Fast Arch is a print setting that allows you to print orthodontic models up to two times faster than standard print settings. A Fast Arch print setting is currently available for:

Select Fast Arch print settings when preparing your orthodontic model for printing in PreForm.

To select Fast Arch Printing in the Dental Workspace:

1. If you are printing with Fast Arch Printing for the first time or are switching between build platforms, recalibrate your printer’s Z-axis by following the instructions for your printer.
   • Form 3B and Form 3B+: Fine Tuning Formlabs LFS printers
   • Form 4B and Form 4BL: Fine tuning (Form 4 and Form 4L generation)
2. Open PreForm and select Dental Workspace. The Dental Workspace homepage appears.
3. Under the heading What Would You Like to Print? select New Preset to create a new preset for orthodontic models. The New Preset page appears.
   • If this window does not appear, click Preset on the left side of the 3D scene.
4. Under Choose a Template, select your printer type. Ensure that Orthodontic Models is selected as a template. The page updates Material Settings and Model Settings to reflect the template’s recommendations.
5. Click Material Settings. The Material Settings panel appears.
6. Select your material and layer thickness. The resins and layer thicknesses for which Fast Arch print setting is currently available are listed in the table above.
7. Under Choose Print Settings, select Fast Arch. A blue box appears around your selection.
8. Enter or update the Preset Name under Job Setup.
9. Click Save & Apply to create your preset. The Dental Workspace home screen reappears with your preset listed under What Would You Like to Print?.
10. Select the preset in the Dental Workspace homepage to apply Fast Arch Printing to your next orthodontic model.

If you experience a print failure when using Fast Arch Printing after recalibrating the Z-axis, contact Formlabs Support or your authorized reseller.