Printers
L1 Printer

Maintenance

5min

Like all equipment, the L1 needs regular maintenance to remain in good working condition. Use the following recommendations to keep your printer running smoothly.

Information is organized by the frequency of the maintenance tasks.

  • Weekly
  • Monthly
  • Quarterly
  • Annually
  • As Needed

For maintenance of third party accessories (oxygen supply, chiller, etc.) consult the manufacturer manuals.

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L1 Printer

Clean Display

  1. Remove the platform or make sure the print queue is empty to avoid starting a print accidentally during cleaning.
  2. Gently clean the front display buttons with IPA and a shop towel to remove resin residue.
    • Do not use IPA wipes, which have a high water content.
    • Do not use acetone.
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Inspect Spill Window

The light engine projects light through the spill window onto the cassette window to cure resin. If the spill window is not clean, it may affect part quality.

  1. Remove the platform.
  2. Remove the cassette.
  3. Inspect the light engine spill window inside the projection volume for any smudges, resin, dust or debris that will affect print performance.
  4. If dirty, contact Carbon Support. Do not attempt to clean.
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Inspect Schunks

Clean schunks are important to ensure the proper seating of the platform and cassette.

  1. Remove the platform.
  2. Remove the cassette.
  3. Inspect the 4 schunks on the underside of the build arm and the 4 schunks on the deck for any resin or debris that will affect schunk functionality.
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  1. If dirty, first place a clean tray on the deck to keep any debris from falling onto the light engine spill window.
  2. Apply IPA to a lint-free towel and clean the mating surface of each schunk.
  3. Do not apply IPA directly to the schunk.
  4. If there is cured resin on schunk, or you cannot get the schunk fully clean, contact Carbon Support.
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Inspect Heater Glass

⚠️ Burn hazard: The heater may be hot. Allow to cool before servicing.

  1. Remove the platform.
  2. Remove the cassette.
  3. Inspect heater glass for any resin or particulate that will affect print performance.
  4. If dirty, contact Carbon Support. Do not attempt to clean.
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Cassette

Clean underside of window

A haze of dust can build up on the bottom of the window over time and must be removed.

  1. Remove cassette from printer. Leave cassette on the cassette cart.
    1. Note: Cassette must be clean.
  2. Shine a light up from the bottom of the cassette and look down from the top of the cassette to search for contamination.
    1. Contamination looks like clouding or haze on the underside of the cassette window.
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  1. Take a presaturated IPA/DI water wipe and fold in half twice.
  2. Wipe gently across the underside of the cassette window from one side to another in a single pass.
  3. Refold to expose a new, clean surface of the wipe.
  4. Repeat side to side wipe, refolding each time until entire window surface has been cleaned.
  5. Repeat the wiping process with a presaturated acetone wipe.
  6. After cleaning the underside of the cassette window, inspect for any remaining haze.
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Note: The three images below show the underside of the window as it goes through the cleaning process.

A) Hazy underside of window.
A) Hazy underside of window.

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Clean Cassette Schunks

  1. Remove the cassette from the printer. Leave on the cassette cart.
  2. Inspect the 4 schunks on the underside of the cassette for any resin or debris.
  3. If dirty, apply IPA to a lint-free towel and clean the mating surface of each schunk.
  4. Do not apply IPA directly to the schunk.
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General Lab

Clean Working Surfaces

  1. Use IPA and/or acetone to clean benchtops.
  2. If used, change bench coverings.
  3. Clean floor to remove debris and resin spills/smears/drips.
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Check inventory of lab supplies

  1. Make sure there are enough consumable supplies available. If not, order more. These are examples of important supplies:
    • IPA
    • Acetone
    • Gloves
    • Shop towels
    • Wipes
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L1 Printer

Clean the door

  1. Clean the inside and outside of the door, following instructions from M1/M2 Printer Maintenance.
  2. If resin needs to be removed from the door, follow guidance here.

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General Lab

Clean and/or replace any soiled PPE items.

  1. Check lab coats, glasses, and any other reusable personal protective items for contamination.
  2. Wash or replace soiled items.
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L1 Printer

Inspect fan filters

  1. Find the intake fan ports located on the back of the L1 printer.
  2. Pull the black plastic fan filter cover off with your hands. If necessary, you may use a flat-edged tool to aid in removal, taking care not to scratch the paint.
  3. Inspect the filter. If it is discolored, change the filter.
  4. Discard the dirty filter in the regular waste bin.
  5. Insert new filter. There is no designated front or back side, so either orientation is sufficient.
  6. Gently snap the fan filter cover back in place.
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Chiller

Change coolant

  1. Typically the coolant should be changed once per year.
  2. Coolant will need to be added in the event of a low fluid alarm. Consult the manual for more information.
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L1 Printer

Restart after a power surge or outage

1

Check power connections

  • L1 printer
  • Compressed air
  • Oxygen concentrator (if used)
  • Chiller

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2

Check that power is restored in your facility

3

Ensure chiller is running

4

Check yellow LED on oxygen concentrator

5

Press the silver reset button on back of L1 printer to regain power.

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Cassette

Clean guide slots

  • Clean the guide slots on the L1 cassette as needed to remove shiny resin spots.
  • Use an acetone wipe or and acetone dampened lint free towel or wipe.
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Place the cassette on the top of the L1 Cassette Hotel or a workbench to access the guide slots.

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When not using the L1 Cassette Cart, two people are required to move the cassette.

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Updated 24 Feb 2025
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