Two Trees Sapphire Pro Firmware Link -

is a CoreXY beast, but its stock firmware often feels like it's holding back a race car. Whether you want a more intuitive interface or need the precision of advanced motion control, a firmware upgrade is the single best "free" mod you can give your machine.

A massive portion of the Sapphire Pro community replaces the stock Robin board with a BigTreeTech SKR Mini E3 V3 or Manta M8P . two trees sapphire pro firmware link

Depending on whether you want the official factory firmware or a customized version, use these resources: Official Twotrees Firmware : Visit the official Twotrees Firmware Download Page is a CoreXY beast, but its stock firmware