https://forum.prusa3d.com/forum/original-prusa-i3-mmu3-hardware-firmware-and-software-help/spooljoin-doesnt-recognize-when-filament-is-out/ Prusa3D Forum Discussion Board en-US Wed, 17 Jun 2026 14:03:26 +0000 wpForo 60 https://forum.prusa3d.com/forum/original-prusa-i3-mmu3-hardware-firmware-and-software-help/spooljoin-doesnt-recognize-when-filament-is-out/#post-767827 Fri, 24 Oct 2025 13:16:49 +0000 Have you found a fix for this yet?  I am running into the same issue and haven't found much on Google in regards to this.

]]> Hardware, firmware and software help AalcoSteve https://forum.prusa3d.com/forum/original-prusa-i3-mmu3-hardware-firmware-and-software-help/spooljoin-doesnt-recognize-when-filament-is-out/#post-767827 https://forum.prusa3d.com/forum/original-prusa-i3-mmu3-hardware-firmware-and-software-help/spooljoin-doesnt-recognize-when-filament-is-out/#post-763916 Tue, 09 Sep 2025 21:28:36 +0000 I have a core one with mmu3 and tried spooljoin for the first time. When the filament ran out, I watched the 2 filament sensors indicate it knew there was no filament. However , It continued to print in mid air. am I doing something wrong. The sensors seem to work fine.

]]> Hardware, firmware and software help Brad Allen https://forum.prusa3d.com/forum/original-prusa-i3-mmu3-hardware-firmware-and-software-help/spooljoin-doesnt-recognize-when-filament-is-out/#post-763916