Danger:
Fire hazard: IPA is flammable. When cleaning the Form Cure L, allow isopropyl alcohol to fully evaporate before starting a post-cure cycle.
Debris or contaminants may collect in the Form Cure L or on the machine’s internal surfaces over time, particularly if printed parts are not fully dried before post-curing. In order to preserve the reliability of the Form Cure L, it is important to regularly inspect and clean the machine’s various components and assemblies. The standard maintenance cycle for cleaning the Form Cure L is every one to three months of use.
Danger:
Fire hazard: IPA is flammable. When cleaning the Form Cure L, allow isopropyl alcohol to fully evaporate before starting a post-cure cycle.

Warning:
Wear personal protective equipment (PPE) when performing maintenance tasks. Use tools only as described.
Notice:
Schedule of maintenance
Follow the cleaning schedule to inspect, clean, and maintain your Form Cure L on a regular basis.
| Procedure | Frequency |
|---|---|
| Update the firmware | When indicated by Formlabs |
| Clean the turntable | Between uses |
| Clean internal surfaces and the light diffusers | Monthly |
| Clean the door | Every three months |
| Clean the touchscreen | Every three months |
Maintaining the turntable
The Form Cure L relies on the turntable’s rotation to expose part surfaces to even amounts of light and heat. The turntable must have sufficient clearance to continue rotating.
To maintain the turntable:
Maintaining interior surfaces and the light diffusers
The internal surfaces of the Form Cure L are covered in a reflective coating that reflects the light from the LEDs to ensure that parts post-cure evenly. Additionally, the primary 375 nm and 405 nm LEDs and the secondary white LEDs in the Form Cure L are covered by frosted light-diffusing panels. These light diffusers spread the light from the LEDs and ensure that parts post-cure evenly. If the reflective coating or light diffusers are damaged or covered, parts may not post-cure properly.
Resin hardens during post-curing. Cured resin blocks light and must be removed. If parts are washed but not fully dry before post-curing, certain washing solvents, such as tripropylene monomethyl ether (TPM), may evaporate and form deposits on the interior surfaces of the Form Cure L. These deposits cloud the reflective coating and prevent parts from post-curing properly.
To maintain the interior surfaces of the Form Cure L:
Maintaining the door
The Form Cure L door has double walls to insulate the post-cure chamber and internal surfaces that reflect light. A damaged or dirty door may reduce the effectiveness of the Form Cure L.
To maintain the Form Cure L door:
Maintaining the touchscreen
The LCD capacitive touch user interface displays post-cure cycle information, settings, and error messages. Damage to the touchscreen may prevent you from interacting with the Form Cure L and starting a post-cure cycle.
To maintain the Form Cure L touchscreen: