The role of a slicer like Cura
A slicer converts 3D files (.STL, .OBJ) into G-code, the language of printers: extruder path, number of layers, speed, supports. Cura, developed by Ultimaker, is free and open source — its code is freely accessible and modifiable. It is the "conductor" of printing: a poorly prepared file produces an unusable part, even with a good 3D model.
The basic settings to check
- Select a compatible printer profile
- Import at the right scale (Cura works in millimetres)
- Rest the bearing face on the bed, avoid large overhangs
The essential parameters
Layer height: for a 0.4 mm nozzle, between 0.1 and 0.28 mm — finer looks better but takes longer. Infill: 15–25% for appearance, 50% and above for structural parts. Temperature & speed: respect the filament's range; 40 to 60 mm/s offer a good quality/time compromise.
Supports and bed adhesion
- Enable supports only if necessary
- Test alternative orientations to avoid them
- Brim or raft depending on the part
- Keep the bed clean
Tips and mistakes to avoid
- Do not neglect the first layer (slow speed, right temperature)
- Keep an eye on the estimated time and filament weight
- Create and reuse profiles by material
In short
Configuring Cura well is essential for a compliant result. And if you would rather delegate, we handle the whole process, from file to finished product.
Read also: our tooling pointers on the software & supports hub. See also CAD.