Build platforms are consumables and require replacement in cases of wear and tear. Replace damaged build platforms to prevent print failures and to keep printing seamlessly.

Tools used to remove parts can scratch the metal surface of the build platform. Scratches on the build platform are normal and may improve part adherence during the initial layers of printing.

Too many scratches on the build platform creates an uneven surface for printing, which can cause print failures. Sand an overly-scratched build platform to recreate a flat, even surface for your prints. Formlabs recommends using a coarse sandpaper (120–80 grit) for sanding the build platform.

To sand the build platform:

1. Clean the build platform surface of any liquid resin. Allow any solvents used to fully dry.
2. Sand the build platform’s surface from left to right to and front to back. Be sure to sand the entire surface of the build platform.
3. Wipe down the build platform with a paper towel or cloth to clean any metal or dust from the build platform.

When finished, the entire build platform should be evenly scratched. None of the original surface texture should be visible.

Build platform handles may crack from drops, improper insertion into the printer, or misuse. Make sure to only clean your build platform with an approved solvent, such as isopropyl alcohol (IPA) or tripropylene glycol monomethyl ether (TPM), as unapproved cleaning solvents may also cause damage. Continued use of these build platforms can lead to the handle separating entirely from the build platform and falling into the resin tank.

The build platform handle for Formlabs desktop SLA printers is replaceable:

• Form 4 generation
  • Download the STL file of the build platform handle and print it.
  • Replace the build platform handle by following the repair guide Replacing the Form 4 build platform handle.
• Form 3 generation
  • Download the STL file of the build platform handle and print it. Replacement build platform handles can also be purchased from the Formlabs web store.
  • Replace the build platform handle by following the repair guide Replacing the build platform handle (Form 2 and Form 3 generation).
• Form 2
  • Download the STL file of the build platform handle and print it. Replacement build platform handles can also be purchased from the Formlabs web store.
  • Replace the build platform handle by following the repair guide Replacing the build platform handle (Form 2 and Form 3 generation).

If you see any cracks in your build platform’s handle or if you received a build platform with a damaged handle, please contact Formlabs Support or a certified service provider.

In very rare cases, the coating on the build platform’s side surfaces may flake and fall into the resin tank when the build platform is in use. These build platforms require immediate replacement and disposal. To clean the debris from the resin tank, you may filter the resin or print a cleaning mesh.

If you are experiencing this issue, please contact Formlabs Support or a certified service provider.