![Upgrading My Prusa Farm: MMU3, Spool Holders, and a Jessie Spool Extender](https://images.squarespace-cdn.com/content/v1/6301a1c8849f5807c7d432b0/1735877089572-FAI7TXZTUL21RRH0GWOL/prusa-mk4s-cobra-spool-holder-setup.jpg.jpeg)
Upgrading My Prusa Farm: MMU3, Spool Holders, and a Jessie Spool Extender
Explore how I upgraded my Prusa farm with MMU3 spool holders and a custom Jessie Spool Extender. Learn how these solutions streamline filament handling, prevent spool drift, and optimize enclosed setups for MK4 and MK4S printers.