filament - No extrusion, but manual extrusion works - 3D Printing Stack Exchange

I just bought and build my first 3d printer (HE3D K280 with Marlin) and I'm encountering some problems with Cura 4 and Repetier. When I load and slice a part, the printer does not extrude anything

extruder - Printing with PETG, printer says it's out of filament when it clearly is not - 3D Printing Stack Exchange

Official Creality Ender 3 V2 Neo 3D Printer with CR Touch Auto Leveling Kit PC Spring Steel Platform Full-Metal Extruder, 95% Pre-Installed 3D Printers with Resume Printing and Model Preview Function:

extruder - Adventurer 3 3D Printer doesn't extrude correctly - 3D Printing Stack Exchange

ultimaker cura - Under extrusion caused by sharp turns(?) - 3D Printing Stack Exchange

An open source extrusion bioprinter based on the E3D motion system and tool changer to enable FRESH and multimaterial bioprinting

creality ender 3 - Filament end expanding and seizing - 3D Printing Stack Exchange

The Best Large 3D Printers in 2023

✔️Durable Material -- High quality aluminum alloy material and sandblast to surface oxidization, ensuring this red extruder is last for long term use!

Creality Official 3D Printer Extruder, Upgraded Aluminum Drive Feed Extruders Accessories for 3D Printer 1.75mm Filament Works with Creality CR-10

extruder - Monoprice Maker Select v2 stops extruding after about 200-300 mm - 3D Printing Stack Exchange