KLEMA 250 Twin: Dual-Extrusion Technical Review – Спецификации и настройки

The KLEMA 250 Twin pushes the boundaries of the experimenter tier by introducing true dual-extrusion capabilities. Maintaining the generous 250 x 250 x 350 mm build envelope, the Twin allows for multi-material printing – combining rigid structural polymers with soluble support materials (like PVA or HIPS), or integrating dual-color aesthetics. Through complex Cura profiles, this dual-hotend kinematic architecture eliminates geometric constraints on overhangs and internal channels, opening up unprecedented design freedom.

Спецификации

• Производител: KLEMA
• Технология: FDM
• Клас: experimenter

Чести проблеми и решения

Stringing (Spider Webs)

• Diagnostics: Thin strings of plastic resembling spider webs appear between printed parts, typically caused by wet filament or insufficient retraction. Решение:

Warping (Thermal Stress)

• Diagnostics: The corners or edges of the print detach from the build plate and curl upwards due to uneven cooling and thermal residual stress. Решение:

Clogging (Hotend Jamming)

• Diagnostics: Extrusion stops completely during printing due to debris, moisture, heat creep, or using abrasive materials without a hardened nozzle. Решение:

Подходящи приложения

• Complex Geometries with Soluble Supports (Aerospace & Robotics): * Utilizing dual extrusion capabilities to print highly complex parts with overhangs exceeding 45 degrees, complex internal channels, or moving mechanisms in-place using PVA or HIPS soluble support materials.
• Automotive Jigs and Fixtures: * Manufacturing highly durable, custom manufacturing templates capable of withstanding heavy mechanical loads using engineering materials like CF-Nylon.
• Rapid Prototyping (Consumer Electronics): * Fast production of functional, multi-material prototypes (e.g. rigid bodies with TPU overmolding) for fit-check and ergonomic testing using PLA or PETG materials.