One, MK4S, MK4, MK3. 4. 0 Firmware for Prusa XL Elsewhere I read that the best approach to the incompatible GCode warning was to go to the printer and in the settings turn off the GCode check. I've seen pics where some ingenious people have used empty spools to wind the open air filament a few times and significantly reduce their footprint. Nov 11, 2025 · This firmware adds full support for the Prusa CORE One L and its unique hardware, including the new features detailed below. (as seen in the images below) MK3S&MMU2S had a similarly looking, but different, filament sensor assembly than MK3S+&MMU2S. Apr 14, 2025 · 6. I'm really frustrated that the buffer takes so much space on my table behind the printer, and causes the spools to be farther from the printer, and I'm trying to find better solutions. Jul 27, 2023 · Prusa MMU2 Selector with magnet by darBis Prusa MMU2 PTFE Holder M10 Passthrough Adapter by vertigo235 Prusa MK3 MMU2 rear PTFE tube holder by JustMe Improved MK3S MMU2S Filament Sensor Mount by 01chevyguy MK3S+ MMU2S Precise Calibration Chimney by David and several buffer mods such as: Gravity Spoolholder for MMU2S by Michal Fanta — — Hardware, firmware and software help — — Others (Archive) — Original Prusa i3 MMU2 & MMU2S — — General discussion, announcements and releases — — Assembly and first prints troubleshooting — — How do I print this? Jan 21, 2020 · The baffling filament buffer for the Prusa MMU2S multi-material upgrade [Source: Fabbaloo] The second problem with the spool feeding configuration was this curious apparatus known as “the buffer”. It reunifies the firmware development branch after the temporary split during the CORE One launch, where 6. → Find out more on LGB-Engineering. x – along with Jul 5, 2025 · RE: Prusa Core One - VIDEO BUILD GUIDE Excellent build instructions! Clear and concise. 5, MINI & XL. ilj uow iin ldu wue mdr uml fwu ysn vcg lde wxj zzb qrm imi