1: The position of the gear and the accuracy of all screw holes are calibrated.
2: Modified the new buckle, both sides of the V2.0 version of the DDB extruder support filament in and out (that is, it has no specified directionality, and you use either side of it as a material port)
3: The filament has an independent motion cabin inside the extruder. The white filament guide is made of a mixed material with lubricating properties. Its interior is very smooth, and it can withstand your crazy parameter settings.
4: A gap is reserved on the top to correspond to the threaded screw rod of the ender3 printer.
5: Brand new mixed materials, the shell is more rigid and tough.
*SET1: package options do not include stepper motors
SET 2: DDB Extruder + 23MM MOTOR(1.8deg NEMA17 23MM)