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Hotend assembly with retractable layer fan

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Creation quality: 5.0/5 (1 vote)
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Publication date 2023-02-27 at 15:21
Design number 1088888

3D printer file info

3D model description

Hotend assembly for V6 and Volcano type extruders with retractable layer fan (type PB04020MS4). It is assembled with M3x20 screws (left over from the assembly of any printer) for printers with Ender and Magna type X-axis carriages. It consists of 4 independent parts plus the heatsink clamp.

A retractable cape fan confers some advantages such as:

-easy maintenance and cleaning of the nozzle and heater.

-It is possible to work with the fan retracted (or completely disassembled) to improve observation and control on jobs where the use of the cape fan is not required.

-Easy to remove filament residues during printing of the first few layers

-prevents the fan nozzle from traction with parts of the print in progress ruining fan or print. This at the same time

allows the fan nozzle to work very close to the nozzle cooling only the extruded plastic and avoiding cooling the heating block.

3D printing settings

material: preferably PET or ABS

Normal extruder and bed temperatures and layer fan depending on material.

0.4 mm nozzle:

layer height: 0.2 mm

perimeters: 3

seams: aligned

filling: 40% (triangular)

supports: yes (only at the base, no skirts or rafts)

shrinkages: yes (5 mm in bowden type extruders)

speed: 40 mm/s

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