Unfortunately, the Flashforge Finder 3 is currently not, to our knowledge, compatible with OctoPrint, Mainsail, Fluidd, or SimplyPrint. For the best 3D printing experience, consider other 3D printers that are compatible with these softwares.

Disclaimer: To our knowledge, this printer does not have a serial interface, nor runs Klipper / supports Mainsail/Fluidd. At this time (April, 2024), there isn't a lot of information about this printer online.