Malo sam sad više nešto našao o tome i sad je pitanje kako i što je kod mene u pitanju.
Nakima je orginal Bambu filter sa aktivnim ugljenom bio problem pa kad ga maknu ili stave modani onda puše van iz printera.
U nekim slučajevima kad se part (aux) fan ugasi onda opet puše prema van.
Jedno od rješenja bilo je i da se zadnji poklopac na dijelu koji pokriva ventilator ispili da ne pruža otpor.
Čekam da se Bambu support javi pa da onda vidim u kojem smijeru krenuti dalje.
Nemam sad vremena isprobavati ovo sa i bez filtera i aux ventilatora, ali kad ulovim vremana probat ću to svakako.
EDIT:
Izgleda da je ovakvo ponašanje ventilatora očekivano ovisno o uvjetima u kojim radi.
Evo odgovora supporta
Citiraj:
The fan on the back of the chassis is designed for exhaust or temperature control, and it only expels air outward.
The blades of axial fans are designed with aerodynamic principles in mind, resulting in a higher linear velocity at the outer edges compared to the inner edges. This creates greater air pressure at the outer edges and lower pressure at the inner edges. When airflow resistance increases in the ventilation duct (such as when an activated carbon filter is added), this pressure difference may cause air at the outer edges of the exhaust vent to be drawn back toward the inner edges, creating a backflow effect. However, the net airflow remains outward.
Below are some details about axial fans, provided for your reference if you're interested:
Basic Characteristics of Axial Fans
- High airflow, low pressure head : Axial fans are designed to deliver significant ventilation volume under low-pressure conditions, making them ideal for applications that require substantial airflow without high pressure demands.
Impact of Airflow Resistance on Fan Performance
- Without activated carbon : When ventilation resistance is low, the fan operates at its optimal point, delivering maximum airflow.
- With activated carbon added : The activated carbon increases resistance in the ventilation duct, altering the fan's operating state. To overcome the added resistance, the fan may increase speed or adjust blade angles, typically resulting in reduced airflow but increased pressure.
- "Internal recirculation" phenomenon : As airflow resistance rises, the internal air movement may become unstable. Due to the difference in radial linear velocity (higher at the outer edges), a pressure gradient forms within the fan. This gradient can cause some air to flow back from the exhaust vent to the intake, creating what is known as the "internal recirculation" phenomenon.
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