Geeetech A20 – Спецификации и настройки

The Geeetech A20 is an FDM 3D printer tailored for the experimenter class, scaling up its capability with a balanced build volume of 250x250x250 mm. By employing a classic and sturdy kinematic design, the A20 serves as a reliable workhorse for larger functional parts, architectural models, and extended production cycles.

Спецификации

• Производител: Geeetech
• Технология: FDM
• Клас: experimenter

Чести проблеми и решения

Stringing

• Description: Thin strands of plastic resembling spider webs appear between separate parts of the printed object [1]. Решение:: Dry the filament for 4 to 6 hours at 50 °C for PLA, increase the retraction distance by 1 to 2 mm, and decrease the nozzle temperature by 5 °C [2].

Warping

• Description: The corners or edges of the print detach from the platform and curl upwards due to thermal stress [2]. Решение:: Increase the bed temperature by 5 °C, add a 5 to 10 mm Brim, and reduce the part cooling fan power to 30 % for the first 5 layers [3].

Elephant’s foot

• Description: The bottom layer of the print is expanded outwards beyond the specified CAD dimensions [4]. Решение:: Raise the Z-offset by +0.05 mm, decrease the bed temperature by 5 °C specifically for the first layer, and enable software compensation of 0.1 to 0.2 mm [4].

Подходящи приложения

• Rapid Prototyping:: Fast creation of prototypes for form, fit, and ergonomics checking, which can be executed in hours rather than days [5, 6]. (Industry: Product Design and Engineering)
• Functional Parts Manufacturing:: Producing functional parts such as jigs, fixtures, templates, and electronics enclosures in small series of 1 to 100 units [5, 6]. (Industry: Automotive and Manufacturing)
• STEM Projects:: Utilizing the 3D printer for educational purposes and school laboratories to guide students from idea to physical object [5, 6]. (Industry: Education)