The Form 4L Resin Mixer improves material performance by keeping resin homogenous in the tank during the printing process. A Resin Mixer is required anytime you are printing. Resin Mixers typically last for the lifetime of your printer.
For convenience, we recommend having one Resin Mixer for each Resin Tank.

Form 4 Build Platform Flex
Formlabs Grey Pro Resin
Ultimaker PLA Orange
Formlabs Rigid 4000 Resin
Formlabs High Temp Resin
Formlabs Clear Resin 