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                  1. Support
                  2. Printer features
                  3. Advanced filtration system for Prusa CORE One
                   

                  Contents

                  • Filtration menu
                  • G-codes

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                  Advanced filtration system for Prusa CORE One

                  Relevant for

                  CORE One family
                  CORE One+
                  16 comments
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                  It is possible to have a HEPA filter on the CORE One/+ and the CORE One L. The XL enclosure comes with a HEPA filter. The filtration can be adjusted in the printer menu in Settings -> Chamber Filtration, or in the Tune menu during printing.

                  Studies have shown that most of the commonly used 3D printing materials should be safe; however, some are marked as "Requires filtration."

                  When enabled, the Advanced Filtration System also takes over chamber temperature control and disables the cooling fans (except for critical overheat situations).
                  CORE One/+, CORE One L
                  XL with Enclosure

                  Filtration menu

                  On the menu, you can choose between having the filtration off (None), using the standard HEPA filter (Adv. Filtration), or using your own filter without a dedicated filtration fan (DIY). In the DIY mode, the existing cooling fans handle both cooling and filtration.

                  Filter Usage: Hours of filter usage. Note that this value will be reset if a hard factory reset is performed.

                  Change Filter: Select this option when you change the filter, and the Filter Usage counter will reset.

                  Print Filtration: Toggles chamber filtration during the print.

                  Minimum Power: Sets the minimum power level for the additional filtration fan. The printer will adjust the fan speed based on the chamber temperature control system, up to the “Chamber Fans Limit” setting. Note that a minimum of 40% is needed for effective filtration of the entire chamber.

                  Post-print Filtration: Toggles chamber filtration after the print is finished. Keeping this option on is strongly recommended.

                  Post-print Duration: Sets the duration of additional filtration after the print is complete.

                  Post-print Power: adjusts the power level of post-print filtration to suit your needs. Note that a minimum of 40% is needed for effective filtration of the entire chamber.

                  Filter All Materials: When this option is off, the filtration system will be activated when the filament is marked as "Requires filtration". When it is on, all filaments will be filtered.

                  G-codes

                  Starting from firmware 6.4.0, it is possible to use two G-codes to control the chamber filtration activation. Note that the G-codes will override the menu.

                  M147 will set the Automatic Filtration and Post-print Filtration to ON. M148 will set the Automatic Filtration and the Post-print Filtration to OFF. Note that the code needs to be set in the starting code before the purging code.

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                  Topics

                  • About your printer
                    • Printer features
                      • Power Panic
                      • Power-modes
                      • Satin steel sheet
                      • Textured steel sheet
                      • Smooth Steel Sheet
                      • Special PA Nylon steel sheet
                      • Nextruder filament sensor (CORE One, CORE One L, MK4/S, MK3.9/S, XL/+)
                      • Sample G-codes
                      • Buddy firmware-specific G-code commands
                      • Nextruder silicone sock (CORE One/+, CORE One L/+, XL/+, MK4/S, MK3.9/S)
                      • Cancel Object (MK4/S, MK3.9/S, XL/+, CORE One+/GEN 2, MINI/+)
                      • Touch screen (CORE One L, CORE One, MK4/S, MK3.9/S, MK3.5/S, XL/+)
                      • Accelerometer (CORE One, MK4/S, MK3.9/S)
                      • GPIO Module
                      • Network Connection (CORE One L, CORE One, MK4S, MK3.9S)
                      • Flashing custom firmware (CORE One L, CORE One, MK4/S, MK3.9/S, MK3.5/S)
                      • PP steel sheet
                      • Safety and safety timer messages (CORE One, CORE One L, XL, MK4/S, MK3.9/S, MK3.5/S)
                      • Advanced filtration system for Prusa CORE One
                      • Offline Workflow with Prusa 3D Printers
                      • Prusa CORE One to CORE One+ upgrade (community version)
                      • Saving Log File (CORE One, CORE One L, XL, MK4/S, MK3.9/S, MK3.5/S, MINI)
                    • Printer description
                    • General Information

                  8 comments

                  Log in  to post a comment
                  daftcashew
                  •
                  So advanced filtration disabling the chamber fans is normal then? I was a bit confused when I noticed that in the settings. Is there ever a situation where both the chamber fans and adv. filtration blower are all enabled?
                  Reply
                  Jan Kratochvíl
                  •
                  Hello. Yes, when you enable advanced filtration, it will disable two fans on the back, se they don't fight with the filtration fan.
                  Reply
                  cpotter485
                  •
                  The assembly was not as easy as prusa indicates. The problem is in the second to the last step - reinstalling the electronics cover. The holes in the cover did not align with the screw holes inside. I had to bend the cover a bit to get them close. Then I had assistance to press it in place while I inserted the screws.
                  Reply
                  Jan Kratochvíl
                  •
                  Hello. There should be no bending. Make sure the cover is correctly installed. It should have been fine before removing right?
                  Reply
                  Myself
                  •
                  This looks like it would blow the filtered air outside of the enclosure, is there no way of recycling the air, like the original series filtration does? Mainly to be able keep the enclosure temperature high.
                  Reply
                  Bob174
                  •
                  I just designed an enclosure to do exactly that since I couldn't find any systems that would do what you are looking for. Seemed silly to me to exhaust out the back and suck cool air into the chamber. I pull air into the filter through one fan port and exhaust it back into the enclosure.
                  Reply
                  mtbspdfrk69
                  •
                  Hey Bob174 curious if you have any files for the recerculation you mention building or adding. Thanks Doug B.
                  Reply
                  ZANTEC
                  •
                  where do I plug the fan cable on the core one L?
                  Is there only an USB-C Socket behind the printer, but the plug is not for it.
                  should i open the printer somehow?
                  Reply
                  Matthewd5
                  •
                  I have the optional $80 help a filter for my core one L and I need to find the documentation for installing the hardware

                  Thanks in advance for any guidance you czn provide
                  Reply
                  ars9
                  •
                  For those who'll stumble over the same question. The actual Core ONE filter installation guide is here: https://help.prusa3d.com/guide/how-to-install-advanced-filtration-core-one_868297#868305
                  Reply