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SUNLU
Good fit if one spool at a time covers your printing routine and the material calls for no more than 70°C.
Check the updated S2 revision and spool dimensions. A 70°C ceiling does not cover every nylon formulation.
Creality
Good fit if you regularly switch between two spools that can share a drying temperature.
Both spools share one temperature environment. Do not confuse Plus with single-spool Space Pi or X4.
Creality
Good fit if you need two temperature zones or your filament instructions call for more than 70°C and no more than 85°C.
X4 and X4L have different temperature ceilings. Some engineering filaments need more than 85°C.
Document-based comparisons, not hands-on tests. How we compare ↗