RERF on Anycubic X 6Ks

Submitted by Erik Wegner on Tue, 09/09/2025 - 19:50

The Anycubic resin printers provide a mode where the build plate is divided in a 2x4 grid. Each grid cell is is exposed for a different duration to find the optimal settings.

The USB drive that came with the printer contains a file with a special name: Simple_R_E_R_F文件.px6s. When printing this file, the printer automatically switches each quarter of the light off at .25 seconds later than the previous one. The default file contains a model that prints over an hour.

To be faster, I switched to this expose test file: https://cults3d.com/de/modell-3d/werkzeuge/mono-m5-m5s-numnbered-calibration, it prints in 15 minutes. The grind from https://cults3d.com/de/modell-3d/werkzeuge/rerf-grid-for-anycubic-photon-mono-4-scad-file helped to scale the model to the build plate.

// Bed Lenght (mm)

bed_x = 195.84;

// Bed Width (mm)

bed_y = 122.4;

//Border Thickness (mm)

border = 0.5;

//Grid Columns

cols = 4;

//Grid Rows

rows = 2;



// Calculate cell sizes

cell_width = (bed_x - (cols - 1) * border) / cols;

cell_height = (bed_y - (rows - 1) * border) / rows;



// Outer rectangle (the full border)

difference() {

    // Outer rectangle

    cube([bed_x, bed_y, border]);

    

    // Inner hollow grid space

    for (i = [0:cols-1]) {

        for (j = [0:rows-1]) {

            // Position the hollow grid cells

            translate([i * (cell_width + border), j * (cell_height + border), 0])

                cube([cell_width, cell_height, border + 1]);

        }

    }

}

The test model was loaded into Lychee slicer 7.4.2. A small cube was added to the top right corner to have an anchor for the orientation throughout the tool chain.

Lychee slicer