Exposure time

Definition

Exposure time is how long the UV LCD cures each resin slice. Mono screens are several times faster than older RGB panels at the same layer height. A first-order scale is t_new = t_old × (h_new / h_old) × (screen_new / screen_old). Always print an exposure calibration matrix after a resin, screen or firmware change — the formula is a starting guess, not a certified cure.

Calculators that use this

• Resin 3D printing

  Exposure Time Scaling Calculator

  Scale SLA/MSLA cure time when you change layer height or move between RGB and mono LCDs. First-order guess, then print a validation matrix.

• Resin 3D printing

  Bottom / Burn-in Layer Exposure

  Calculate MSLA/SLA burn-in exposure from normal layer time, a multiplier and bottom-layer count. Outputs per-layer seconds, total base time and the ratio used.