Anyway to upgrade from MMU1 to MMU2 now that the kit is no longer available?
Hi All,
Is there any way to upgrade from the MMU1 to MMU2 now that the past upgrade kit has been taken down from the Prusa shop? I wish I would have picked it up when it was available as it was only $150 for the upgrade kit for those with existing MMU1's. Now it seems the only way is to buy the full MMU2 upgrade kit is at twice the price ($300) and support can't offer the previous discount that was available for the MMU1 to MMU2 kit.
My MMU1 seems to have really gone down hill lately and is constantly jamming during prints due to retraction settings needed for the bowden extruder system. I get horrible prints if i shorten the retraction settings though so I'm stuck between a rock and a hard place. 😫 😖 😪
RE: Anyway to upgrade from MMU1 to MMU2 now that the kit is no longer available?
Just for interest, could you please try the following link, whilst logged in, to the eShop
https://shop.prusa3d.com/en/upgrades/185-multi-material-upgrade-kit-from-mk2-mmu-to-mk25smk3s-mmu2s.html
I typically print with 2mm retraction in the mmuv1. have you replaced the extruder liner PTFE recently?
have you dehydrated your filament recently?
Look for a disenchanted mmu2 owner and see if you can snag an unloved MMU2.
The MMU1 to MMU2 upgrade used three extruder motors off the MMU1 to power the Mk2.5 extruder, the MMU2 Idler drum and the filament feed rollers (there was a 5mm to 5mm shaft coupler to provide the longer shaft, needed for the five filament feed hobbed gears).
also the mmu1 to mmu2 upgrade used a different data cable and a piggyback power cable
It woukd be easier to take the power directly from the PSU connectors, there are three pairs of 12 voly connectors of which two pairs are normally in use on a mk2 printer. the data cable
Here is a link for the Mk2 MMUv1, to Mk2.5 MMUv2 upgrade assembly guide
https://manual.prusa3d.com/Guide/4.+Upgrading+to+MMU2S/1164?lang=en
https://manual.prusa3d.com/c/Original_Prusa_i3_MK2S_MMU1_to_MK25_MMU2_upgrade
you will also need this assembly guide, note the differences for the Mk2.5 printer connections
https://manual.prusa3d.com/c/Original_Prusa_i3_MK3S_to_MMU2S
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK