Skip to main content
Printer presets provide a convenient way to quickly configure Mslicer for specific resin printer models. Each preset contains the printer’s LCD resolution and build platform dimensions.

​
How Printer Presets Work

Printer presets are defined in the application’s configuration file (config.toml) and are loaded at startup. When a preset is selected, it automatically sets the platform_resolution and platform_size values in the slice configuration.

​
PrinterDefaults Structure

Printer presets are defined by the PrinterDefaults struct in mslicer/src/app/config.rs:43:
​
name
String
required
The display name of the printer preset shown in the UI dropdown.
​
resolution
Vector2<u32>
required
The LCD screen resolution in pixels (width × height).Example: Vector2::new(11_520, 5_120) for 11,520 × 5,120 pixels
​
size
Vector3<Milimeters>
required
The physical build platform dimensions in millimeters (width × depth × height).Example: Vector3::new(218.88, 122.904, 260.0) for 218.88 × 122.904 × 260.0 mm

​
Default Preset

Mslicer includes one built-in preset by default:
  • Elegoo Saturn 3 Ultra
    • Resolution: 11,520 × 5,120 pixels
    • Build Size: 218.88 × 122.904 × 260.0 mm
This preset is defined in mslicer/src/app/config.rs:114.

​
Creating Custom Presets

You can add custom printer presets by manually editing the config.toml file in your configuration directory. Access this directory through the Workspace tab in Mslicer.

​
Configuration File Format

Add printer presets to the [[printers]] array in config.toml: 
[[printers]]
name = "Elegoo Saturn 3 Ultra"
resolution = [11520, 5120]
size = [218.88, 122.904, 260.0]

[[printers]]
name = "Your Custom Printer"
resolution = [3840, 2400]
size = [192.0, 120.0, 245.0]

​
Finding Your Printer’s Specifications

To create an accurate preset, you’ll need:
  1. LCD Resolution: Check your printer’s specifications or manual for the pixel dimensions
  2. Build Volume: Note the X, Y, and Z dimensions of the build platform in millimeters
The resolution and size values must match precisely for accurate slicing. Incorrect values will result in models being sliced at the wrong scale.

​
Using Presets in the UI

The printer preset selector is located in the Slice Config window (mslicer/src/windows/slice_config.rs:60):
  1. Open the Slice Config panel
  2. Use the “Printer” dropdown to select your preset
  3. Hover over a preset name to see its resolution and build volume
  4. Select “Custom” to manually configure platform settings

​
Custom Mode

When “Custom” is selected (selected_printer == 0), you can manually adjust:
  • Platform Resolution (using drag controls)
  • Platform Size (X, Y, Z dimensions)
These manual settings override any preset values and allow for one-off configurations without creating a permanent preset.

​
Preset Loading

Presets are loaded from config.toml at application startup. The configuration is deserialized into the Config::printers vector, which contains all available PrinterDefaults entries. When a preset is selected, the UI automatically:
  1. Updates slice_config.platform_resolution to match the preset
  2. Updates slice_config.platform_size to match the preset
  3. Recalculates model bounds to ensure they fit within the build volume
This ensures that all models are validated against the correct platform dimensions immediately after switching presets.

Build docs developers (and LLMs) love

Get started for freeTalk to us