The Form Wash L uses either isopropyl alcohol (IPA) or tripropylene glycol monomethyl ether (TPM) to remove uncured resin from the surface of printed parts. It is also compatible with water, for use as a secondary wash if you clean your parts with TPM. Choose the solvent that best suits your application.

Before inserting a printed part into the Form Wash L:

• Review relevant safety information in the support article Safety with the Form Wash L, or consult the Form Wash L manual for more detailed safety documentation.
• Set up the Form Wash L following the instructions in the support article Receiving and setting up the Form Wash L.
• Refer to the support article Form Wash and Form Wash L time settings for up-to-date wash times for each Formlabs material.

The Form Wash L can wash printed parts either before or after they have been separated from the build platform. Use the touchscreen to raise the platform and basket mounts.

To insert printed parts for cleaning:

The Form Wash L has preset wash cycles including Quick, Default, and Long. There are also additional settings for resins for biocompatible applications. You can also set a custom wash time. You may need to adjust the recommended wash time depending on the size of your printed parts, their geometry, and the purity and type of your solvent.

To set the wash time based on printed part geometry:

1. Tap Wash Type. The Select Wash Type screen appears.
2. Depending on the geometry of the parts you are washing, tap Quick Wash, Default Wash, or Long Wash for a 5, 10, or 20 minute wash cycle, respectively.
3. Tap the i icon under each preset to learn more about the preset, or tap Guidelines to learn more about best practices for washing printed parts.
4. Tap Start. The wash cycle begins when the platform and basket lower. Ensure that the outer lid closes and is not obstructed.

Resins that can be used to create biocompatible parts, such as Surgical Guide Resin and BioMed Amber Resin, have specific wash guidelines in their Instructions for Use. To set the wash time based for biocompatible workflows:

1. Tap Wash Type. The Select Wash Type screen appears.
2. Tap GuidelinesThe Guidelines for Best Wash Results screen appears. Scroll down to select a wash time for biocompatible workflow.
3. Tap the i icon under each preset to learn more about the preset.
4. Tap Start. The wash cycle begins when the platform and basket lower. Ensure that the outer lid closes and is not obstructed.

You may find that a custom wash time, different from the presets on the Form Wash L, best fits your workflow. To manually set a custom wash time:

1. Tap Wash Type. The Select Wash Type screen appears.
2. Tap Custom Time. The Custom Wash screen appears.
3. Use the touchscreen to select your desired wash time, up to 99:99. Once you have set the wash time, tap Done.
4. Tap Start. The wash cycle begins when the platform and basket lower. Ensure that the outer lid closes and is not obstructed.

Depending on the size of your printed parts, their geometry, and the purity and type of solvent, you may need to adjust the recommended wash time.

To adjust the wash cycle time:

1. Tap the square stop icon on the Washing screen.
2. Tap Wash Type, then adjust the wash time.
3. Tap Start. The wash cycle continues when the platform and basket lower. Ensure that the outer lid closes and is not obstructed.

The platform mount and basket raise automatically at the end of the wash cycle. Solvent drains into the wash bucket as parts dry.

Carefully check and drain concave or hollow geometries that may hold additional solvent. Remove residual liquid before drying to avoid fully or partially cured resin in unwanted areas. Compressed air may be helpful to empty internal channels before drying. To begin the next wash immediately, dry the parts outside of the Form Wash L.

Allow parts to dry completely after washing and draining. Solvents that do not evaporate readily, such as tripropylene monomethyl ether (TPM), should be washed off parts with a secondary water rinse.

Tilt feature

To help with drainage, the Form Wash L tilts the platform mount to the side for two minutes after the wash cycle completes.

To disable the tilt feature:

1. Tap the wrench icon. The Settings screen appears.
2. Tap the Tilt Mode toggle. The toggle turns grey.

When a part has completed a wash cycle in the Form Wash L:

• Determine whether your resin requires post-curing.
• Refer to the support article Form Cure time and temperature settings for up-to-date post-curing settings for each resin type and resin version.
• Visit the Finishing section on the Support site for more information on additional finishing and post-processing steps.
• Clean and maintain your Form Wash L as needed.