• Peeling or separation between printed layers
• Pieces of cured parts floating in the resin tank

If a print has detached from the build platform, refer to the support article Non-adherence.

Any of the following factors, or a combination of them, can cause delamination in prints:

• Model orientation, layout, or support issues
• A print that has been paused for an hour or longer
• An older resin tank
• Loose build platform
• Contaminated optical surfaces
• Debris or contamination in the resin tank

Eine erfolgreiche Fehlerdiagnose identifiziert Symptome und schränkt systematisch die Ursache eines Problems ein. Befolgen Sie die folgenden Schritte zur Fehlerbehebung, um nach möglichen Ursachen zu suchen, beginnend mit der wahrscheinlichsten Ursache des Fehldrucks.

Step 1: Check the model in PreForm

Lateral forces on the part during the print (for example, the pulling or sliding motion of the peel process on the Form 2) can disrupt the molecular bonding between layers and separate them. This separation occurs for two reasons:

1. The part has a significant change in surface area between subsequent layers. Layers with large surface areas resist print forces better than layers with small surface areas, so a larger layer may separate from a smaller layer during the print. Reorient the part in PreForm to reduce the difference in surface area between neighboring layers.
2. Sections of the part are free-hanging or lack adequate supports. In PreForm, look for areas shaded in red, and add supports to these areas.
3. Suction cups, even small ones, can cause blowouts or delamination.
1. Reorient models to avoid creating suction cups.
2. Add drainage holes to models.
3. Suction cups can inadvertently form when rafts partially overlap, leaving an enclosed space between them. Separate your models on the build platform to prevent this.
4. Form 4 and Form 4L generation only: Enable the Cup Mitigation Enabled parameter in the Print Settings Editor to alleviate issues caused by suction cups.

Step 2: Check for pauses in printing

Extended pauses during the print can lead to delamination after the print resumes. For optimal dispensing, and to avoid long pauses during resin dispensing, use fuller resin cartridges when possible.

1. Resolve any errors displayed on the touchscreen that pause the print.
2. Enable notifications on Dashboard to receive text or email alerts for print interruptions as soon as they occur.

Step 3: Check the resin tank

Any damage or debris in or on the resin tank can block the laser at that location, preventing the resin directly above it from curing. Inspect the inside and underside of the tank for dirt, dust, and/or fingerprints. The bottom of the tank must be clean for the best print results.

1. Inspect the resin tank for debris with the plastic scraper that comes with the Finish Kit or a similar tool. Apply minimal force to remove the cured resin. Avoid using the corners of the tool to dig under the print. Do not use metal tools to inspect the resin tank.
2. Remove any failed prints and cured resin by printing a cleaning sheet.
3. Filter the resin to remove any contamination or cured resin.
4. Inspect the film at the bottom of the resin tank for scratches or wear. Excessive wear means the resin tank needs to be replaced.
5. Inspect the underside of the film for dirt, dust, or fingerprints. Clean it with Formlabs recommended steps and supplies.

1. Inspect the resin tank for debris with the tank tool.
2. Remove any failed prints and cured resin using the tank tool.
   • Form 3/Form 3B
   • Form 3L/Form 3BL
3. Alternatively, remove any failed prints and cured resin by printing a cleaning mesh.
   • Form 3/Form 3B
   • Form 3L/Form 3BL
4. Filter the resin to remove any contamination or cured resin.
   • Form 3/Form 3B
   • Form 3L/Form 3BL
5. Inspect the flexible film at the bottom of the resin tank for scratches or wear. Excessive wear means the resin tank needs to be replaced.
   • Form 3/Form 3B
   • Form 3L/Form 3BL
6. Inspect the underside of the flexible film for dirt, dust, or fingerprints. Clean it with Formlabs recommended steps and supplies.
   • Form 3/Form 3B
   • Form 3L/Form 3BL

1. Inspect the resin tank for debris with a scraper.
2. Remove any failed prints and cured resin with the scraper, being careful not to gouge or cut the elastic layer at the bottom of the tank.
3. Filter the resin to remove any contamination or cured resin.
4. If using Resin Tank LT, skip this step. Inspect the elastic layer of the standard resin tank for clouding. Severe clouding means a standard resin tank needs to be replaced.
5. Inspect the acrylic tank window on the underside of the resin tank for dirt, dust, cured resin, or fingerprints. Clean it with Formlabs recommended steps and supplies.

Step 4: Check the printer's optical surfaces

Any contamination, dust, or debris on the printer’s optical surfaces can cause the laser light to diffuse or weaken, resulting in a print failure. Contamination is most likely to occur on an exposed optical surface in the printer.

The optical surface most likely to be contaminated is the release texture, the top face of the Light Processing Unit (LPU). It prevents suction from forming between the resin tank film and the LPU, reducing peel forces between layers. Any contamination on the release texture can cause the backlight to diffuse or weaken, resulting in print defects.

1. Remove any inserted consumables from the printer.
2. Inspect the release texture for contamination.
3. Follow the instructions for cleaning the release texture.
• Form 4 generation
• Form 4L generation
4. The underside of the LPU can also become contaminated, particularly if the LPU fan filter is clogged. If you suspect that the underside of the LPU is contaminated rather than the release texture, test the LPU and Backlight Unit, then clean the LPU and LPU fan filter based on the results.

The optical surface most likely to be contaminated is the glass optical window, which sits atop the Light Processing Unit (LPU).

1. With the printer plugged in and powered on, tap the wrench icon to access the Settings screen, then tap Maintenance > Motor Moves. The Motor Moves screen appears. Tap and hold Left (<) to move the LPU housing to the middle of the printer cavity. Other controls on this screen fully sweep the LPU housing across the printer cavity and control the build platform carriage.
2. When prompted by the touchscreen, disconnect the power cable before continuing with maintenance.
3. Inspect the optical window for contamination.
4. Follow the instructions for cleaning the glass optical window.
   • Form 3/Form 3B
   • Form 3L/Form 3BL
5. If streaks are difficult to remove, contact Formlabs Support or your authorized reseller.

The optical surface most likely to be contaminated is the glass optical window beneath the resin tank that protects internal components from contamination.

1. Inspect the optical window on the Form 2 or for contamination.
2. Follow the instructions in Cleaning the glass optical window (Form 2). If streaks are difficult to remove, contact Formlabs Support or your authorized reseller.

Step 5: Check the build platform

A loose build platform can cause delamination in prints.

On Form 4 generation printers, the build platform mounts on the build platform dovetail assembly, which includes the build platform latch. Any issues with the dovetail assembly may cause alignment issues for the build platform and the LPU surface.

1. Make sure the build platform is locked in place.
2. Hold the build platform and gently rock it back and forth.
3. If the build platform rotates or moves when the cam handle is locked, contact Formlabs Support or your authorized reseller for instructions to resolve this issue.

1. Make sure the build platform is locked in place.
2. Hold the build platform and gently rock it back and forth.
3. If the build platform rotates or moves when the cam handle is locked, contact Formlabs Support or your authorized reseller for instructions to resolve this issue.

Kontaktieren Sie den Formlabs-Kundenservice oder Ihren autorisierten Vertriebspartner, wenn die oben beschriebenen Schritte zur Fehlerbehebung den Fehldruck nicht beheben.

Damit wir Ihr Problem schnell und effektiv lösen können, gehen Sie bitte wie folgt vor:

1. Diagnoseprotokolle hochladen
2. Serienname des Druckers
   • Der Serienname befindet sich auf der Rückseite des Druckers im Format AdjektivTier oder Maschine-AdjektivTier.
   • Form 4 or Form 4L generation printer: Tap Settings > General > About this printer
   • Form 3 or Form 3L generation printer: Tap the printer icon on the Home screen.
   • Form 2: Tippen Sie auf das Druckersymbol auf dem Startbildschirm. Der Bildschirm Your Printer (Ihr Drucker) erscheint.
3. Nennen Sie uns die unternommenen Schritte zur Fehlerbehebung.
   • Beispiel: „Ich habe das Modell in PreForm neu ausgerichtet. Außerdem habe ich den Harztank untersucht, aber keine Beschädigungen, Trübungen oder Ablagerungen entdeckt.“
4. Nennen Sie uns den Harz-Typ und dessen Chargennummer.
   • Die Chargennummer befindet sich im Rand der Harzkartusche.
5. Schichtdicke
   • Form 2: Tippen Sie auf das Warteschlangen-Symbol auf dem Startbildschirm. Der Bildschirm Jobs (Druckaufträge) erscheint.
   • Andere Formlabs-SLA-Drucker: Tippen Sie auf das Warteschlangen-Symbol auf dem Touchscreen des Druckers. Der Bildschirm Queue (Warteschlange) oder Jobs (Druckaufträge) wird angezeigt.
6. Relevante FORM-Dateien
   • Falls verfügbar, hängen Sie die FORM-Dateien des Modells an die Serviceanfrage an.
7. Berichten Sie uns über frühere Druckversuche sowie über erfolgreiche Drucke.
   • Beispiel: „Ich habe die Datei part2.form bereits dreimal gedruckt. Der erste und zweite Druck waren beide erfolgreich. Beim dritten kam es zu einem Fehldruck.“