Resin 3D Print Exposure Calculator

Select your printer and resin type, set your layer height, and get a starting exposure time for normal and bottom layers - plus lift speed and anti-aliasing recommendations. Use the RERF guide below to fine-tune your exact settings. Everything runs in your browser, nothing uploaded.

MSLA & DLP ? Normal + bottom exposure 6 resin types Lift speed Anti-aliasing ? RERF guide ?

Printer

mW/cm² 40

Resin

Layer height

Recommended exposure times

Normal layers
-
seconds
Bottom layers
-
seconds

These are starting estimates. Print a RERF test to dial in your exact resin batch - see the guide below.

Lift speed ?
-
Bottom layer count ?
-

Anti-aliasing ?

-

RERF test guide ?

A RERF print is a matrix of small objects printed at several exposure levels in one go. Find the level that produces the sharpest details and thinnest walls without delamination.

  1. Download a RERF file for your printer from the Elegoo, Anycubic, or Phrozen support pages (search "[your printer model] RERF test file").
  2. Open the RERF file in your slicer (Chitubox, Lychee Slicer, or the printer's own app). Do not re-slice it - use it as-is.
  3. Set your slicer's normal exposure to the value shown above. The RERF file will print a range of exposures around that starting point (typically ±0.5 s in 8 steps).
  4. Print and inspect: the correct column will show crisp lettering, thin walls without breakage, and no over-cure blooming.
  5. Note the winning exposure time and use it as your normal layer setting going forward. Repeat if you switch to a different resin brand or colour.